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Running cold 140-160

uid 17648's pic
posted by  Shifted on  Thu Apr 12 14:39 CST 2007
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last visit: Sat Nov 19 19:05 CST 2011
[RELATED]

"the engine temperature is always between below C to 1/4 above C in the temp gage range (temperature is colder the faster I drive)."

That sounds like you are running too cool; your thermostat should keep engine temperature stable regardless of speed (basically).

A cold engine will not run as 'tight' as a hot one due to larger cold clearances between the parts, this is by design as if the engine fit tight when it was cold it would seize tight as the pistons warmed and expanded relative to the bores. Witness engines that do smoke when cold then stop; heat has expanded the pistons enough in a severely worn engine to stop the smoking. It could be that as yours is not fully warming up, the extra clearance is never filled, allowing a bit of oil to slip by.

If yours doesn't smoke at all I'd say it's not in so bad shape, yet. A compression test would tell you volumes...

If you are getting flow through the radiator when the engine is cold you need to change the thermostat.


--
Scott
--------1993 945 GLT 74,000--------1973 Suzuki Jimny 'Brute' 61,000--------






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