Won't Spin Past Compression Stroke

[Silviasil]

Try this workaround. Turn the engine crankshaft backward till it turns hard because of compression, then use electric starter normally. Nature of the beast on some engines. Good luck

 

[SeniorCitizen]

QUOTE
Attached car battery. Will not spin past compression stroke.
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No knowledge of how the car battery was attached . Attach jumper cable + to starter lug and - lead touching the starter case or other good ground .
If no crank then remove spark plug wire and unscrew the spark plug 1 round and try it .

 

[Douglas Lee]

I thought the compression release worked on the exhaust valve.
Thanks,
Doug Lee

 

[hlw49]

No compressio release works off the bottom valve which is the intake. Three things can cause this problem valves out of adjustment. Broken compression release and can lobe slipped on the cam shaft. Adjust the valves and try to start it. If no start turn the engine backwards until it gets hard to turn and try to start it again. If no start it is probably the cam lobe has slipped on the cam shaft.

 

[Auto Doc's]

This is all adding up to a failed compression release. Aftermarket cams are junk and genuine Briggs are on backorder the last time I had to get one.

On top of it, the starter has likely been strained repeatedly and will soon fail once the cam problem is solved.

 

[Douglas Lee]

Hello hlw49
Thanks for that!
Doug Lee

 

[ILENGINE]

This is all adding up to a failed compression release. Aftermarket cams are junk and genuine Briggs are on backorder the last time I had to get one.

On top of it, the starter has likely been strained repeatedly and will soon fail once the cam problem is solved.

Looks like Ohio has 431, NY has 589, NC has 612, TX has 53, and UT has 214, and IA is out of stock but that is PD's version of a Amazon warehouse with robot picking and the robot AI hasn't learned to order it's own replacement stock yet. Iowa is always the first warehouse to run out of stock, and the last warehouse to get restocked.