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Author Topic:   oil pressure
AC156
Dirt Freak

Total posts: 295
posted August 31, 2002 09:21 AM
last night during the feature i looked at the oil pressure gauge and it was at 40lbs all the way around the track. usually it was about 60-70lbs. after it cooled off it was about 50lbs at idle..and i could rev it up and it would go to 65-70lbs. the water temp was about 190 when i was out there running and the car didnt seem like it was losing power. what is causing the oil pressure to drop? any ideas? the track was pretty tacky last night.

dirtracer14
Dirt Freak

Total posts: 499
posted August 31, 2002 11:23 AM UIN: 23443678
Was it new oil? My car will do that if its a hard night of racing, im thinking that the oil is breaking down when it gets hot and its time for a change after changing it is fine.

AC156
Dirt Freak

Total posts: 295
posted August 31, 2002 02:03 PM
this afternoon we let the water temp get up to about 215 degrees and i ran it down the road and got up to about 5900 rpm and the oil pressure was at 70lbs. maybe it was just the oil like you said. do you think it would be ok to run next week after an oil change?

dirtracer14
Dirt Freak

Total posts: 499
posted August 31, 2002 02:08 PM UIN: 23443678
I have had oil do that before somtimes it seems that if you really run it hard the presure would drop some ....after oil change would be just fine. Good luck at the races.

dirtracer7
Dirt Maniac

Total posts: 106
posted September 01, 2002 11:15 AM
AC if your concerned about runnin make sure your oil filter looks good .If you don't see any signs of problems run the fresh oil and check it out.

outlawstock17
Dirt Forum Champ
Total posts: 620
posted September 01, 2002 12:35 PM
one area that most grass roots racers overlook is an oil cooler. i've had the same problem that you have. the oil was getting so hot that it was cracking the sticker on my mobil 1 oil filter. if you have access to a pyrometer, point it at the oil pan after a feature race on a hot summer night. you'll get scared when you see how hot it is. you'd be surprised how many engine failures are a result of the oil not being able to do its job adequately because it gets too hot. overly hot oil can't maintain the correct clearances in the bearings resulting in failure. not only does the oil lubricate the engine, it also helps to cool it. an oil cooler is cheap insurance against premature bearing failure.

AC156
Dirt Freak

Total posts: 295
posted September 07, 2002 04:58 PM
you were right. I changed the oil and the pressure was fine all night. thanks.

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