Hi all. I'm back with yet another two stroke project. This time it's a 1976 Montesa Cota 247T. It's in decent shape other than the engine which was locked up tight when I got it. I managed to free the piston with a judicious amount of beating with a hammer but now it gets tricky. The cylinder appears to have been sealed to the cases with Yamabond. I whacked it a couple of times with a rubber mallet but it's on there tight. Any tips or tricks to getting the jug off without harm?
I also scored a couple other project bikes for down the road. A 1973 Suzuki TS250 and a 1982 Maico 250.
heat gun. lots of heat. no flame.... and thats awesome :vroom:
Try Soaking in marvel mystery oil and tons of heat. Try the block of wood and hammer to break away the rust. I didnt have too much luck eith my rd so hammer and a socket. It destroyed the piston but I got it free!
He got it. Crank is seized too.