Adjusting rockers
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Adjusting rockers (87Beast)
If stock, don't touch them.
If they have just been installed make sure all are loose. Then pick a cylinder and turn the crank till the intake valve is closing and set the exhaust lash; turn the crank till the exhaust valve is just opening and set the intake lash.
To set the lash twirl the pushrod with thumb and finger while tightening the rocker nut. When you just feel some resistance that is zero lash; tighten 1/2-5/8 turn beyond that point.
Repeat for each cylinder.
If they have just been installed make sure all are loose. Then pick a cylinder and turn the crank till the intake valve is closing and set the exhaust lash; turn the crank till the exhaust valve is just opening and set the intake lash.
To set the lash twirl the pushrod with thumb and finger while tightening the rocker nut. When you just feel some resistance that is zero lash; tighten 1/2-5/8 turn beyond that point.
Repeat for each cylinder.
Drifting
Joined: Jun 2001
Posts: 1,997
Likes: 1
From: Lake Ozark MO
Re: Adjusting rockers (87Beast)
And for anyone else perusing this post... I just replied to another question and posted some pics for rocker adjustment straight out of my '96 Helms manual.
Although its for a '96, it will apply to basically all stock 350's.
http://forums.corvetteforum.com/zerothread?id=509726
Although its for a '96, it will apply to basically all stock 350's.
http://forums.corvetteforum.com/zerothread?id=509726
