McCulloch drive sprocket

[pafire]

I recently purchased a McCulloch chainsaw bar with a skip tooth chain and sprocket, however the 7 tooth -.404 drive sprocket is too lardge to fit my clutch drum. The saw currently has a 7 tooth 3/8'' sprocket. Does anyone make a .404 drive sprocket/clutch drum for a McCulloch 10-10. Could I run the .404 chain on the 3/8'' sprocket.

 

[Warped5]

It all depends on how you're set up.

If you have a drum/rim setup, then get Oregon rim 22270 and just swap them out.

If you have a spur sprocket, then you'll need to find the correct Mac part. My Oregon materials, only show a 3/8 spur.

You might wind up changing out the chain instead.

 

[pafire]

Thanks for the quick reply and the info. I have the drum/rim setup with a .404 sprocket nosed bar. Is it possible that McCulloch made different rim sizes. The supplied .404 x 7 rim is to lardge for my Mac 86948 clutch drum. I'm wondering if McCulloch made those clutch drums with different ID's on the rims.