On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:

> Hachiroku $B%O%A%m%/ wrote:
>> On Sun, 29 Apr 2007 18:49:53 -0700, jim beam wrote:
>>
>>>> Any suggestions would be greatly appreciated.
>>>>
>>> if there's bubbling in the expansion bottle, it's head gasket.
>>
>>
>> Not necessarily. When the coolant overheats it boils. Since it is a
>> closed system, the only place it can boil is...in the bottle.
>
> that's supposition, not fact. run an infrared thermometer on the cooling
> system. check out the temperature delta between the main system and the
> expansion bottle on the end of the long skinny pipe. the only way for
> there to be gas bubbling in that bottle simply from "boiling" is if the
> vent on the radiator cap is stuck, /and/ the engine reaches way past
> boiling, /and/ this cap suddenly releases allowing sufficient superheated
> water to exit the long skinny pipe still at above boiling, and for that to
> heat and keep on heating the cooler liquid in the expansion bottle. it
> /can/ happen, but it's highly unlikely.
>
>
>> Last summer my Supra (the Poster Child for bad head gaskets!) boiled
>> over a couple of times. The first time was scary as hell! On the
>> highway, temp gauge rising,
>
> the fans don't work on the highway - airflow from car movement exceeds
> airflow from fan rotation by a country mile. if you were boiling, you had
> airflow restriction, thermostat problems or a gasket problem.

LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
to pass you! Oh, yeah, the fan kicks in! (It's attached to the
crankshaft...not electric, and uses a heat-sensitive oil that thickens
when hot and causes the fan to be driven, rather than just 'feathering'.)



>
>> a loud *SIGH* from under the hood and smoke kind of smoke! I still have
>> NO idea what the smoke was! Opened the hood and the Overflow bottle was
>> bubbling like a witch's cauldron! I let it cool and it ran fine for a
>> few weeks.
>
> buy an infrared thermometer and scope the temp of the block.
>
>
>> Then, we were on our way to a gig in Vermont and it started overheating
>> again. This time I was keeping an eye on the termp gauge and pulled over
>> well before it sighed again. But the OF bottle was bubbling up again.We
>> got to the place just as the temp was creeping up again.
>>
>> In the next week I ran some tests and determined the fan clutch was
>> shot, and on hot days there just wasn't enough air getting into the
>> engine bay. I put in a new fan clutch (this was in late June, BTW) and I
>> haven't had a problem since. No coolant disappearing, no boil overs, no
>> overheating.
>>
>> I consider myself LUCKY! (Knocking on my Pine desk!!!)
>>
> gaskets can be odd. i boiled mine with a leaking gasket a couple of
> summers ago. then she settled down, then she stated leaking again. and i
> ran it leaking for about 10k miles before i decided it was bad enough to
> fix.
>
> you [and the op] should do an exhaust gas chemical test on the coolant -
> that'll show for sure.

 

On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:

> Hachiroku $B%O%A%m%/ wrote:
>> On Sun, 29 Apr 2007 18:49:53 -0700, jim beam wrote:
>>
>>>> Any suggestions would be greatly appreciated.
>>>>
>>> if there's bubbling in the expansion bottle, it's head gasket.
>>
>>
>> Not necessarily. When the coolant overheats it boils. Since it is a
>> closed system, the only place it can boil is...in the bottle.
>
> that's supposition, not fact. run an infrared thermometer on the cooling
> system. check out the temperature delta between the main system and the
> expansion bottle on the end of the long skinny pipe. the only way for
> there to be gas bubbling in that bottle simply from "boiling" is if the
> vent on the radiator cap is stuck, /and/ the engine reaches way past
> boiling, /and/ this cap suddenly releases allowing sufficient superheated
> water to exit the long skinny pipe still at above boiling, and for that to
> heat and keep on heating the cooler liquid in the expansion bottle. it
> /can/ happen, but it's highly unlikely.
>
>
>> Last summer my Supra (the Poster Child for bad head gaskets!) boiled
>> over a couple of times. The first time was scary as hell! On the
>> highway, temp gauge rising,
>
> the fans don't work on the highway - airflow from car movement exceeds
> airflow from fan rotation by a country mile. if you were boiling, you had
> airflow restriction, thermostat problems or a gasket problem.

LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
to pass you! Oh, yeah, the fan kicks in! (It's attached to the
crankshaft...not electric, and uses a heat-sensitive oil that thickens
when hot and causes the fan to be driven, rather than just 'feathering'.)



>
>> a loud *SIGH* from under the hood and smoke kind of smoke! I still have
>> NO idea what the smoke was! Opened the hood and the Overflow bottle was
>> bubbling like a witch's cauldron! I let it cool and it ran fine for a
>> few weeks.
>
> buy an infrared thermometer and scope the temp of the block.
>
>
>> Then, we were on our way to a gig in Vermont and it started overheating
>> again. This time I was keeping an eye on the termp gauge and pulled over
>> well before it sighed again. But the OF bottle was bubbling up again.We
>> got to the place just as the temp was creeping up again.
>>
>> In the next week I ran some tests and determined the fan clutch was
>> shot, and on hot days there just wasn't enough air getting into the
>> engine bay. I put in a new fan clutch (this was in late June, BTW) and I
>> haven't had a problem since. No coolant disappearing, no boil overs, no
>> overheating.
>>
>> I consider myself LUCKY! (Knocking on my Pine desk!!!)
>>
> gaskets can be odd. i boiled mine with a leaking gasket a couple of
> summers ago. then she settled down, then she stated leaking again. and i
> ran it leaking for about 10k miles before i decided it was bad enough to
> fix.
>
> you [and the op] should do an exhaust gas chemical test on the coolant -
> that'll show for sure.

 

Hachiroku $B%O%A%m%/ wrote:
> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>
>> Hachiroku $B%O%A%m%/ wrote:
>>> On Sun, 29 Apr 2007 18:49:53 -0700, jim beam wrote:
>>>
>>>>> Any suggestions would be greatly appreciated.
>>>>>
>>>> if there's bubbling in the expansion bottle, it's head gasket.
>>>
>>> Not necessarily. When the coolant overheats it boils. Since it is a
>>> closed system, the only place it can boil is...in the bottle.
>> that's supposition, not fact. run an infrared thermometer on the cooling
>> system. check out the temperature delta between the main system and the
>> expansion bottle on the end of the long skinny pipe. the only way for
>> there to be gas bubbling in that bottle simply from "boiling" is if the
>> vent on the radiator cap is stuck, /and/ the engine reaches way past
>> boiling, /and/ this cap suddenly releases allowing sufficient superheated
>> water to exit the long skinny pipe still at above boiling, and for that to
>> heat and keep on heating the cooler liquid in the expansion bottle. it
>> /can/ happen, but it's highly unlikely.
>>
>>
>>> Last summer my Supra (the Poster Child for bad head gaskets!) boiled
>>> over a couple of times. The first time was scary as hell! On the
>>> highway, temp gauge rising,
>> the fans don't work on the highway - airflow from car movement exceeds
>> airflow from fan rotation by a country mile. if you were boiling, you had
>> airflow restriction, thermostat problems or a gasket problem.
>
> LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
> 70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
> to pass you! Oh, yeah, the fan kicks in! (It's attached to the
> crankshaft...not electric, and uses a heat-sensitive oil that thickens
> when hot and causes the fan to be driven, rather than just 'feathering'.)

it comes on because it's just a "dumb" thermostat control, but it
doesnt' mean it's contributing very much. how much additional airflow
do you think is generated by 1 sq ft of fan vs 70mph on the full rad?
if it's even 10% i'll be amazed.

