Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: galen]
#3289447
02/14/25 03:51 PM
02/14/25 03:51 PM
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Joined: Mar 2006
Posts: 10,210
MI, usa
dvw
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I Live Here
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MI, usa
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It's strange to me about oil pressure loss based on a block. My wedge is a mega block with bushed lifter bores (.060" hole). Using .0027 rod, .0029" main clearance. isky Red Zone lifters, T&D rpaired rockers. Even when the bushings were worn and very sloppy .0025-.003" clearance. Feeding .050" orifice push rods the oil pressure was no issue. 25psi hot at idle, 70 psi at speed. this is using 5w25 oil. With the bushings tightened up its 40psi / 80psi with the same oil. Melling high volume pump. With the high pressure spring trimmed by one coil.
Doug
Last edited by dvw; 02/14/25 03:53 PM.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: galen]
#3289453
02/14/25 04:04 PM
02/14/25 04:04 PM
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Joined: Jan 2003
Posts: 14,615
So. Burlington, Vt.
fast68plymouth
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So. Burlington, Vt.
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I’ve never used Jesel lifters, but if they have “metered” oil to the feed for the pushrod then I wouldn’t worry about it.
If the pushrod feed has full access to the pressure feed from the oil gallery, you could possibly get enough leakage between the lifter and the pushrod when the lifter is on the base circle to matter.
With lifters like the BAM’s, that have edge orifice pushrod oiling, you’re never going to get that much oil going to the pushrod seat.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: fast68plymouth]
#3289665
02/15/25 01:59 PM
02/15/25 01:59 PM
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Joined: May 2009
Posts: 884
Missouri
galen
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Missouri
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I’ve never used Jesel lifters, but if they have “metered” oil to the feed for the pushrod then I wouldn’t worry about it.
If the pushrod feed has full access to the pressure feed from the oil gallery, you could possibly get enough leakage between the lifter and the pushrod when the lifter is on the base circle to matter.
With lifters like the BAM’s, that have edge orifice pushrod oiling, you’re never going to get that much oil going to the pushrod seat. These chevy lifters show the edge orifice oil hole in the exact same spot as mine. The KB block has the lifter oil passages on the cam tunnel side of the lifters. It puts my edge orifices directly in the oil galley. I appreciate the replies. I'm leaning towards the Bams made for the KB.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: galen]
#3289687
02/15/25 03:01 PM
02/15/25 03:01 PM
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Joined: Jan 2003
Posts: 14,615
So. Burlington, Vt.
fast68plymouth
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Sounds like those holes would have direct access to the pressure feed. No good.
My understanding is that the Koleno blocks also oil that way.
I know someone using one of those Koleno blocks with the lifters having the same PR oil feed as your pic and running T&D rockers.
It just flooded the top end with oil.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: fast68plymouth]
#3289690
02/15/25 03:27 PM
02/15/25 03:27 PM
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Joined: Jan 2003
Posts: 4,404
Morrow, OH
markz528
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master
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Morrow, OH
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I have no idea on the oiling on these motors. But on my B1MC motor, had way too much oil going to the top. I have Isky lifters. Tony Bischoff (BES) tig welded one of the holes on each lifer and problem solved. I should have payed better attention........
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: galen]
#3289691
02/15/25 03:36 PM
02/15/25 03:36 PM
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Joined: Feb 2008
Posts: 752
Central TEXAS!!!!
sr4440
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Central TEXAS!!!!
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I had the same issue with my BAM lifters, the oil hole is facing the center. I called Brad, and he told me that Indy uses a tall ford (oil on the side) .903 lifter with a Chrysler link bar. FYI, when I primed mine with the valve covers removed, it shot oil about 12 feet.
Without Data, you’re just another guy with an opinion.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: sr4440]
#3289696
02/15/25 04:03 PM
02/15/25 04:03 PM
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Joined: Oct 2005
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Ontario, Canada
Stanton
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Don't question me!
