Buying a replacement engine
12-31-2006 | 09:18 AM
#31
Guest
Posts: n/a
Re: Buying a replacement engine
"John Horner" <jthorner@yahoo.com> wrote in message
news:9DHlh.6785$tc5.2649@trnddc01...
> jim beam wrote:
>
>>
>> the biggest thing is to buy with a credit card [not debit card]. that
>> way, ultimately, if there's a problem, the vendor has to work with you
>> and the credit card company to resolve any problems. i'd just go for one
>> of the direct jdm importers with as low a mileage as possible. you don't
>> need much of a warranty - say a month. if it works, has no head problems
>> and doesn't burn oil, you're set - all those will be detectable in the
>> first week or so.
>>
>
> Ah, but how is one to know if the stated mileage is accurate? And what do
> you know about how the engine was maintained ... nothing.
>
> Sounds like a crap shoot to me.
>
There's something about a car that isn't?
The odds should be good, though. As I understand it Japanese emission
standards are so tight that engines are replaced because of normal wear long
before they would be considered unserviceable here.
I would put a new timing belt and water pump on before putting the engine in
a car, though. It's got to be easier to do on a stand, and then the new
owner knows when it is due again.
Mike
news:9DHlh.6785$tc5.2649@trnddc01...
> jim beam wrote:
>
>>
>> the biggest thing is to buy with a credit card [not debit card]. that
>> way, ultimately, if there's a problem, the vendor has to work with you
>> and the credit card company to resolve any problems. i'd just go for one
>> of the direct jdm importers with as low a mileage as possible. you don't
>> need much of a warranty - say a month. if it works, has no head problems
>> and doesn't burn oil, you're set - all those will be detectable in the
>> first week or so.
>>
>
> Ah, but how is one to know if the stated mileage is accurate? And what do
> you know about how the engine was maintained ... nothing.
>
> Sounds like a crap shoot to me.
>
There's something about a car that isn't?
The odds should be good, though. As I understand it Japanese emission
standards are so tight that engines are replaced because of normal wear long
before they would be considered unserviceable here.
I would put a new timing belt and water pump on before putting the engine in
a car, though. It's got to be easier to do on a stand, and then the new
owner knows when it is due again.
Mike
12-31-2006 | 09:18 AM
#32
Guest
Posts: n/a
Re: Buying a replacement engine
"John Horner" <jthorner@yahoo.com> wrote in message
news:9DHlh.6785$tc5.2649@trnddc01...
> jim beam wrote:
>
>>
>> the biggest thing is to buy with a credit card [not debit card]. that
>> way, ultimately, if there's a problem, the vendor has to work with you
>> and the credit card company to resolve any problems. i'd just go for one
>> of the direct jdm importers with as low a mileage as possible. you don't
>> need much of a warranty - say a month. if it works, has no head problems
>> and doesn't burn oil, you're set - all those will be detectable in the
>> first week or so.
>>
>
> Ah, but how is one to know if the stated mileage is accurate? And what do
> you know about how the engine was maintained ... nothing.
>
> Sounds like a crap shoot to me.
>
There's something about a car that isn't?
The odds should be good, though. As I understand it Japanese emission
standards are so tight that engines are replaced because of normal wear long
before they would be considered unserviceable here.
I would put a new timing belt and water pump on before putting the engine in
a car, though. It's got to be easier to do on a stand, and then the new
owner knows when it is due again.
Mike
news:9DHlh.6785$tc5.2649@trnddc01...
> jim beam wrote:
>
>>
>> the biggest thing is to buy with a credit card [not debit card]. that
>> way, ultimately, if there's a problem, the vendor has to work with you
>> and the credit card company to resolve any problems. i'd just go for one
>> of the direct jdm importers with as low a mileage as possible. you don't
>> need much of a warranty - say a month. if it works, has no head problems
>> and doesn't burn oil, you're set - all those will be detectable in the
>> first week or so.
>>
>
> Ah, but how is one to know if the stated mileage is accurate? And what do
> you know about how the engine was maintained ... nothing.
>
> Sounds like a crap shoot to me.
>
There's something about a car that isn't?
The odds should be good, though. As I understand it Japanese emission
standards are so tight that engines are replaced because of normal wear long
before they would be considered unserviceable here.