>
>
>
>>> a loud *SIGH* from under the hood and smoke kind of smoke! I still have
>>> NO idea what the smoke was! Opened the hood and the Overflow bottle was
>>> bubbling like a witch's cauldron! I let it cool and it ran fine for a
>>> few weeks.
>> buy an infrared thermometer and scope the temp of the block.
>>
>>
>>> Then, we were on our way to a gig in Vermont and it started overheating
>>> again. This time I was keeping an eye on the termp gauge and pulled over
>>> well before it sighed again. But the OF bottle was bubbling up again.We
>>> got to the place just as the temp was creeping up again.
>>>
>>> In the next week I ran some tests and determined the fan clutch was
>>> shot, and on hot days there just wasn't enough air getting into the
>>> engine bay. I put in a new fan clutch (this was in late June, BTW) and I
>>> haven't had a problem since. No coolant disappearing, no boil overs, no
>>> overheating.
>>>
>>> I consider myself LUCKY! (Knocking on my Pine desk!!!)
>>>
>> gaskets can be odd. i boiled mine with a leaking gasket a couple of
>> summers ago. then she settled down, then she stated leaking again. and i
>> ran it leaking for about 10k miles before i decided it was bad enough to
>> fix.
>>
>> you [and the op] should do an exhaust gas chemical test on the coolant -
>> that'll show for sure.
>

 

Hachiroku $B%O%A%m%/ wrote:
> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>
>> Hachiroku $B%O%A%m%/ wrote:
>>> On Sun, 29 Apr 2007 18:49:53 -0700, jim beam wrote:
>>>
>>>>> Any suggestions would be greatly appreciated.
>>>>>
>>>> if there's bubbling in the expansion bottle, it's head gasket.
>>>
>>> Not necessarily. When the coolant overheats it boils. Since it is a
>>> closed system, the only place it can boil is...in the bottle.
>> that's supposition, not fact. run an infrared thermometer on the cooling
>> system. check out the temperature delta between the main system and the
>> expansion bottle on the end of the long skinny pipe. the only way for
>> there to be gas bubbling in that bottle simply from "boiling" is if the
>> vent on the radiator cap is stuck, /and/ the engine reaches way past
>> boiling, /and/ this cap suddenly releases allowing sufficient superheated
>> water to exit the long skinny pipe still at above boiling, and for that to
>> heat and keep on heating the cooler liquid in the expansion bottle. it
>> /can/ happen, but it's highly unlikely.
>>
>>
>>> Last summer my Supra (the Poster Child for bad head gaskets!) boiled
>>> over a couple of times. The first time was scary as hell! On the
>>> highway, temp gauge rising,
>> the fans don't work on the highway - airflow from car movement exceeds
>> airflow from fan rotation by a country mile. if you were boiling, you had
>> airflow restriction, thermostat problems or a gasket problem.
>
> LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
> 70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
> to pass you! Oh, yeah, the fan kicks in! (It's attached to the
> crankshaft...not electric, and uses a heat-sensitive oil that thickens
> when hot and causes the fan to be driven, rather than just 'feathering'.)

it comes on because it's just a "dumb" thermostat control, but it
doesnt' mean it's contributing very much. how much additional airflow
do you think is generated by 1 sq ft of fan vs 70mph on the full rad?
if it's even 10% i'll be amazed.

>
>
>
>>> a loud *SIGH* from under the hood and smoke kind of smoke! I still have
>>> NO idea what the smoke was! Opened the hood and the Overflow bottle was
>>> bubbling like a witch's cauldron! I let it cool and it ran fine for a
>>> few weeks.
>> buy an infrared thermometer and scope the temp of the block.
>>
>>
>>> Then, we were on our way to a gig in Vermont and it started overheating
>>> again. This time I was keeping an eye on the termp gauge and pulled over
>>> well before it sighed again. But the OF bottle was bubbling up again.We
>>> got to the place just as the temp was creeping up again.
>>>
>>> In the next week I ran some tests and determined the fan clutch was
>>> shot, and on hot days there just wasn't enough air getting into the
>>> engine bay. I put in a new fan clutch (this was in late June, BTW) and I
>>> haven't had a problem since. No coolant disappearing, no boil overs, no
>>> overheating.
>>>
>>> I consider myself LUCKY! (Knocking on my Pine desk!!!)
>>>
>> gaskets can be odd. i boiled mine with a leaking gasket a couple of
>> summers ago. then she settled down, then she stated leaking again. and i
>> ran it leaking for about 10k miles before i decided it was bad enough to
>> fix.
>>
>> you [and the op] should do an exhaust gas chemical test on the coolant -
>> that'll show for sure.
>

 

Hachiroku 繝上メ繝繧ｯ wrote:

> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>
>

snip

>>
>>the fans don't work on the highway - airflow from car movement exceeds
>>airflow from fan rotation by a country mile. if you were boiling, you had
>>airflow restriction, thermostat problems or a gasket problem.
>
>
> LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
> 70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
> to pass you! Oh, yeah, the fan kicks in! (It's attached to the
> crankshaft...not electric, and uses a heat-sensitive oil that thickens
> when hot and causes the fan to be driven, rather than just 'feathering'.)
>


This is new to me... A fan attached to the crankshaft??? What is this
vehicle?

