Mechanics

ENGINE VALVES

1997 Nissan Patrol/Safari

Engine Mechanical problem
1997 Nissan Patrol/Safari 6 cyl Four Wheel Drive Automatic 210000 miles

what would cause inlet valves to gum up in the valve guide and cause the pushrods to jump out from under the adjustment screw on the rocker
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Robert piera
July 19, 2010.



Hi there,

Incorrect valve stem running clearance, over lean mixture causing the valves to run hot and expand causing tight clearances, these are often the main reasons.

Mark (mhpautos)

Mhpautos
Jul 19, 2010.