I would put a new timing belt and water pump on before putting the engine in
a car, though. It's got to be easier to do on a stand, and then the new
owner knows when it is due again.
Mike
12-31-2006 | 09:31 AM
#33
Guest
Posts: n/a
Re: Buying a replacement engine
I just looked over the threads of this saga the OP began
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
12-31-2006 | 09:31 AM
#34
Guest
Posts: n/a
Re: Buying a replacement engine
I just looked over the threads of this saga the OP began
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
12-31-2006 | 09:31 AM
#35
Guest
Posts: n/a
Re: Buying a replacement engine
I just looked over the threads of this saga the OP began
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
earlier this year. Yikes. With all the other reports of head
gasket (or block or head etc.) failures, especially those
reported in summer time, I wonder if the newsgroup will
continue to see repeat failures resulting in the need for a
replacement engine.
Granted this is happening overwhelmingly in older Hondas, c.
1988-1993, so it's hard to say if it's due to an imperfect
repair job; extraordinary summer heat; or simply the age of
these older Hondas.
01-01-2007 | 11:15 AM
#36
Guest
Posts: n/a
Re: Buying a replacement engine
Michael Pardee wrote:
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
01-01-2007 | 11:15 AM
#37
Guest
Posts: n/a
Re: Buying a replacement engine
Michael Pardee wrote:
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
01-01-2007 | 11:15 AM
#38
Guest
Posts: n/a
Re: Buying a replacement engine
Michael Pardee wrote:
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
>
> There's something about a car that isn't?
>
> The odds should be good, though. As I understand it Japanese emission
> standards are so tight that engines are replaced because of normal wear
> long before they would be considered unserviceable here.
>
> I would put a new timing belt and water pump on before putting the engine
> in a car, though. It's got to be easier to do on a stand, and then the
> new owner knows when it is due again.
>
A new thermostat would also be a great idea.
Eric
01-01-2007 | 06:56 PM
#42
Guest
Posts: n/a
Re: Buying a replacement engine
Jim,
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
01-01-2007 | 06:56 PM
#43
Guest
Posts: n/a
Re: Buying a replacement engine
Jim,
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
01-01-2007 | 06:56 PM
#44
Guest
Posts: n/a
Re: Buying a replacement engine
Jim,
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
Not trying to jack this thread. But I have a question.
Why does automotive engine usage get measured in miles/kms and any other
heavy duty application get measured in hours?
Wouldn't these engines from Japan have crazy high hours?
I was speaking with a farmer the other day, and he shed some good light on
the whole oil change thing.... He said John Deere recommends an oil change
every 300-400 hours.
If I translate that length of time into KMs in my car, assuming my average
speed is around 50km/h, (I do alot of highway miles) that would mean that 300
hours is 15000kms? For the record, I change every 5000kms. But why the
discrepancy?
I buy heavy duty diesel engines for a living. I don't maintain them for a
living though... otherwise I would know Cummins' intervals for oil changes.
But I do happen to know on the design side that oil filtration is really no
different on these heavy duty applications than on the average consumer
vehicle.
Comments?
t
jim beam wrote:
>> thanks jim,
>>
>[quoted text clipped - 3 lines]
>> also, is this industry legit? as in, are the mileages they quote for
>> real or is it just B.S.? would i be better off going to the junk yard?
>
>no, it's legit. mileages should be about right - other markets,
>particularly japan, do much lower mileage than us. that's why i'd only
>buy a domestic motor in emergency - /much/ higher mileage. but that
>said, there's no reason a d15 can't do 300k miles if it's not been
>cracked and has had the oil changed regularly.
>
>i'm not endorsing any of the following:
>http://www.sunrisejdmmotors.com/
>http://www.nippon-motors.com/honda.htm
>http://www.naganojapanese.com/
>
>there are a bunch of others if you google.
>
>good luck!
>
>> thanks again (exciting saturday, right?).
>
>you're not going anywhere with that motor!
>
>>>> i've done some looking online and it's difficult to discern what's what
>>>> and if a given website is legitimate. that's the biggest difficulty.
>[quoted text clipped - 50 lines]
>>>>> a number of possible causes, all of which are cheaper and less
>>>>> troublesome than replacing the whole unit.
