Welcome to the DoItYourself Forums!

To post questions, help other DIYers and reduce advertising (like the one on your left), join our DIY community. It's free!

ohv adjustments

J A Boggan's Avatar
Visiting Guest

Posts: n/a

03-15-02, 08:35 PM   #1  
J A Boggan
ohv adjustments

I have a 16 hp tecumseh engine on a riding lawnmower. It has a verticle crankshaft with verticle valves (intake on top). The problem that I'm having is that when I adjust the valves (on the power stroke), whenever I get the sightist clearance, the pushrod falls out. Are you suppose to adjust the valves with the engine running? This is the first time I have worked on an engine with OHV. What am I doing wrong?

Sponsored Links
cheese's Avatar
Forum Topic Moderator

Join Date: Jul 2001
Posts: 16,567

03-15-02, 08:48 PM   #2  
By "falling out", do you mean it drops out of the socket in the rocker arm? How are you measuring the valve lash? Engine should be OFF, piston at TDC on power stroke, like you said, and measure with a feeler gague between the valve stem and the rocker arm. There should be a "pocket" in the rocker arm that holds the pushrod in place. If it comes off, maybe it isn't properly positioned on the lifter in the block.

"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

Search this Thread