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HokieAg07

Onan Cam Welch Plug

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HokieAg07

Mine is leaking and loose in the bore (can see it vibrating when engine running). Can this plug be removed without much fuss / tear down? 

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bc.gold

End of camshaft has a recess for centering during machining so you could drill a hole just deep enough to gr through the welsh plug then thread in a self tapping screw adapted to fit your slide hammer.

 

Another option is to drill the hole say to accept quarter inch thread, then using a bottom tap to thread the hole, use a fairly long thread 1/4" bolt. Screw this bolt in until it bottoms out against the back end of the cam. with a couple more turns it will push out the welsh plug.

 

Just make sure your using a bottom tap to thread the hole, they can be a PITA to get the first thread started with out using the proper holder.

 

If  your welsh plug is the convex style why not give the center a good tap to further expand the plug in its bore.

 

 

 

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Edited by bcgold

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