Throwing a push rod
Lead Driver
Joined: Dec 2012
Posts: 7,870
Likes: 47
From: Tennessee
Turn the motor by hand with the proper socket on the crank bolt . Watch the valve train while turning . Do not " bump " the motor over while working on the valve train .
Lead Driver
Joined: Dec 2012
Posts: 7,870
Likes: 47
From: Tennessee
If I am setting valves , not so often anymore , I wait until the one valve on a cyl. is near compressed . I then adjust the other on that cyl . I work my way down the banks in that order ,marking each with a grease pencil after adjusting .
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Freshman User
Joined: May 2014
Posts: 47
Likes: 0
And that's with the zero lash plus half turn at least? And if they are too tight then what does the motor do?
Logistics Pro
Joined: Jun 2003
Posts: 3,919
Likes: 271
Valve adjustment: One cylinder at a time. Rotate the engine just until the exhaust starts to open. Then, adjust the intake valve on that cylinder to zero valve lash (just until you start to feel drag on the pushrod.) Then tighten an additional 1/2 turn. Lock the lock nut.
Next, rotate the engine and watch the intake valve as it opens and begins to close. Just before the intake valve completely closes is when you adjust the exhaust valve.
Repeat for each cylinder.
Next, rotate the engine and watch the intake valve as it opens and begins to close. Just before the intake valve completely closes is when you adjust the exhaust valve.
Repeat for each cylinder.
Logistics Pro
Joined: Jun 2003
Posts: 3,919
Likes: 271
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Hotshot
Joined: Mar 2013
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From: Phoenix, Az.
If you mean the rocker arm is not pushing the valve and it's spring down as far as the rest then that cam lobe is wiped. The cam is junk.
Logistics Pro
Joined: Jun 2003
Posts: 3,919
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Sometimes its difficult to understand what someone is trying to explain through written text.
That's why I said to fish the lifter out with a magnet and inspect the face. I toasted lobe will show up right away on the lifter.
That's why I said to fish the lifter out with a magnet and inspect the face. I toasted lobe will show up right away on the lifter.