Cooling System Q&A, Moderated By Howard Stewart

only 195 * ?

LSG — Wed, 12 Nov 2008 18:52:12 GMT

Howard, do you offer anything hotter than 195 ? I'd like a 205 or 215, ethanol seems to like a warmer engine than gasoline. Can you help out ? LSG

1960 Chevy Impala 348 water pump

Lee Major — Sun, 26 Oct 2008 23:44:25 GMT

Do you have a replacement water pump for a 1960 Chevy Impala with a 348 engine?

454 overheating

jessie baker — Fri, 10 Oct 2008 04:39:04 GMT

dear sir i have a 1982 gmc 3500 truck with a 454 in it on a recent trip the water pump failed and it overheated badly. it was running smooth when i shut it off and i allowed it to cool over time. i bought a new not reman water pump from a parts store and installed it the next day checked all fluids no water in the oil or oil in the water removed the thermostat started it up it ran fine but by the time i drove it 50 miles the temp guage registered 3/4 of the way hot steadily climbing. when i checked the coolant level it was totally full.so i went to an associate of the parts store totally confused and asked this guy who said he knew a lot about big blocks and he said i could have gotten a reverse flow water pump by mistake i was wondering if that would cause the steady increase in temp.i also installed a new fan clutch with the water pump witch i hate fan clutchs. any way i want to install just a sraight old fashioned fan he also said it could be a head or head gasket witch i cant believe as no oil in the water or water in the oil please help if possible any suggestion would be greatly appreciated.thanks jessie

water pump bearing

Ibrahim Cueto — Thur, 25 Sep 2008 15:41:05 GMT

Does anybody know what are the standard measuments of the bearing of the mechanical water pump for a 1957 6-cylinder Chevy BelAir?
I appreciate your help since I bought a new pump and it's got a weird noise. They say it's the bearing and I need it replaced.
Thanks in advance.

34 ford Temp creeps up

Bob Davies — Wed, 20 Aug 2008 23:03:15 GMT

I have a 34 ford with a small block Chev. 16 in. Electric puller fan with shroud.The temp runs around 180 for a while then starts to slowly creep up to as much as 230. Upon stopping the vehicle for just even 10 minuets it seems to drop back to the 180 and then starts the creeping again. The sending unit is in the head. This problem seems to have just started within the last year. The last couple of months the engine will puke out coolant after about 30 miles or so and then be fine.
The car is a driver in all types of weather with day time temps of 100.
Seems like I am just starting to have some cooling problem.

How Hot is Too Hot

Jim Collura — Mon, 11 Aug 2008 15:50:35 GMT

I have a 1940 Pontiac with a 350 Cu In Chevy motor and a Griffin Radiator. In the hot summer months in the south with the air conditioner running I'll see temperatures of 220-230 degrees F. I'm using a flex fan on the water pump and have a "pusher" electric fan in front of the radiator. The car never "pukes" even though it seems to be quite hot. I've been told, "if it doesn't puke, don't worry about it". I've also been told that since my sending unit is in the head, the temperature of the coolant is actually 20 degrees less the the Gage is reading. I'm running a 190 thermostat and in the cooler months, it never gets beyond this on the gage.
Any comments? Are the statements "Truth or hot rod fiction?"

Underdrive Pulleys

Will — Sun, 27 Jul 2008 18:04:08 GMT

There are several companies with underdrive pulleys that slow the water pump down. Is this a good idea?

Will

500 Cad overheating problem

Steve Bobst — Fri, 13 Jun 2008 12:18:56 GMT

I have a "built" 500 cubic inch Cadillac engine that I am running in a 1940 Chevy truck. I am running an Afco aluminum radiator to fit the stock location. I am using the cadillac 195 degree thermostat that blocks off the bypass when open. I believe the water pump is made by "Flow Kooler". I also have the stainless steel radiator hoses. I added a 4000 rpm fan and shroud from a Lincoln. It is the perfect size for the radiator and immediately brought my cooling temps down to 195, even on a 100 degree day in traffic. My problem is that I had been running a mostly open exhaust. I recently had a pair of magna flow mufflers installed. On the drive home from the exhaust shop, I noticed the engine temps rising again. 20 miles of highway driving brought it up to around 230 degrees. I also had the air conditioning system charged for the first time, but didn't run it due to cooling concerns. I may try drilling some small holes in the thermostat to reduce restriction. My two questions are: Would a triple pass radiator cool any better than the 2 core aluminum Afco that I have? Do you have any other suggestions that could help my situation?

Overheating With Edelbrock Pump

Leon — Wed, 04 Jun 2008 14:16:33 GMT

I have a 69 Camaro with a 383 small block, an Edelbrock water pump and 30% underdrive pulleys. The car overheats when cruising. Will your water pump fix this?

Robertshaw Thermostats

Keith — Thur, 22 May 2008 14:52:12 GMT

Where can I buy Robertshaw thermostats? Autozone used to carry them, now I can't find them anywhere.

Ford Pumps?

Robert — Tue, 20 May 2008 15:56:46 GMT

Do you have high flow water pumps for the Ford FE motor?

Same as EMP Stewart?

Mike — Thur, 15 May 2008 16:11:52 GMT

Is this the same company as EMP Stewart?