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Old 09-01-2010, 07:23 PM
dlotz dlotz is offline
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Join Date: Jun 2006
Location: Kalamazoo, mi
Cobra Make, Engine:
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Default A few oil related questions/conserns.......



I have a question about excessive smoke out of the pipes at idle and oil pressure.

OIL PRESSURE:
ok, so we took the car out on the road for the first time after paint. Previously (during go carting) I would take short 5 minute drives and the oil pressure stayed right around 80 psi.

Today we went on a 35 minute drive and in 4th / 5th gear with the foot on the gas I was running about 100psi. Foot off the gas I was at 80 psi. But when I would be at idle at a light (1200 rpm) my oil pressure dropped down to 45 psi and sounded like the engine was going to stahl without a little gas to bring the rpms up.

SMOKE OUT OF THE PIPES:
At start up I get a lot of smoke out of both pipes and a pool of oil coming out of the pipes as well. After warm up during running I dont see smoke, but when I idle I see a little more smoke. If I shut the car down to get gas and try to restart it 5 minutes later, it is very hard to turn over. Almost like it is flooded and has to crank out excess pressure to breath and start. After 30 minutes of driving I pulled into drive way I was still getting heavy smoke out of the pipes.

Could I have too much oil in the system causing high pressure and oil leaking into exhaust?

Is the oil cooler keeping the oil heavy, making higher pressure in the system?


here is the set up:
1965 427 side oiler, 10:1 cratio, iron MR heads, new bronze valve guides, dual holley 4bbl carbs, Penn 20w50 green oil, mocal oil cooler with thermostat, avaid 9qt pan, oil vapor canister, pent roof valve covers without breather caps, solid lifter.... Everything fresh machined and assembled by a pro FE builder. Broke in on engine dyne and about 100 street miles.

Sorry for the long post.

Thanks

Dan

Last edited by dlotz; 09-01-2010 at 07:56 PM..
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