Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: mshred]
#1638180
06/25/14 08:41 AM
06/25/14 08:41 AM
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Joined: Mar 2006
Posts: 9,882 MI, usa
dvw
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Joined: Mar 2006
Posts: 9,882
MI, usa
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Quote:
So some of you might rememeber my lengthy thread from not too long ago about my very low oil pressure issue. I ended up tubing my block as per the mopar performance manual, got it all cleaned up and assembled and went to go prime the engine on the stand today. The only changes I made were- tubing the block, removing the restrictors I installed feeding the rocker shafts in the Indy heads, and removing the high pressure spring from my high volume pump and re-installing the standard pressure spring.
Using a quite weak air powered drill, pressure pegged the 100 psi on the gauge instantly, with little to no drop at all. Oil is getting to the heads and draining back sufficiently. I am thinking that possibly now with the lifter gallery tubed the oil pressure is much higher since there is less area for oil to bleed out/fill in.
Has anybody had this issue before? I am certain the cup plug was installed the correct way on the oil pump. At this point I am going to try installing the standard volume pump, but just wondering if this is normal after tubing the block and if it could be something else I have looked over?
My 572 had oil psi issues last year. Running a B/B the I have the luxury of an adjustable bypass spring. My engine push rod oils. The oil feed holes in my lifters were epoxied. Reducing the 2 feed holes from .110" to one feed at .040". It was necessary to turn the adjuster back .200". It runs 5w/30 oil, .003" bearing clearance and shows over 100psi at start-up. However after warmed up (oil temp over 100) it holds 35-40 at idle and 60 through the traps. Don't condemn the pump until you test with warm oil. Doug
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Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: mshred]
#1638186
06/25/14 01:27 PM
06/25/14 01:27 PM
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Joined: Jan 2003
Posts: 75,094 A Banana Republic near you.
JohnRR
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I Win
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Posts: 75,094
A Banana Republic near you.
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Quote:
At this point I am going to try installing the standard volume pump, but just wondering if this is normal after tubing the block and if it could be something else I have looked over?
Pressure is a restriction to flow , so it only makes sense that once you fixed that massive oil leak that is the mail galley running thru the lifter bores that your pressure shot up.
Did you put holes in the tube to get some oil around the lifters ?
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Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: mshred]
#1638187
06/25/14 01:57 PM
06/25/14 01:57 PM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
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Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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STandard volume pump first.
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: justinp61]
#1638192
06/26/14 12:26 AM
06/26/14 12:26 AM
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Joined: Aug 2003
Posts: 4,699 On the parachute mount
n20mstr
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On the parachute mount
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Heat the oil on your stove, check the temp get it to about 120 or 150. Dump it in the valley then try it
....BAD A$$ STREET CAR.....
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Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: mshred]
#1638195
06/27/14 12:42 AM
06/27/14 12:42 AM
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Joined: Nov 2004
Posts: 3,544 Syracuse,NY
CompWedgeEngines
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master
Joined: Nov 2004
Posts: 3,544
Syracuse,NY
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Yep..
RIP Monte Smith
Your work is a reflection of yourself, autograph it with quality.
WD for Diamond Pistons,Sidewinder cylinder heads, Wiseco, K1 rods and cranks,BAM lifters, Morel lifters, Molnar Technologies, Harland Sharp, Pro Gear, Cometic, King Engine Bearings and many others.
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Re: UPDATE- High oil pressure after tubing lifter gallery
[Re: CompWedgeEngines]
#1638196
06/27/14 12:44 AM
06/27/14 12:44 AM
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Joined: Apr 2009
Posts: 3,425 Toronto
mshred
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OP
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Quote:
Yep..
Thankfully it was an easy fix and I did it on the stand instead of fighting with it all in the car.
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