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View Full Version : 580CI Chevy need help



FORCEINU
07-29-2005, 09:11 PM
My motor seems to be puking oil out of the valve covers.
as I have been reading here I learned that my oil temp. is not even close to what it should be I'm only getting to 140.
Another question is how much water pressure should I be getting to my water pressure gauge I get 17psi at about 4500rpm
Im' running 1471 littlefield blower with superchiller w1150dominator do I need to run a water regulator so I dont make alot of pressure could that be my problem.
Thank you for your help.

RACER52
07-30-2005, 01:49 PM
17 psi is fine..
how much boost?? I had oil pushing out the breathers until I put the tall teague's on.. Lots of boost will help the oil up, so its gotta breath.

Wicked Performance Boats
07-30-2005, 02:58 PM
Suck a quart or two of oil out of the pan and try it again. Budlight

FORCEINU
07-30-2005, 03:19 PM
I have the tall teagues on but I tried something different this time so I put them on the back I guess bad Idea...
I'm going to try to switch them around and see my results.
I'm running 9-1/2 percent overdriven I see about 5-7 pounds of boost
at 4800rpm so I haven't ran the boat at full throtle yet.
what kind of exhaust temp. should I see out off my eddie marine manifolds
I'm taking the reading out of the top of the manifold on the tailpipe.
Thanks.for your help. :idea:

blowngas
07-31-2005, 06:58 AM
you will always get some blowby on regular rings when running a blower----with extra air trying to get out of the crankcase thru the breathers, it will carry some oil along with it----keeping the breathers towards the front will help----if you have a fuel pump block off plate on your engine, a big help would be to run a external hose from there up to a valve cover to let the crankcase pressure vent out there and let the oil from the top drain back down and not get carried out the valve cover breathers---plus you will be doing your oiling system a really big service

Huffer
07-31-2005, 09:49 AM
RUN A QUART LOW ALWAYS,I PUT THE TALL BREATHERS ON MINE AND TOOK CARE OF THAT PROBLEM LAST YEAR!!!!!!

Wicked Performance Boats
07-31-2005, 08:24 PM
If you have blowby, you need to do a leakdown check. any good motor should have very little crankcase pressure. It's a sign of bad ring seal. Either the motor is worn or has a bad engine build. Budlight

pleasantcat
08-01-2005, 09:57 AM
you will always get some blowby on regular rings when running a blower----with extra air trying to get out of the crankcase thru the breathers, it will carry some oil along with it----keeping the breathers towards the front will help----if you have a fuel pump block off plate on your engine, a big help would be to run a external hose from there up to a valve cover to let the crankcase pressure vent out there and let the oil from the top drain back down and not get carried out the valve cover breathers---plus you will be doing your oiling system a really big service
do you happen to have a pic of this set-up? im runnig 2 peice eickert covers on my blownbbc with k&n breathers.i had the same problem and no i wont run a quart low :devil: instead i tied a shop rag around each one like a bandana. they have 50% covered but still breath. that cured my oil problem though. i think it slowed down the velocity of the vapors enough to allow the oil to cling. my .02

blowngas
08-01-2005, 12:28 PM
I don't have any pictures of it, but there are some in the Titan oil pump flyer discussing it-----they even have a pricy block off plate with an AN fitting attached for sale-----you can make one easily by drilling a hole in a block off plate--install a bulkhead fitting in it----or make a fancy aluminum one, drill and tap a hole and use a pipe thread/AN male fitting----drill a hole on top of valve cover and do the same---install an oil resistant hose cut to length with a AN 90 deg female hose fitting on each end----don't drill the hole any larger than you have to---use an O-ring on the outside to keep any oil from getting past the backing nut