Checking compression

[JRegier]

Just wondering if anyone had tips for how to check compression of a loose small engine powerhead without it being installed to a recoil

 

[Will Bark]

Re: Checking compression

You could try using a drill with a socket on the nut to the flywheel and spin the engine that way; you would need to secure the engine. Good luck

 

[boobie]

Re: Checking compression

What's the model # ??

 

[nwcove]

Re: Checking compression

"most" small ob's....and some large ones have a rope sheave on the flywheel. clamp the powerhead firmly in a b&d workmate or similiar type clamp.

 

[boobie]

Re: Checking compression

I wouldn't recommend using a drill and socket on the flywheel nut as you could screw up the nut torque on the flywheel.

 

[Bosunsmate]

Re: Checking compression

You could do a leak down test

 

[boobie]

Re: Checking compression

I'll stick with the compression gauge on a 2 stroke. The 4 stroke is a different story.

 

[HighTrim]

Re: Checking compression

Plenty times. Just be sure to secure it somehow and test away!

 

[racerone]

Re: Checking compression

Couple of bolt thru a 2 by 4 and clamp it in your bench vise or to a hefty table.---Pull the cord.

 

[JRegier]

Re: Checking compression

thanks for the suggestions everyone. Sounds like something to do in the spring. I don't feel like going out in the cold