Before I put the carb back on I thought it would be worth it to get that cleaned up too. So on one of my many trips to the local hardware store I picked up a 3” long piece of 5/16” treaded rod and two 5/16” serrated head hex nuts. I cut the rod in half and glued the two pieces in the previously chased out carb mounting holes with some red locktite. I had noticed in the past that the carb got unusually hot with the thin carb to block gasket so I installed a new thick
thermal isolation gasket (part # 47-049-01).
Since I had already installed one of these
carb rebuild kits (part # 25 757 02-S) I saw no reason to repeat that work but felt it was time to address the play in the throttle shaft. My understanding is that the dirt that is drawn into the engine through this air leak can be one of the prime reasons for premature engine wear. Installation of a
throttle shaft bushing (part # 25-158-02-S) was simplified thanks to this write up by member
Matt G;
http://www.mgonitzke.net/cubcadet/to...rb_rebuild.pdf
As a couple of the threaded holes on the face of the carb into which the air cleaner mounting bolts reside had become somewhat worn, I decided that, instead of drilling out and helicoiling, I would red lock tite in some 10 - 32 stainless steel threaded rod and add nylock nuts and stainless flat washers.