Melling 10778 oil pump question
#21
I didn't want to cut into crank since specs were ok, just all over.... is what it is but I would do different cranks next time...I was able to get real cheap pricing on Eagle that's why I used them. should have not done that..
#22
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Joined: Jul 2012
Posts: 1,248
Likes: 3
From: indianapolis
I`ve lost about 15 psi with spring oilers , 50ish psi wide open (have high volume melling pumps) . Bearings look fine but I get some anxiety when the pressure falls below 18 psi @ hot idle.
Looking into going with Schumann pumps this time around , or titan but those are some $$
Looking into going with Schumann pumps this time around , or titan but those are some $$
#23
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Joined: Oct 2007
Posts: 8,439
Likes: 93
From: yorkville,il
mains average .0032-.0035 with a .0040 rear, rods .0025-.0028 average, with Eagle it's all over, you remember the findings when we talked I am sure, I would have used Scat if I knew Eagle was like that at the time..
lifters are .0022 across the board.
I never see less then 25 at idle no matter what, always shows 70 when running with oil temps in 220 range
lifters are .0022 across the board.
I never see less then 25 at idle no matter what, always shows 70 when running with oil temps in 220 range
#24
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Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Everyone uses carb jets. The leakage from the oilers running wide open is way to much. Even when you "jet" them down they still spray oil like crazy...
#26
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Joined: Aug 2011
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From: bel air, md
#27
#29
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Joined: Jun 2009
Posts: 9,967
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From: Chicago
I need some clear valve covers :-)
#30
Might be a dumb idea, but how about when you reassemble it you run the pump off of a distributor priming tool run by a variable speed drill with no valve covers on? Then you could jet down your oilers to a point where you are comfortable with the spray and bring up your oil pressure. Lots of variables with regards to oil temperature and viscosity, but maybe you can learn something from the experiment.