That said, if you're going 70 mph and it (thermostatic clutch) causes
the fan to come on, most likely you either have too little radiator or
its plugged.

JT

 

Hachiroku 繝上メ繝繧ｯ wrote:

> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>
>

snip

>>
>>the fans don't work on the highway - airflow from car movement exceeds
>>airflow from fan rotation by a country mile. if you were boiling, you had
>>airflow restriction, thermostat problems or a gasket problem.
>
>
> LOL! You come to Mass on a hot July day, and I'll take you for a ride. At
> 70MPH on the highway, when the fan kicks in it sounds like a B-17 trying
> to pass you! Oh, yeah, the fan kicks in! (It's attached to the
> crankshaft...not electric, and uses a heat-sensitive oil that thickens
> when hot and causes the fan to be driven, rather than just 'feathering'.)
>


This is new to me... A fan attached to the crankshaft??? What is this
vehicle?

That said, if you're going 70 mph and it (thermostatic clutch) causes
the fan to come on, most likely you either have too little radiator or
its plugged.

JT

 

Grumpy AuContraire <Grumpy@ExtraGrumpyville.com> wrote in
news:VGKZh.94257$VU4.23174@bgtnsc05-news.ops.worldnet.att.net:

>
>
> Hachiroku 繝上メ繝繧ｯ wrote:
>
>> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>
>>
>
> snip
>
>>>
>>>the fans don't work on the highway - airflow from car movement
>>>exceeds airflow from fan rotation by a country mile. if you were
>>>boiling, you had airflow restriction, thermostat problems or a gasket
>>>problem.
>>
>>
>> LOL! You come to Mass on a hot July day, and I'll take you for a
>> ride. At 70MPH on the highway, when the fan kicks in it sounds like a
>> B-17 trying to pass you! Oh, yeah, the fan kicks in! (It's attached
>> to the crankshaft...not electric, and uses a heat-sensitive oil that
>> thickens when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>>
>
>
> This is new to me... A fan attached to the crankshaft??? What is
> this vehicle?

Not a Honda.
>
> That said, if you're going 70 mph and it (thermostatic clutch) causes
> the fan to come on, most likely you either have too little radiator or
> its plugged.
>
> JT
>
>
>

No kidding.When the thermostat on my Integra stuck open,just going 20 mph
would cool the motor down to the C line(well below normal),In hot Central
Florida,in the summer.

--
Jim Yanik
jyanik
at
kua.net

 

Grumpy AuContraire <Grumpy@ExtraGrumpyville.com> wrote in
news:VGKZh.94257$VU4.23174@bgtnsc05-news.ops.worldnet.att.net:

>
>
> Hachiroku 繝上メ繝繧ｯ wrote:
>
>> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>
>>
>
> snip
>
>>>
>>>the fans don't work on the highway - airflow from car movement
>>>exceeds airflow from fan rotation by a country mile. if you were
>>>boiling, you had airflow restriction, thermostat problems or a gasket
>>>problem.
>>
>>
>> LOL! You come to Mass on a hot July day, and I'll take you for a
>> ride. At 70MPH on the highway, when the fan kicks in it sounds like a
>> B-17 trying to pass you! Oh, yeah, the fan kicks in! (It's attached
>> to the crankshaft...not electric, and uses a heat-sensitive oil that
>> thickens when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>>
>
>
> This is new to me... A fan attached to the crankshaft??? What is
> this vehicle?

