Cannot get a compression release on the following engine by adjusting valve lash at .003 inches.
331877 1371 B1
code 090925ZD
Air cowling has following into
Briggs Platinum, 540cc, 21 gross hp, XRD
I'm adjusting by turning the flywheel CCW (looking down on top) to 1/4 inch of the piston past TDC. (per the Briggs service manual for a 330000)
If valves are adjusted to .003 it has compression lock-up.
I can set the valves to .0015 and get a release but the engine is not smooth when it starts and gets more unstable as the engine warms up. Cannot get a comp release at .0025.
I cannot see any rocker arm bump on either the intake or exhaust valve as I slowly turn the engine in either direction.
Should I see a rocker arm bump when adjusted at .003?
Is the comp release on the intake on this engine?
How do I check to see if this is a camshaft release failure? The rockers, springs and adjusters appear ok.
The engine came to me with this issue and I found both valves set at very minimum of .001 area and someone been adjusting before because the valve cover only had permatex gasket maker.