I'm rebuilding the HS40 for my Hustler after discovering gouges in the cylinder. Just got the block back from the machine shop and thought I'd post the rebuild here for future reference. Sorry I didn't get any before pics of the cylinder, it sure looked bad! My machinist wasn't sure it would clean up at .010 and thought we may have to go .020. Luckily, it did clean at .010 for the most part. There is a small scratch left, you can barely hang your fingernail on it. With Tec parts becoming rare, I thought I'd save my .020 piston for another day.
The intake valve was a little loose, so he installed a brass guide. Tec makes an oversize valve stem valve, but he said it requires special tooling to size the guide and also do a valve job since its an odd size. Also, I may have to take the block back to him after ass'y so he can set the tappet clearance if its off.
I hope to post ass'y pics soon.
Tom.
The intake valve was a little loose, so he installed a brass guide. Tec makes an oversize valve stem valve, but he said it requires special tooling to size the guide and also do a valve job since its an odd size. Also, I may have to take the block back to him after ass'y so he can set the tappet clearance if its off.
I hope to post ass'y pics soon.
Tom.