Not a Honda.
>
> That said, if you're going 70 mph and it (thermostatic clutch) causes
> the fan to come on, most likely you either have too little radiator or
> its plugged.
>
> JT
>
>
>

No kidding.When the thermostat on my Integra stuck open,just going 20 mph
would cool the motor down to the C line(well below normal),In hot Central
Florida,in the summer.

--
Jim Yanik
jyanik
at
kua.net

 

Jim Yanik wrote:
> Grumpy AuContraire <Grumpy@ExtraGrumpyville.com> wrote in
> news:VGKZh.94257$VU4.23174@bgtnsc05-news.ops.worldnet.att.net:
>
>
>>
>>Hachiroku 繝上メ繝繧ｯ wrote:
>>
>>
>>>On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>>
>>>
>>
>>snip
>>
>>
>>>>the fans don't work on the highway - airflow from car movement
>>>>exceeds airflow from fan rotation by a country mile. if you were
>>>>boiling, you had airflow restriction, thermostat problems or a gasket
>>>>problem.
>>>
>>>
>>>LOL! You come to Mass on a hot July day, and I'll take you for a
>>>ride. At 70MPH on the highway, when the fan kicks in it sounds like a
>>>B-17 trying to pass you! Oh, yeah, the fan kicks in! (It's attached
>>>to the crankshaft...not electric, and uses a heat-sensitive oil that
>>>thickens when hot and causes the fan to be driven, rather than just
>>>'feathering'.)
>>>
>>
>>
>>This is new to me... A fan attached to the crankshaft??? What is
>>this vehicle?
>
>
> Not a Honda.
>
>>That said, if you're going 70 mph and it (thermostatic clutch) causes
>>the fan to come on, most likely you either have too little radiator or
>>its plugged.
>>
>>JT
>>
>>
>>
>
>
> No kidding.When the thermostat on my Integra stuck open,just going 20 mph
> would cool the motor down to the C line(well below normal),In hot Central
> Florida,in the summer.
>


....which is a whole lot better than it stickin' closed!

<G>

JT

 

Jim Yanik wrote:
> Grumpy AuContraire <Grumpy@ExtraGrumpyville.com> wrote in
> news:VGKZh.94257$VU4.23174@bgtnsc05-news.ops.worldnet.att.net:
>
>
>>
>>Hachiroku 繝上メ繝繧ｯ wrote:
>>
>>
>>>On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>>
>>>
>>
>>snip
>>
>>
>>>>the fans don't work on the highway - airflow from car movement
>>>>exceeds airflow from fan rotation by a country mile. if you were
>>>>boiling, you had airflow restriction, thermostat problems or a gasket
>>>>problem.
>>>
>>>
>>>LOL! You come to Mass on a hot July day, and I'll take you for a
>>>ride. At 70MPH on the highway, when the fan kicks in it sounds like a
>>>B-17 trying to pass you! Oh, yeah, the fan kicks in! (It's attached
>>>to the crankshaft...not electric, and uses a heat-sensitive oil that
>>>thickens when hot and causes the fan to be driven, rather than just
>>>'feathering'.)
>>>
>>
>>
>>This is new to me... A fan attached to the crankshaft??? What is
>>this vehicle?
>
>
> Not a Honda.
>
>>That said, if you're going 70 mph and it (thermostatic clutch) causes
>>the fan to come on, most likely you either have too little radiator or
>>its plugged.
>>
>>JT
>>
>>
>>
>
>
> No kidding.When the thermostat on my Integra stuck open,just going 20 mph
> would cool the motor down to the C line(well below normal),In hot Central
> Florida,in the summer.
>


....which is a whole lot better than it stickin' closed!

<G>

JT

 

On Tue, 01 May 2007 17:21:57 +0000, Grumpy AuContraire wrote:

>
>
> Hachiroku 繝上メ繝繧ｯ wrote:
>
>> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>
>>
>>
> snip
>
>
>>>the fans don't work on the highway - airflow from car movement exceeds
>>>airflow from fan rotation by a country mile. if you were boiling, you
>>>had airflow restriction, thermostat problems or a gasket problem.
>>
>>
>> LOL! You come to Mass on a hot July day, and I'll take you for a ride.
>> At 70MPH on the highway, when the fan kicks in it sounds like a B-17
>> trying to pass you! Oh, yeah, the fan kicks in! (It's attached to the
>> crankshaft...not electric, and uses a heat-sensitive oil that thickens
>> when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>>
>>
>
> This is new to me... A fan attached to the crankshaft??? What is this
> vehicle?

