adjusting new hyd lifters
Thread Starter
Pro
Joined: Dec 2006
Posts: 665
Likes: 0
From: wilmington nc
adjusting new hyd lifters
I got several books and they all have different methods for adjusting new hyd lifters. Actually i dont think none of em know what there talking about!!!! As long as the lifter is on the base circle (off the lobe ) can i adjust them at that point?
Melting Slicks
Joined: Dec 2000
Posts: 2,130
Likes: 1
From: mesa,az
last couple engines I put together with hydraulic lifters I just tightened them till I I hit spring pressure,then went another turn. Then as soon as I started the motor I backed each one off till I heard it clattering and brought it back to zero. When I was done with a side I turned it off, took up a half turn, ( or a quarter depending on what engine I was on ) and went and did the same thing on the other side.
Racer
Joined: Jan 2005
Posts: 332
Likes: 7
From: In the shop most of the time,,, And it BEER TIME somewhere
Thread Starter
Pro
Joined: Dec 2006
Posts: 665
Likes: 0
From: wilmington nc
ok i got it now, chevy"s dont turn the same direction as dodge"s do when there running! sorry guys been around dodges a little to long i guess. Did you know if your turning the motor over backwards , when the exhaust valve starts to move the intake is still half open
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,391
From: At my Bar drinking and wrenching in Lafayette Colorado
Burning Brakes
Joined: Feb 2006
Posts: 1,024
Likes: 1
From: AL
i heard a rumor that "smokey" built one to run backwards (ccw looking from front) for a nascar race: nail it - left side digs down instead of up. but nascar outlawed it so it never ran a race. not sure if story is true . . . always wondered
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Le Mans Master
Joined: Mar 2004
Posts: 7,502
Likes: 1,509
From: Little Rock AR
Snug them ALL a half turn past zero up-down play, rotate engine 360 degrees, snug down the ones that are now loose. It makes perfect sense but nobody believes me. Been doing it that way for years but I do not advise anyone else to do it. It only works for me.
-Mark.
Drifting
Joined: Aug 2004
Posts: 1,883
Likes: 124
From: Lubbock TX
I always get #1 to TDC on compression stroke, adjust both valves at the same time. Turn the engine over 1/4 turn, then adjust #8. Continue around the firing order until you're done. This way, you're sure not to miss anything. I adjust mine 1/2 turn past zero lash, it's always worked fine for me.
Le Mans Master
Joined: Oct 2001
Posts: 5,943
Likes: 3
From: Wildwood IL
Just some info that might help::
I have a Crower hydraulic roller. Crower recomends .030 to .060 lifter preload. At zero lash, I put a dial indicator on the pushrod end of the rocker and slowly tightened till it read .045 (middle of recomendation). It took 1/2 turn plus another 1/8 (5/8 turn)
1/2 to 3/4 turn is all I would tighten yours.
Eddie
I have a Crower hydraulic roller. Crower recomends .030 to .060 lifter preload. At zero lash, I put a dial indicator on the pushrod end of the rocker and slowly tightened till it read .045 (middle of recomendation). It took 1/2 turn plus another 1/8 (5/8 turn)
1/2 to 3/4 turn is all I would tighten yours.
Eddie
Thread Starter
Pro
Joined: Dec 2006
Posts: 665
Likes: 0
From: wilmington nc
I went with the one cylinder at a time method,rotate engine when the exhaust starts to move adjust the intake,rotate engine when the intake completely opens and is almost closed adjust the exhaust. Works fine if your turning the engine the right direction!