05-27-2009, 07:07 AM
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CC Member
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Join Date: Jul 2005
Location: Bartlett,
Ill
Cobra Make, Engine: Everett-Morrison LS1
Posts: 2,448
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Not Ranked
Calbullet--
In 1992, GM went to Mobil one in the LT engines in the Corvette--It ran cooler by enough that they were able to remove the oil coolers from the cars----
In the Cobras out there being street driven with hugh oil pans, external filters and coolers, the oil is not getting to the temps it needs to be(above the boiling temp of H2O) and combined with big cams( poor vacume) too large carbs(poor vacume) poor or no PCV or crankcase venting, finned valve covers (cooling) the engine is acting like a still, making liquid, and it is condensing on the valve covers and poluting the oil.
There may be leaks causing some of the problem, but a leak is a leak, and poor crank case venting along with not enough oil temp will have condensation and milk shakes.
If you don't believe it, OK, if you don't have the problem fine, but I have seen this hundreds of times on these type vehicles---and they all share the same symphons and react the same to proper corrective actions---
UNDY---- keep us advised of the manifold leak---we just recently had an Edelbrock that had an external seepage by the thermostat/bypass hose area.
Jerry
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