I may be showing my age...I'm not sure if it's actually on the
crankshaft...(I'm sure it's not...)

>
> That said, if you're going 70 mph and it (thermostatic clutch) causes
> the fan to come on, most likely you either have too little radiator or
> its plugged.
>
> JT

Everything seems OK, but the previous owner sunk $1100 into the cooling
system...

 

On Tue, 01 May 2007 17:21:57 +0000, Grumpy AuContraire wrote:

>
>
> Hachiroku 繝上メ繝繧ｯ wrote:
>
>> On Mon, 30 Apr 2007 20:24:24 -0700, jim beam wrote:
>>
>>
>>
> snip
>
>
>>>the fans don't work on the highway - airflow from car movement exceeds
>>>airflow from fan rotation by a country mile. if you were boiling, you
>>>had airflow restriction, thermostat problems or a gasket problem.
>>
>>
>> LOL! You come to Mass on a hot July day, and I'll take you for a ride.
>> At 70MPH on the highway, when the fan kicks in it sounds like a B-17
>> trying to pass you! Oh, yeah, the fan kicks in! (It's attached to the
>> crankshaft...not electric, and uses a heat-sensitive oil that thickens
>> when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>>
>>
>
> This is new to me... A fan attached to the crankshaft??? What is this
> vehicle?

I may be showing my age...I'm not sure if it's actually on the
crankshaft...(I'm sure it's not...)

>
> That said, if you're going 70 mph and it (thermostatic clutch) causes
> the fan to come on, most likely you either have too little radiator or
> its plugged.
>
> JT

Everything seems OK, but the previous owner sunk $1100 into the cooling
system...

 

On Mon, 30 Apr 2007 21:04:00 -0700, jim beam wrote:

>> LOL! You come to Mass on a hot July day, and I'll take you for a ride.
>> At 70MPH on the highway, when the fan kicks in it sounds like a B-17
>> trying to pass you! Oh, yeah, the fan kicks in! (It's attached to the
>> crankshaft...not electric, and uses a heat-sensitive oil that thickens
>> when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>
> it comes on because it's just a "dumb" thermostat control, but it doesnt'
> mean it's contributing very much. how much additional airflow do you
> think is generated by 1 sq ft of fan vs 70mph on the full rad?


Brings the temp down on the gauge, keeps the car from overheating. I'd
say, enough!

 

On Mon, 30 Apr 2007 21:04:00 -0700, jim beam wrote:

>> LOL! You come to Mass on a hot July day, and I'll take you for a ride.
>> At 70MPH on the highway, when the fan kicks in it sounds like a B-17
>> trying to pass you! Oh, yeah, the fan kicks in! (It's attached to the
>> crankshaft...not electric, and uses a heat-sensitive oil that thickens
>> when hot and causes the fan to be driven, rather than just
>> 'feathering'.)
>
> it comes on because it's just a "dumb" thermostat control, but it doesnt'
> mean it's contributing very much. how much additional airflow do you
> think is generated by 1 sq ft of fan vs 70mph on the full rad?


Brings the temp down on the gauge, keeps the car from overheating. I'd
say, enough!

 

On Tue, 01 May 2007 17:49:48 +0000, Jim Yanik wrote:

>>> LOL! You come to Mass on a hot July day, and I'll take you for a ride.
>>> At 70MPH on the highway, when the fan kicks in it sounds like a B-17
>>> trying to pass you! Oh, yeah, the fan kicks in! (It's attached to the
>>> crankshaft...not electric, and uses a heat-sensitive oil that thickens
>>> when hot and causes the fan to be driven, rather than just
>>> 'feathering'.)
>>>
>>>
>>
>> This is new to me... A fan attached to the crankshaft??? What is this
>> vehicle?

It was late...you know, not electric...at the front of the engine...Old
School...

>
> Not a Honda.

'88 Supra...the Poster Child for Blown Head Gaskets...