hey guys...I put a 350 chevy together for a car and when you start it the engine will blow the rubber ring arround the oil filter and leak oil all over...any Idea....and I already tried to clean/change the stub that the oil filter screws on to...any help would be great..and thank you in advance
Ya beat me to it between 35 and 60 psi is normal at highway speed but can dip to 15 to 25 at a low idle but the good news is that it only takes 5 psi to float a crank and cam so no worries
ya the rockers have the breather in it..its a 1970 4bolt engine with full rebuild but reused pistons rod's crank...all cleaned and checked of course....the kit I bought had an oil pump with it...its not a racer just a dd motor so I oppted for a cheaper kit, because I'm broke...but as the saying goes"YOU GET WHAT YOU PAY FOR!" thank you very much guys...I have a good pump for another motor i will try to swap in and try it, again your life savers.
Is this a later style screw on oil filter or is it the older style metal filter can with long bolt and cartridge filter inside ? Either way, is there the possibility that the rubber gasket from a previous filter is actually stuck to the block surface and the new filter gasket cannot seal against it and will allows leak ?
Yea, except the reply of hers has nothing to do with the question asked And X2 on double checking to make sure the old gasket wasn't left behind. Seen it happen a few times.
X3...Just did that bonehead move on my friend's car. Left the damn old gasket on there without looking. Nice big oil spill on the shop floor, too...
My brother decided to change his oil once. Brand new concrete driveway. He calls me up almost crying because he had just turned his white concrete into an oil slick (he actually saw it backing out). I told him to check. Next words were "I hate you"
How do you figure? If the pump by pass is stuck/clogged the pump can make excessive pressure right now - up to 100 lbs and will blow the O Ring right out of the filter. I have seen this on new oil pumps more than once. I would drop the pump and check it if it were me.
yeah, if the pressure bypass on the pump is stuck it will blow the oil filter gasket. As well if you put just a tad too big spacer behind the spring on the bypass on a stock pump to give it some more psi...it will blow out the filter gasket when cold....I knew this guy once....
Happened to me once on a Ford 351... ran fine for 50 miles then BOOSHH all over the road, zero oil pressure. I stopped quick! Luckily no damage to the engine. Now when I spin off the old filter I double check that the rubber gasket is off, too.
wow! i am older than dirt, changed more than one oilffilter and yep! just recently pulled the old gasket gig. was running my 64 ranchero when i heard this noise and thought at first it was a radiator hose. fortunately was on way to parts store and shut it down before i blew it up but with lots of new topping for his parking lot. misery loves company sure felt really dumb!!!
not only have i seen rubber gasket blow out happen,i have seen filters blown out (exploded) and blown out round like a ball! and the rubber never blew on either!
buddy one time said, oh they need more oil pressure while we were overhauling a straight six we used to race, so with out us knowing he stretched the oil pump spring to much, started the motor and the filter shot like a cannon!!
It doesn't pay to buy Brand-X engine components, a good name brand is only a few bucks more most of the time. Most good parts houses only stock the good shit. Bob
Hmmm, another thread with the same issues today http://www.jalopyjournal.com/forum/showthread.php?t=474186
I would measure the pad the filter sits on !! Most blocks cast in 69 have a odd pad that requires a different filter mount. check by measuring the pad that the gasket contacts, if it only has a little contact it will blow the gasket. Last week or so I posted the same info as someone had the same issue. Van
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