Hello Tyler and Gadge,
Thank you again. I'll double check my piston when I clean it up. Would it be worth the rebore if it hasn't been done so already? $36 for a new piston and ring set won't break the bank, and I don't think a rebore will either.
I was slightly out with my blades - they are from 1982 onwards. I suspect they won't be compatible but I've attached a photo anyway. Part is CA09506B, different to what is linked.
I also managed to get the engine off today.
It's a 1977 model. I'll give the base a good thorough clean in the coming days. I think progress will be slower than hoped. You can see my tiny work area, and I don't think my manual or parts will be getting here quickly. Rather than try to solve the delivery problems, Australia Post would much rather just tell us about them. Hey, I could do that for $2.6m/year as well if I were the boss! Ok, that's enough of that...I have mates out of work because of this Wuhan Flu mess.
My problems are trivial.