--
Message posted via CarKB.com
http://www.carkb.com/Uwe/Forums.aspx...-cars/200701/1
01-01-2007 | 10:30 PM
#45
Guest
Posts: n/a
Re: Buying a replacement engine
loewent via CarKB.com wrote:
> Jim,
>
> Not trying to jack this thread. But I have a question.
>
> Why does automotive engine usage get measured in miles/kms and any other
> heavy duty application get measured in hours?
>
> Wouldn't these engines from Japan have crazy high hours?
>
> I was speaking with a farmer the other day, and he shed some good light on
> the whole oil change thing.... He said John Deere recommends an oil change
> every 300-400 hours.
>
> If I translate that length of time into KMs in my car, assuming my average
> speed is around 50km/h, (I do alot of highway miles) that would mean that 300
> hours is 15000kms? For the record, I change every 5000kms. But why the
> discrepancy?
>
> I buy heavy duty diesel engines for a living. I don't maintain them for a
> living though... otherwise I would know Cummins' intervals for oil changes.
> But I do happen to know on the design side that oil filtration is really no
> different on these heavy duty applications than on the average consumer
> vehicle.
>
> Comments?
very good question! to skip forward a bit, there's quite a bit of
movement in the industry towards pushing out oil change intervals.
there's two main methods - one is using the ecu to log usage and
electronically compare that with a table of oil conditions. the other is
measuring dielectric constant and mapping that in much the same way.
the expensive option is actual spark spectroscopy analysis like they use
in f1, but i'm not aware of that being used in production vehicles.
biggest reason for hour-based changes vs mileage is that with a lot of
diesels, [generators, etc.] there /are/ no miles to log! farm gear
doesn't cover a lot of mileage either.
regarding discrepancy, big commercial diesels tend to have a much more
regular life than the average passenger car. not only do diesels wear
less on cold start [diesel wetting a cylinder wall is a lubricant, not a
dilutant like gasoline], they tend to have a lot fewer cold starts too.
a lot of trucks run for days on end, marine diesels for months on end.
this means the oil has less crud in it from the cold start process
which helps. then there's filtration. a lot of big diesels have two
filters - one is full flow, the other is bypass. the bypass filter
pulls out all the fine stuff the full flow filter doesn't, and this
keeps the oil in pretty good shape. a lot of commercial fleets are also
supported by oil analysis and usage logging. a vehicle used on a
regular route can have its oil change strategy "tuned" very accurately.
hardly any passenger cars do this, so manufacturers are really trying
to cover hugely different usage patters with their recommended service
intervals.
but the bottom line on all this though is what the market supports.
even my old 89 civic has a 7500 mile change interval. yet who here
waits that long? the later civics have 10k as their interval - at
30mph, that's 333 hours, not far off john deere's diesel spec. again,
there's a lot of resistance among american consumers about extended
change intervals with people routinely ignoring the onboard diagnostics
and getting oil changed 2 or even 3 times before the oil service
notification comes on. i don't see us embracing much beyond 10k unless
there's a massive public education campaign, but that's against the
interests of the oil industry, so that ain't going to happen! otoh, i
hear that the europeans are very keen on long change intervals and for
pushing it out as far as possible with up to 30k on some of the euro
cars. of course, improved lubricants play a significant role in that too.
>
> t
>
> jim beam wrote:
>>> thanks jim,
>>>
>> [quoted text clipped - 3 lines]
>>> also, is this industry legit? as in, are the mileages they quote for
>>> real or is it just B.S.? would i be better off going to the junk yard?
>> no, it's legit. mileages should be about right - other markets,
>> particularly japan, do much lower mileage than us. that's why i'd only
>> buy a domestic motor in emergency - /much/ higher mileage. but that
>> said, there's no reason a d15 can't do 300k miles if it's not been
>> cracked and has had the oil changed regularly.
>>
>> i'm not endorsing any of the following:
>> http://www.sunrisejdmmotors.com/
>> http://www.nippon-motors.com/honda.htm
>> http://www.naganojapanese.com/
>>
>> there are a bunch of others if you google.
>>
>> good luck!
>>
>>> thanks again (exciting saturday, right?).
>> you're not going anywhere with that motor!
>>
>>>>> i've done some looking online and it's difficult to discern what's what
>>>>> and if a given website is legitimate. that's the biggest difficulty.
>> [quoted text clipped - 50 lines]
>>>>>> a number of possible causes, all of which are cheaper and less
>>>>>> troublesome than replacing the whole unit.
