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little tech needed [Archive] - StangBangerz Forums
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inferno50
08-19-2011, 11:33 PM
On a 302 with flat tappet hydrolic lifters and roller rockers. It is supposed to have zero lash can you explain the process of setting the valves. Can they all be tightend down to just the point of a little drag on the rod or do u have to turn the motor and get each lifter in a certain spot before you do this. Not my motor just trying to help out a buddy.
Gearhead
08-20-2011, 08:55 AM
I'm assuming these are not pedestal mount rockers ??

If they are individually adjustable, then you need to adjust each separate rocker arm when the lifter is on the base circle of the cam (no lift) for that particular valve. Need to turn the engine over each time you adjust a valve. Some pretty good info on all of the major cam manufacturers websites...
outlaw85
08-20-2011, 03:16 PM
I always set each cyl. to TDC on the base circle (intake and exhaust valves closed) and adjust each rocker to "0" lash (pushrod will spin in between your fingers but zero up and down movement). Then go another 1/2 turn maybe 3/4 with aluminum heads after letting lifters soak in oil a day. This is super easy with the intake off especially since you can watch the lifters!