Quote:
Originally Posted by Jimboscr
I don't think its the pressure relief valve because there was no problem for the 1st 40 hrs and I have tried adjusting it. It made a little change to the overall pressures but nothing like the amount needed. Also that doesn't answer why the oil takes so long to heat up, and the fact that the pressure problem improves as the oil gets warmer. I attempted to get the vernatherm out to test it but I don't have the correct size tool. It is bigger than the 1" socket I have so does anyone know the correct size?
Thanks for the help and suggestions so far It is helping me run through and organize my thoughts on what might be happening.
Jim
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If the engine is now taking longer to get up to normal oil temps than it used to, that would be a sign that more oil is flowing through the cooler during warmup. The most likely suspect is a vernatherm that is stuck extended, which is not the typical failure mode. Test results would be similar, no extending of the vernatherm when introduced to 200* fluid (measurements will be required to determine if failing to extend or stuck extended, but symptoms would point you to stuck extended). I can't help but wonder if a restricted screen or filter would force more oil past the cooler with the vernaterm open. It is set up as a bypass and it would seem that a restricted filter "could" introduce more flow through the cooler, but doesn't seem likely (would need to solicit advice of someone with more practical experience). This is something to consider if your vernatherm tests good.
I just used a large crescent wrench to remove the vernatherm. It should not be tightened with too much torque.
Larry
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