Solid Lifter Valve Lash Question
Thread Starter
Racer
Joined: Jul 2007
Posts: 444
Likes: 0
From: Roselle IL
Solid Lifter Valve Lash Question
I have a '69 427 (L-88 engine) on the '75 that I just bought. It has mechanical lifters and I would like to set the valve lash. Can anyone tell me what the recommended valve lash is for this engine?
I had the valve cover off to replace the gasket and to check the casting #'s on the head. One of the valves was quite looser than the .024 that I thought may be the suggested lash.
I would appreciate some guidance here.
I had the valve cover off to replace the gasket and to check the casting #'s on the head. One of the valves was quite looser than the .024 that I thought may be the suggested lash.
I would appreciate some guidance here.
Melting Slicks
Joined: Mar 2006
Posts: 3,341
Likes: 7
From: Connecticut
Thread Starter
Racer
Joined: Jul 2007
Posts: 444
Likes: 0
From: Roselle IL
Thanks for the reference here. The recommendations there vary quite a bit in the actual lash measurement. Does anyone know what was recommended lash is in the Service Manual for the '69 L-88?
Thread Starter
Racer
Joined: Jul 2007
Posts: 444
Likes: 0
From: Roselle IL
Thanks for providing this. I appreciate it.
The other post referenced going about .005 - .006 tighter when cold (aluminum heads). I think I will try that.
I saw reference to an adjustment method where the crank is rotated in 90 deg. increments and another method where you check the exhaust when the intake is closing and the intake as the exhaust is opening. Will both of the work effectively? Any suggestions on which is easier
The other post referenced going about .005 - .006 tighter when cold (aluminum heads). I think I will try that.
I saw reference to an adjustment method where the crank is rotated in 90 deg. increments and another method where you check the exhaust when the intake is closing and the intake as the exhaust is opening. Will both of the work effectively? Any suggestions on which is easier
Le Mans Master
Joined: Apr 2007
Posts: 7,353
Likes: 72
From: Graceland in a Not Correctly Restored Stingray
Short of having an indexed balancer, I like the check E @ IC / I @ EO method myself.
Once you do a hot lash, then let it cool competely and recheck, you'll know the correct cold lash.
Once you do a hot lash, then let it cool competely and recheck, you'll know the correct cold lash.
