heymccall
Senior Member
First, flap wheel polish both the chassis hole and the companion area of the gearbox assembly.
Secondly, how are you lifting, balancing, installing the assy? The idea is to present it to the chassis as square as possible. Once at the bore, you need to square it as you set it. A lever is needed, whether a long pipe wrench on gear, or anything else that will help you rock it in, as opposed to pulling it in.
The fact that you said it came out tough says that you may need to remove material in, rather than polish, the chassis hole. Slip fit is ideal, but, certainly not necessary. You can get a better idea of where to remove more material by looking at the mating scars when you pry it out again.
Secondly, how are you lifting, balancing, installing the assy? The idea is to present it to the chassis as square as possible. Once at the bore, you need to square it as you set it. A lever is needed, whether a long pipe wrench on gear, or anything else that will help you rock it in, as opposed to pulling it in.
The fact that you said it came out tough says that you may need to remove material in, rather than polish, the chassis hole. Slip fit is ideal, but, certainly not necessary. You can get a better idea of where to remove more material by looking at the mating scars when you pry it out again.