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StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

Hey guys, Lately, it seems like my car has been getting too hot. I havent even been pushing it hard at all. I have been driving in traffic, but I have not been stopped for long periods of time, and its hot, like one bar abouve halfway. Is that normal?

What can I do to fix it? Would it help to flush the system, and start with new? Or could I need a new pump or sometihng?

Ryan
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1978 924 NA
-250lb lowering springs, Euro Pistons

Chrenan · Joined: 15 Jan 2003 Posts: 3903 Location: Canada

Have you checked your thermostat? They can break, the one in my car was broken when I got it.
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1987 951 - M193 Version for Japan

Ozzie · Posted: Wed Sep 06, 2006 7:18 am Post subject:

Rad fan or switch working ok?
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

Is it hot outside? Is the car displaying other symptoms or overheating, like detonation ("pinging") or coolant loss?

I doubt it is a problem. . .not only does the stock gauge system suck, but the manual says this:

StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

Maybe it is the fan. I have only heard it a few times. Also, the previous owner told me the thermostat is leaky.

Ryan
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1978 924 NA
-250lb lowering springs, Euro Pistons

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

JB 924 · Joined: 03 Apr 2006 Posts: 606 Location: Hessen, Germany

Blas · Joined: 05 Nov 2002 Posts: 227 Location: Illinois, USA

Have you checked for an air pocket in the system? Especially if someone checked the thermostat and did not bleed the air out. Also, if you have any persistant coolant leakage, you should check for air pockets regularly.....my old expansion tank had a pin-hole leak and after a period of time air entered the system which gave me a warmer than usual temp reading occasionally. Replaced the tank, refilled and it's running as cool as a cucumber.....
Hope this helps....

morghen · Joined: 21 Jan 2005 Posts: 9102 Location: Romania

i have the exact inverse "problem"...if i dont put the engine under load and i cruise around 2000-2500 RPM in 5th gear the engine stays on the white spot. and never heats up. If i drive at 3000RPM the needle goes on the first white stripe fron the left. However if i drive the car in the city(heavy trafic) the needle jumps to the midle of the gauge...it goes 1 mm over the white centred stripe then the fan kicks in and cools the engine. Its kinda weird of how the coolant temp(and engine temp) fluctuates that fast and easy at these cars.
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Supercharger and EFI kits
https://www.the924.com

Aussie931 · Joined: 28 Aug 2006 Posts: 55 Location: Canberra

Do you have any crud in your coolant. If you or previous owners haven't used the correct coolant/water mix, it doesn't take long for the coolant pipes and/or radiator to clog up with garbage. If there is a sign of calcification in your pipes or coolant tank then it probably suggests that your radiator cores are also clogged. This is a pretty common reason for older cars to overheat. You can try flushing the system, but the only real way to sort it out is to remove the radiator and take it in to a radiator specilaist for a flush. leak test and, if necessary, repair.
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1979 Series 1 924 turbo

StienbargerR · Joined: 28 Oct 2005 Posts: 1362 Location: Richmond, IN

Hmm, I added some more cooland the other day and it solved the problem. I feel sort of stupid. I thought it was at an adequite level. Im going to keep and eye on it though....I think that might just be a temporary fix.

Ryan
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1978 924 NA
-250lb lowering springs, Euro Pistons