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Old 05-10-2008, 10:37 AM
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waybomb waybomb is offline
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Quote:
Originally Posted by OMEGAMAN View Post
You dint torque them down they are adjustable. Here is how you do it. Put the lifter on the base circle of the cam ( top dead center on compression stoke) loosen rocker so push rod can easily turn back and forth with oily fingers. While turning the pushrod slow tighten the rocker untill the pushrod stops turning (thats zero clearance). then tighten the rocker 1 full turn.
If you get a manual it will tell you what 8 rockers you can adjust at tdc #1 then turn the crank 1 turn and do the rest. Or you can just do one cyl at a time.
Yikes! I believe the above procedure is for fully pumped up lifters. If you aren't sure they are pumped up, you could put your valvetrain in a bind and break something.

Here's a better way.

On the base line, as done above, tighten the rocker until the pushrod displaces the lifter plunger to about half of its travel. To find the travel of your particular lifter, compress the piston to the bottomed out point. Then back off halfway.

USE GM EOS assembly lube on non-roller lifter engines!!!!! One 16 oz can per 5 quarts of oil. Make sure you also generously apply assembly lube to the cam lobes and lifters.

THIS IS CRITICAL!. ZDDP has all but been removed from conventional gas engine oil to protect the catcon. ZDDP is what intimately protects wiped surfaces in your engine - lifters and cam lobes. Then use DELO400 or other diesel engine oil as the lubricant. It still has a decent amount of ZDDP is it.
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2009 ML350
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