valve lash
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
No chart needed. Set #1 at TDC on the compression stroke, adjust #1 intake and exhaust. Rotate the engine exactly 90 degrees, go to the next cylinder in the firing order. Repeat (2 rotations) until you've done all 8 lungs.
Racer
Joined: Sep 2011
Posts: 258
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From: Columbus Ohio
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
There is, either the FSM or the Helms manual tells you how to set all 16 with a single rotation. I have used it but prefer Fracks method. Before I install a damper I mark 0-90-180-270 with paint, use those to insure valves are closed and lifters are on the base circle.
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
Manual will spell it out....I've just come to rely on doing them one at a time. Either way works fine.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
Bring the engine to TDC on #1 cylinder. Rotor pointing to #1 spark plug wire on the dist. cap and the timing mark on the damper lined up with the zero on the timing tab.
You can now adjust the rockers on:
# 1,3,4,8 exhaust valve and #1,2,5,7 intake valve.
When finished with those turn the engine one revolution on the damper so the timing mark again lines up with the the zero on the timing tab.
You can now adjust the rockers on
#2,5,6,7 exhaust valves and #3,4,6,8 intake valves.
Last edited by WW7; Dec 1, 2011 at 06:17 PM.
Melting Slicks
Joined: Nov 2005
Posts: 2,736
Likes: 0
From: WAY UPSTATE NY
Here is the way the Factory Service Manual says to do it . This is the method I used and have had no problems.The only thing I do differently is instead of spinning the pushrod, I move it up and down till all play is gone, this is a much more accurate method of getting to zero lash.....WW
Bring the engine to TDC on #1 cylinder. Rotor pointing to #1 spark plug wire on the dist. cap and the timing mark on the damper lined up with the zero on the timing tab.
You can now adjust the rockers on:
# 1,3,4,8 exhaust valve and #1,2,5,7 intake valve.
When finished with those turn the engine one revolution on the damper so the timing mark again lines up with the the zero on the timing tab.
You can now adjust the rockers on
#2,5,6,7 exhaust valves and #3,4,6,8 intake valves.
Bring the engine to TDC on #1 cylinder. Rotor pointing to #1 spark plug wire on the dist. cap and the timing mark on the damper lined up with the zero on the timing tab.
You can now adjust the rockers on:
# 1,3,4,8 exhaust valve and #1,2,5,7 intake valve.
When finished with those turn the engine one revolution on the damper so the timing mark again lines up with the the zero on the timing tab.
You can now adjust the rockers on
#2,5,6,7 exhaust valves and #3,4,6,8 intake valves.
..That is the method I have used for longer than I care to say..
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Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
If its a larger aftermarket solid cam do them one at a time
Set your cold lash, get it good and warm then check the hot lash setting.
Make sure you lash it as the cam card suggests, different cams will want different lash.
Set your cold lash, get it good and warm then check the hot lash setting.
Make sure you lash it as the cam card suggests, different cams will want different lash.
Last edited by cv67; Dec 1, 2011 at 07:28 PM.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
You can also set them while running with a feeler gauge, this is the way I use to set my small block years ago.This is probably the quickest , but also the messiest....WW
Last edited by WW7; Dec 2, 2011 at 05:01 PM.
Le Mans Master
Joined: Aug 2007
Posts: 8,735
Likes: 412
From: WV
....WW
Race Director
Joined: Dec 2000
Posts: 17,551
Likes: 26
From: El Paso Texas
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Capture an old valve cover, cut out the top to expose the rocker polylocks. Keeps hot oil in while adjusting.
Le Mans Master
Joined: Oct 2004
Posts: 6,314
Likes: 508
From: South-central Missouri
Well, actually some DO use the feeler gauge method while running. I bought little deflector clips to keep the oil from spurting out over the fenders (and not to mention headers!) and cut the upper portion of a valve cover off, leaving just enough to contain the oil so it wouldn't run over the lip of the head and run down the outside.
But, in the end, I never felt warm and fuzzy about doing it that way - besides still being so messy. So, I reverted to the cold then hot method, using Frizzle's method (wasn't aware of the one rotation method at that time).
P.
But, in the end, I never felt warm and fuzzy about doing it that way - besides still being so messy. So, I reverted to the cold then hot method, using Frizzle's method (wasn't aware of the one rotation method at that time).
P.
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
Ill stick with not possible on a solid. No way
How is one going to feel the "slight drag" when the cam is on the heel with the valvespring compressing x times/second, the feeler gauge getting the snot pounded out of it etc? Just cant happen
How is one going to feel the "slight drag" when the cam is on the heel with the valvespring compressing x times/second, the feeler gauge getting the snot pounded out of it etc? Just cant happen
Drifting
Joined: Jan 2007
Posts: 1,908
Likes: 3
From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa
Solids are adjusted best non-running. I always needed that special drag to keep them all as uniform as possible. I only tried hydraulics running once with the clippies and a hogged out valve cover, but the noise and mess were just too much.... I prefer the 2-rotation method, keeps my mind clear.
Thread Starter
Instructor
Joined: Aug 2008
Posts: 189
Likes: 0
From: petersburg il
Solids are adjusted best non-running. I always needed that special drag to keep them all as uniform as possible. I only tried hydraulics running once with the clippies and a hogged out valve cover, but the noise and mess were just too much.... I prefer the 2-rotation method, keeps my mind clear.