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Ontario, Canada
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FHO says run two .060 restrictors at rear of block to prevent oil pressure issues. Hmmm ??? At the back of the block will only restrict oil to one bank of lifters since the main passage from the pump is at the front of the block. Could he have meant restrictors in the passages up to the rockers - that makes more sense on a "full time oiling" block.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: Stanton]
#3289729
02/15/25 05:54 PM
02/15/25 05:54 PM
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Minnesota
Hemi_Joel
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Minnesota
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I was told by Isky that the oil hole in the lifter does not need to line up with the oil hole in the block or bushing. The oil pressure in the lifter to bore clearance is enough to pressurize the oil passages in the lifter through its oil hole on the o.d. of the lifter body. I also have Stage V rockers that oil through the shafts and do not need push rod oiling. What I have done on both Isky and Morrel bushed lifters is plug the upper hole in the lifter body that feeds the push rod cup with JB weld. It works fine, never have had it fail.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: Stanton]
#3289757
02/15/25 07:29 PM
02/15/25 07:29 PM
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Joined: Feb 2008
Posts: 752
Central TEXAS!!!!
sr4440
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super stock
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Central TEXAS!!!!
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FHO says run two .060 restrictors at rear of block to prevent oil pressure issues. Hmmm ??? At the back of the block will only restrict oil to one bank of lifters since the main passage from the pump is at the front of the block. Could he have meant restrictors in the passages up to the rockers - that makes more sense on a "full time oiling" block. There are two pipe plugs per side at the back of the block, the outer one stops oil from leaking, the inter one is normally used to restrict the oil to the lifters. KB blocks have a priority oil system, meaning the oil goes to all the mains, then up the back of the block, then to the lifter passage way on both sides.
Without Data, you’re just another guy with an opinion.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: Hemi_Joel]
#3289772
02/15/25 08:23 PM
02/15/25 08:23 PM
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Missouri
galen
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Missouri
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I was told by Isky that the oil hole in the lifter does not need to line up with the oil hole in the block or bushing. The oil pressure in the lifter to bore clearance is enough to pressurize the oil passages in the lifter through its oil hole on the o.d. of the lifter body. I also have Stage V rockers that oil through the shafts and do not need push rod oiling. What I have done on both Isky and Morrel bushed lifters is plug the upper hole in the lifter body that feeds the push rod cup with JB weld. It works fine, never have had it fail. Thanks Joel. I was curious if I could block just the pushrod oiling passage. It is the only passage directly in the oil galley. I would of just bushed the block but my local source for getting it done passed away.
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Re: Using Jesel lifters with pushrod oiling when not needed ques
[Re: galen]
#3289900
02/16/25 03:27 PM
02/16/25 03:27 PM
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Joined: Aug 2005
Posts: 786
Southington Ct.
turbobitt
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Southington Ct.
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KB hemi block. Lifter bores no bushings. Full time oiling. FHO says run two .060 restrictors at rear of block to prevent oil pressure issues. I have a new set of Jesel KTL-S905820-50 lifters I have had new on the shelf for a few years. These are pressurized oil to axle and pushrods. Called Jesel they said do not restrict any oil to these. My question. I am running stage v rockers. Ball and cup so do not need pushrod oiling. Will it be an issue to run them with an undrilled pushrod? I'm concerned about excess oil leakage. Or would putting these back on the shelf and running something like a DLC coated steel bushing lifter without pushrod oiling be a better option?. Which I will order through a member here if I go that route. I have not ordered pushrods yet so now is the time to make a decision. This is a street car that will be driven mainly weekends. But it will be driven hours at a time.. Always appreciate any advice. Galen Smith Brothers advised me to NOT run drilled pushrods with a Hemi ball and cup rocker. There reasoning was that the oil hole will actually pull oil away from the tip. The solid cup on the pushrod acts as a reservoir holding oil for lubrication. I stuck to there advice and never seen any burnt pushrod ends. AG.
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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