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Registered
Join Date: Sep 2002
Location: LI, NY
Posts: 122
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Temp Gauge Reading?
My 83 944 temperature gauge needle always runs up to the middle of the gauge, (second bar of the three bars in the middle of the gauge).
Is this normal or should the temperature be lower? When the gauge begins to move past the second bar to the third bar, the cooling fans come on then go off when the gauge is between the first and second bar. Should I replace the thermostat with a 160-degree thermostat? I am also running just water in the cooling system. Trying to get out the entire oil residue caused by failed oil cooler seals. Your thoughts are welcomed. |
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10-24-2003, 05:59 AM
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Join Date: Sep 2003
Location: Littleton, CO
Posts: 161
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Sounds normal. Start to worry when the fans don't come on. You can't bleed the system enough.
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'87 924S , sold. '99 Subaru O/B, 62K on first timing belt. Could have gone another 40K. |
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10-24-2003, 06:55 AM
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Join Date: Aug 2001
Location: Brighton UK since 11/2012
Posts: 3,170
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The temp gauge on early 944 models is only a guide, accuracy seems to have been of secondary importance. As long as the fans cycle correctly, there is no coolant loss, and the radiator is warm over the complete surface I wouldn't worry. To check, use a temp gun and measure the engine at various points.
The oil residue can be removed by using a water soluble detergent in the cooling system; this will remove most of it. Flush a couple of times and then refill and bleed the system. Always use the proper antifreeze mix.
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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10-24-2003, 06:59 AM
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Join Date: Sep 2002
Location: LI, NY
Posts: 122
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Thanks for the responses. I have been running water and some detergent in the cooling system to remove all traces of oil. Most if it has been removed, but before I winterize the car I wanted to know if the thermostat should be replace.
The fan switch was replaced in the spring along with a host of other items including the belts. I do all my own work in the car and I have been able to bring it back to life from a non-running 944 to one that is fun to drive. Some new tires, repack the CV joints and an alignment will be the next items on the list before the winter sets in. Thanks again. |
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10-24-2003, 07:49 AM
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Join Date: Dec 2002
Location: St. Petersburg, Florida
Posts: 1,990
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Sounds about right to me.
I have been doing roughly the same thing as you on my 83.... I do tend to obsess on my temp guage a bit. Yours sounds really good considering you are only running water. Once you have the right mix in it should be right on. I wish I had a warning light that came on at the 3/4 mark so I can stop looking at that damn guage!
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83 944 white w/Boxster wheels Planned mods- custom leather interior, 968 antenna, soundsystem, 968 style rockers, clear sidemarkers
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10-24-2003, 08:19 AM
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Join Date: Jun 2003
Location: Phoenix, AZ
Posts: 1,327
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just water makes the temp run higher than an anti-freeze water mix.
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87 951, K27/6, Almond Beige, 17" Turbotwist 87 944S, alpine white, 5sp died a violent death 84 944, silver/brown, auto, gone but not forgotten "may the force be with you" |
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10-24-2003, 10:28 AM
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