adjusting valves

1036 Views 12 Replies 5 Participants Last post by kenash, Feb 25, 2015

sp66stang

Discussion Starter · Feb 19, 2015

ok ive read all the post about adjusting valves. I have a hydraulic lifters and roller rockers. asking how others adjust theirs. I set mine at zero lash then half turn and had no compression so I left it at zero lash. compression before zero lash and after is 140-145 for each cylinder. cant load video but its on my profile. that's before I set them.

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sp66stang

Discussion Starter · #4 · Feb 20, 2015 (Edited)

ok Rick and Ivy, I know its strange have never had one like this before. the lifters are rhoads ive used them for years and love them. the rockers are Harland sharp gold series. heres how I did it.
1 spin engine over to get oil coming out the push rods so the lifter is pumped up
2 I go in firing order
3 on the compression stroke with piston all the way up and both valves closed I adjust
4 repeat for all eight

now I spin the push rod to I cant anymore, also cant wiggle rocker arm. im calling that zero lash. at that I still have 145 on the compression if I give get a 1/2 turn I get nothing.

ivy im trying not to do it running I got new paint every where and I make way to much of a mess.

I haven't started it since I set it got rad out to do some touch up will have it back in tonite and running so I can set the carb

snow here and going to alignment shop on Monday be the end of a 7 year project.

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sp66stang

Discussion Starter · #8 · Feb 21, 2015

ok going to do it with the engine running. I got several sets of old valve covers laying around. so I will cut one today and set it your way. I have no problems trying it a different way it the way we all learn. thank you for the help and will keep you posted.

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sp66stang

Discussion Starter · #9 · Feb 22, 2015

ok after some time and a big mess later I got them adjusted. I back them off to they rattled and then tighten them to the engine stumble which was about 3/4 turn then back them out halfway between the two. engine now runs smooth and tachs up easily. I load a video on my gallery of it running, I was still setting the new carb and its 20 degrees out. thank you for the help Rick and Ivy.
ps lost about 1/2 qt of oil on the floor, spent two hours cleaning the mess :heha:

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sp66stang

Discussion Starter · #10 · Feb 22, 2015

http://www.allfordmustangs.com/photopost/images/mm-qt.gif

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sp66stang

Discussion Starter · #12 · Feb 25, 2015

kenash said:
Another thought when the dust settles on your project,...
If the valves are set too tight, vacuum will be less, compared to being set too loose. Obviously, a "hotter" cam will make less vac than a stock cam.
When all is complete, do a vac check and compare with the grinder's specs. It'll provide an indication of the settings.
Good luck .....

thanks Ken my cam is not that hot, two steps up from stock, and I don't have anything using vacuum but that a good point you have. need to get a gauge to test just to have a reference, for future issues.

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