Gold Lifetime Member
Join Date: Jan 2005
Location: 2 Dog Town in West Texas
Re: Ideas for a better oil filter seal?
A motor built by a drag racer is concerned about getting oil constantly and filtering it totally.
I suspect the oil filter adapter is mechanically plugged, by that I mean there is either no bypass on the block adapter or its been drilled and tapped with a plug. We are talking about the block mounted filter here , right? As some real deep racers may add an externally plumbed additional filter mounted else where in the engine bay. So I presume we are not talking about that.
First thing I would , is pull that filter and look for a little relief hole with a fiber disc that is spring loaded. If its not there or you see some type of plug or even a plastic plug, then this may be part of your problem.
I ran this plugged bypass on my street car , to ensure that all my oil , goes thru the filter. With a stock unplugged adapter , this allows for oil to bypass the filter element and go straight to the bearings. The stock adapter was put there for people that don't change there oil or don't care about their motor or car.
When I ran this plugged adapter, my hi volume pump was always pegging 75-80 psi and that was hot, it was worse in winter and I ran 20-40wt oil for my area.
I finally pulled that bypass off as I felt one day I would pop the filter gasket, as you are doing. These stock bypass oil filter adapter are available from any GM dealer and are cheap. I have several in my tool box, including the one that is plugged.
So, that's my 2¢
TC # 349
Zdld17:69 Z/RS,306, NOR141111, 9N554XXX, 12A, X3G, 59/59,723, AFR 195,CCC282/290HR, TKO 600, BU1122B1E Owner since Dec 1968
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