valve adjustment - sherman lifters
what process do you use to adjust valve lash on these things, 302 stocker sherman lifters ,screw in stud w/poly locks. The card that came with them said .013 to.015, set to -.005. That was farily easy on the engine stand with dry lifters you could feel the .013 spring deperssion and with a dial indicator on the spring you could collaspe the lifter and backoff the .008 to get bach to -.005. Now the engine has been run and is in the car need to reset lash. The lifter now has oil under the cup, hard to feel the small spring depress and almost impossiable to get to each valve with a dial indicator. ther must a better way to do this.
ps excuse my typos and spelling not much at this keyboard thing thanks wayne hutton |
Re: valve adjustment - sherman lifters
Not to highjack this thread I to would like to know how these valves are adjusted in a sb stocker? TDC, EOIC, turn the pushrod method etc?
Thanks Robert |
Re: valve adjustment - sherman lifters
You think they are hard with screw in studs and poly locks, you should try it with the stock rockers and those #$@%!!! shims! I'm not convinced im even close.
|
Re: valve adjustment - sherman lifters
I set mine with a .002 filler gauge just like you would a solid cam. I'm sure someone will say that's not right but that's how I ran the silver car for years.
|
Re: valve adjustment - sherman lifters
Quote:
|
Re: valve adjustment - sherman lifters
I highly reccomend the EOIC method and turning the engine over with a wrench, not the starter.
Greg, you will probably find a zero lash, once the set screw is set, will yield .002" which is perfect in my book. I figured that out one day and couldn't believe the amount of time it saved. I had ARP adjusters and all 16 came out perfect. It was far more accurate (after testing with a go-no go method) than trying to get the feel with a .002" feeler gauge. |
Re: valve adjustment - sherman lifters
Quote:
|
Re: valve adjustment - sherman lifters
exhaust opening, adjust intake
intake closing, adjust exhaust |
Re: valve adjustment - sherman lifters
Quote:
|
Re: valve adjustment - sherman lifters
Cliff will tell you, you have to adjust them a couple of times to get them "dead on". I use a .004 feeler gauge and make the first run through as close as possible, setting them by firing order. i start the car, bring it up to temp. shut it off and pull the covers, run through the valves again, by firing order to double check. you may have to "cheat" the lock nut to snug some up. i have never found any too tightm only loose, but it could happen i guess. then after 1 or 2 passes at the track, i pull the covers again for a final check. you MAY find 1 or 2 this time. reinstall the covers and run it. I havent tried the EOIC method on these stocker style engines, but i havent had any trouble either.
Wade O |
Re: valve adjustment - sherman lifters
|
Re: valve adjustment - sherman lifters
I've tried every method there is and in my opinion EOIC by hand is the only way it is accurate on a stock eliminator style cam. I am not talking about other cams, just stocker cams as they have the most radical ramps and are much more "touchy" than any other ramp there is. I just do one cylinder at a time, front to back on each bank. I don't go anymore than approximately 1/3rd valve travel or movement and then make the adjustment.
|
Re: valve adjustment - sherman lifters
For you serious race car guys with gross duration figures in the 320 plus region you can use the firing order sequence but instead of adjusting the #1 valves at TDC #1 adjust the previous intake rocker and the next exhaust rocker. This ensures that the lifter is on the absolute base circle of the camshaft.
This is the info I was referring too. Sean |
Re: valve adjustment - sherman lifters
Quote:
This is the most accurate method, in the FO as prescribed by the S.A.E. in their manual. PS To Wayne Hutton, Contact us via e-mail or phone (no PM's please) for help with adjusting Sherman lifters. We not only have used them for years but are a stocking dealer. |
All times are GMT -4. The time now is 04:01 PM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.