>
> Jim,
>
> Not trying to jack this thread. But I have a question.
>
> Why does automotive engine usage get measured in miles/kms and any other
> heavy duty application get measured in hours?
>
> Wouldn't these engines from Japan have crazy high hours?
>
> I was speaking with a farmer the other day, and he shed some good light on
> the whole oil change thing.... He said John Deere recommends an oil change
> every 300-400 hours.
>
> If I translate that length of time into KMs in my car, assuming my average
> speed is around 50km/h, (I do alot of highway miles) that would mean that 300
> hours is 15000kms? For the record, I change every 5000kms. But why the
> discrepancy?
>
> I buy heavy duty diesel engines for a living. I don't maintain them for a
> living though... otherwise I would know Cummins' intervals for oil changes.
> But I do happen to know on the design side that oil filtration is really no
> different on these heavy duty applications than on the average consumer
> vehicle.
>
> Comments?
very good question! to skip forward a bit, there's quite a bit of
movement in the industry towards pushing out oil change intervals.
there's two main methods - one is using the ecu to log usage and
electronically compare that with a table of oil conditions. the other is
measuring dielectric constant and mapping that in much the same way.
the expensive option is actual spark spectroscopy analysis like they use
in f1, but i'm not aware of that being used in production vehicles.
biggest reason for hour-based changes vs mileage is that with a lot of
diesels, [generators, etc.] there /are/ no miles to log! farm gear
doesn't cover a lot of mileage either.
regarding discrepancy, big commercial diesels tend to have a much more
regular life than the average passenger car. not only do diesels wear
less on cold start [diesel wetting a cylinder wall is a lubricant, not a
dilutant like gasoline], they tend to have a lot fewer cold starts too.
a lot of trucks run for days on end, marine diesels for months on end.
this means the oil has less crud in it from the cold start process
which helps. then there's filtration. a lot of big diesels have two
filters - one is full flow, the other is bypass. the bypass filter
pulls out all the fine stuff the full flow filter doesn't, and this
keeps the oil in pretty good shape. a lot of commercial fleets are also
supported by oil analysis and usage logging. a vehicle used on a
regular route can have its oil change strategy "tuned" very accurately.
hardly any passenger cars do this, so manufacturers are really trying
to cover hugely different usage patters with their recommended service
intervals.
but the bottom line on all this though is what the market supports.
even my old 89 civic has a 7500 mile change interval. yet who here
waits that long? the later civics have 10k as their interval - at
30mph, that's 333 hours, not far off john deere's diesel spec. again,
there's a lot of resistance among american consumers about extended
change intervals with people routinely ignoring the onboard diagnostics
and getting oil changed 2 or even 3 times before the oil service
notification comes on. i don't see us embracing much beyond 10k unless
there's a massive public education campaign, but that's against the
interests of the oil industry, so that ain't going to happen! otoh, i
hear that the europeans are very keen on long change intervals and for
pushing it out as far as possible with up to 30k on some of the euro
cars. of course, improved lubricants play a significant role in that too.
>
> t
>
> jim beam wrote:
>>> thanks jim,
>>>
>> [quoted text clipped - 3 lines]
>>> also, is this industry legit? as in, are the mileages they quote for
>>> real or is it just B.S.? would i be better off going to the junk yard?
>> no, it's legit. mileages should be about right - other markets,
>> particularly japan, do much lower mileage than us. that's why i'd only
>> buy a domestic motor in emergency - /much/ higher mileage. but that
>> said, there's no reason a d15 can't do 300k miles if it's not been
>> cracked and has had the oil changed regularly.
>>
>> i'm not endorsing any of the following:
>> http://www.sunrisejdmmotors.com/
>> http://www.nippon-motors.com/honda.htm
>> http://www.naganojapanese.com/
>>
>> there are a bunch of others if you google.
>>
>> good luck!
>>
>>> thanks again (exciting saturday, right?).
>> you're not going anywhere with that motor!
>>
>>>>> i've done some looking online and it's difficult to discern what's what
>>>>> and if a given website is legitimate. that's the biggest difficulty.
>> [quoted text clipped - 50 lines]
>>>>>> a number of possible causes, all of which are cheaper and less
>>>>>> troublesome than replacing the whole unit.
>