HeyFellas,
I have a newer US Engines 41cc and the spring on the spring starter broke. Removing the spring was easy but there is a drum like piece attached to the engine shaft. I can see no set screw or nut holding it in place so I assume it must screw onto the shaft. How do I get it off as it is pretty rough and would probably effect the performance of the engine if left on.

Thanks

Loopman[sm=confused.gif]

In the olden days when I had a Quadra 35 with a spring starter, I removed the sleeve. What I did was to lay the shaft/sleeve squarely on an anvil. I then smacked the sleeve with a hammer. It shattered like glass. It was put on with a transparent green sleeve adhesive made by Loctite. Once it sets up you can't get the sleeve off intact.

I imagine the next guy to reply will tell you how simple it is to remove intact.

Ken

Next guy replies....Heat......Loctite melts at 400 F....

Ralph, do you recommend this method over smacking the sleeve especially since Loopman says the sleeve is bad anyway?

This will probably ruin the rear seal and may overheat the bearing. I don't know if the US 41 has a sealed bearing.

Ken

If it were mine I would leave the sleeve on or cut the end of the crank off with an abrasive wheel, since he didn't say it would be used again...
The bearings on a US 41 are rollers, with a small seal on the crank..The heat wouldn't hurt the rollers, but too much might hurt the seal....

I'm not familiar with the US 41 but wonder if a simple small gear puller might do it for you. You can usually find one cheap at an auto discount store and/or rent one from them. My Fuji BT-50SA's spring starter assembly just slipped on over the shaft, one end of the spring slipped into a groove on the assembly and the other end attached to the crankshaft with a screw/washer.

A gear puller has no place to pull from..The sleeve fits tight against a shoulder on the crank...The new US41 I have here has no sleeve, just a straight crank extension sticking out from the case about an inch....There have been many different sleeves used over the years, some on a straight crank and some on a tapered end...G62s have used 2 different styles, one threaded onto the crank and another slipped over the taper and were held on by a nut..I think most of the Quadra and US 35s and 41s, when used, are Loctited onto a straight extension....I have always used heat to remove the sleeves, have not damaged a seal so far.....