Stihl 051 clutch nut problem.

[comoxmcgyver]

Just replaced my oil pump in my 051 and putting together the clutch assembly and can't get the nut that snugs up to the clutch plate to stay on. Just spins off after i start the saw????? I've tried torquing her down pretty good but how much should I be torquing? anyone have this problem before? Here's a pic thanks

 

[klickitatsacket]

apply some blue lock tite to the threads before torueing the nut down. This will take care of the problem. Had to do it many a time. Remember NEVER use the red stuff or you will remember this thread forever.

 

[lucky]

Was there no lockwasher or wave type washer? You may need to stop the piston with a piece of rope and put some real torque to it........

 

[lucky]

oops forgot, Many hardware store carry shouldered nuts with serations on the inside of the shoulder. That would be another option. Good luck, John

 

[stihltech]

nut

Loctite and a lots of torque. Common problem on older 051.
I do not have the torque spec in front of me, but I am sure some one here will shortly.

 

[njforestfire]

Use a medium grade loctite. The "red" loctite (271,272,266) are high strength and are pretty much permanent...stay away from unless you want it to become permanent. The medium strength versions include 242 & 243 (both blue), 290 (is green and a wicking verision), grade C (blue) and screwlock grade EV (purple). Go with any one of these versions depending on their availability and price.