Adjustable pushrods help please
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Ultimate HDF Member
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From: Conroe Texas
Adjustable pushrods help please
Installed the 570 ES cams today , sdjusted acording to procedure with each cyl at TDC of compression stroke, did the 3.2 turns after finger tight on a 32 TPI GMR adjustable pudhrod kit, waited 15 min for bleeddown and it worked perfect can turn with finger no slack after each 15 minute period. Now after doing the each cyl individually I turned the engine via back tire, I check the rods again all spin except one after each revolution. Different one is tight each time. Does this sound right?
Last edited by masterblaster; Oct 10, 2010 at 09:25 PM.
Road Master
Joined: Nov 2008
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From: Central Coast CA
Could be possible as the duration / lap can be forcing a load on one of them. Do they all spin feely on TDC of each cycle of adjustment? The only way to know is adjusted on TDC for each one.
Road Master
Joined: Aug 2008
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From: Southeastern Wisconsin
The one not spinning freely is the one pushing the valve at the moment. If they are good at TDC you are good to go. No harm in starting over if you are unsure. Loosen them all up at TDC and take another shot at it.
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Ultimate HDF Member
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From: Conroe Texas
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Top Dead Center of the compression stroke the push rod is on the heel (base circle) of the cam. That's the point where they should rotate easily with your fingers. Anywhere else on the stroke & the push rod is either on the ramp or on the lobe of the cam & will be impossible to rotate. You would only be wrong if you *could* rotate all of them at the same time.
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