604 Oil leak.

[brad hibbard]

great advice Krooser but not practical-----that is why we use all -12 full flow ends, fittings and hose

it would be near impossible to plumb most modern day race cars with all straight or 45 degree fittings

-10 is an adequate size if everything is ABSOLUTELY perfect and that would be without any angle over 45 degree and ALL fittings were of a high flow design but to be more practical its easiest to jump up to -12 and be sure that oil flow is sufficient in all situations

this advice came to us primarily from Peterson Fluid systems but has been confirmed by other respected sources and our own expierience

Brad

[Krooser]

When running 100 lbs of oil pressure on our 351C engines (the hot set-up to keep 'em alive in the 80's) we blew the threads out of four block adaptors… two cheapys and two high quality ones (one from Jack Roush the other from Bud Moore). It took a neighbor who designed hydraulic systems to find the problem in 30 seconds… four 90 degree forged Russell fittings in our -12 lines.

We switched to a radius'd tube fitting and had zero problems in two years racing two nights per week.

[brad hibbard]

agreed ----that is actually what I am referring to when I say "high" or "full" flow

great point---thanks for posting

[CrateInsider]

Thanks for referring A Ron to the site, Brad!

[A ron]

Yeah I need all the help I can get haha

[Krooser]

Don't we all….

[A ron]

Think I found the leak. My timing cover seems to be loose and the bolt heads are about stripped. The cover is sticking out on the bottom to where part of it has been grinded off by the harmonic balancer. If I push in on the cover it actually moves in and out I'd say about 1/16 of an inch. I can't see a crack in the cover just from looking at it, but the way it moves it almost has to be. Guess I'm going to start pulling everything this afternoon. I have another dumb question. I see a way to loose the tension on the power steering but how do I loosen the tension on the 2 belt? Please forgive my ignorance.

[A ron]

Here's a photo of the bottom of the cover. I'll upload a video if how much it moves when I get to the office.

[A ron]

nevermind the site doesn't support video.