Help adjusting valves.
#1
Help adjusting valves.
My buddy and I are working on his 68 chevelle today and we finally got the motor all back together and all we have to do is adjust the valves and set the timing. We were able to adjust most of the valves in the proper manner (not half at a time, one at a time). We were having a problem with getting the pushrods taught on the #7/4 exhaust valves, and the #2 intake valve. We set them all to .002 lash. After we figgured out the slack in the #4 and #2 we had number 7, and then we cranked it over and then we noticed more than half had slack in them. Any ideas on taking out the slack? (poly locks were the cause of the number 4 and 2 not tightening)
#3
RE: Help adjusting valves.
ORIGINAL: master tech
You may need to replace the nuts, so they will stay tight. To adjust the push rods, you will to have the motor running. Back off the nuts holding the rocker arms until the rocker start to make a clicking sound and turn the nut 1 to 1 1/2 turns.
You may need to replace the nuts, so they will stay tight. To adjust the push rods, you will to have the motor running. Back off the nuts holding the rocker arms until the rocker start to make a clicking sound and turn the nut 1 to 1 1/2 turns.
#4
#5
RE: Help adjusting valves.
I have always done it with the motor running. The motor will start with all rockers having slop. Continue to tighten a quarter turn at a time until they are quiet. Then one at a time back it off until you get a slight chatter then tighten till quiet plus a quarter turn. Same concept as the others just explained a little different.
#6
RE: Help adjusting valves.
ORIGINAL: charlie1935
Remove all spark plugs. I like to start on number one cylinder. When the intake just barely closes adjust the exhaust on that cyl. When the exhaust just starts to open adjust the intake on same cyl. Time consuming but it works.
Remove all spark plugs. I like to start on number one cylinder. When the intake just barely closes adjust the exhaust on that cyl. When the exhaust just starts to open adjust the intake on same cyl. Time consuming but it works.
#7
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