1994 Econoline E150 valve lash
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Joined: Mar 2006
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From: IL
Not sure what you're doing but if it's a stock motor going back together, they're pedestal / positive stop rockers the push rods are predetermined length.. Neither here nor there but here the clearances are below..
on later engines with the positive-stop rocker arm studs, the piston must be set to the TDC postion...the the rocker arm nut must be screwed down fully and tightened to a torque wrench setting of 18-20 lb/ft. Push the rocker arm down so the valve lifter is in the fully collapsed position and check the clearance between the rocker arm and valve stem using feeler gauges."
valve clearance ranges:
302 minimum: 0.067" maximum: 0.167" so.... you have quite a range of preload that the lifters can and do handle.
on later engines with the positive-stop rocker arm studs, the piston must be set to the TDC postion...the the rocker arm nut must be screwed down fully and tightened to a torque wrench setting of 18-20 lb/ft. Push the rocker arm down so the valve lifter is in the fully collapsed position and check the clearance between the rocker arm and valve stem using feeler gauges."
valve clearance ranges:
302 minimum: 0.067" maximum: 0.167" so.... you have quite a range of preload that the lifters can and do handle.
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