Replacing my stuck Comet-30 driven pulley

[Girl-Trapped]

While trying to get a couple of nagging issues resolved about my Yerf-Dog--primarily idling and adjusting the base so pulleys/chain are less wonky, I found out that my driven pulley back-plate was broken from the central hub.

I live close enough to Go Power Sports in Keller, TX to zip over there and picked up a replacement 7" pulley plus some jackshaft bearings and a couple of throttle linkages since they had them. Got started trying to remove the driven pulley yesterday, but it wouldn't budge. Even after alternating PB Blaster and hammering away at the plate I couldn't get it to move.

Today, I fired up my MAP torch and heated up the whole end of the shaft once everything broke off the hub. I don't know if I've ever experienced something so stuck before in my life, but it did eventually break free once I got the keyway face of the shaft hot enough. I took a few pictures of the old broken pulley after it moved a bit and then the new parts after reassembling.

 

[mckutzy]

There's a trick here that is used a fair amount... That is heat the joint and rub a candle stub over it... The wax seeps between the joint all the way and it help to lubricate when pulling off the stuck part...

 

[TT540]

Pb blaster is not an instant thing. It needs time to soak down into parts. Days of planning ahead with a squirt here and a squirt there save a lot of effort.

All's well that ends well.

And it never hurts to put a little anti size on the assembly. Save the next guy down the line all the trouble.