After my "Wiring a Solenoid" tread went from electrical issue to motor is junk I decided to replace the engine. I found a used engine for it yesterday and am going to swap it out today. It looks very strait forward but I have one concern. The pulley on the bottom of the engine. Looks like a bolt on the bottom of the crank and it should pull off. I know people on here have probably pulled a million of these so is there any tricks? I am kind of scared it is going to be rusted on since I am sure it has not been off in 15 years. Also do you remove the belts first or just slide it off and back on the new engine with them on? I haven't looked at how they come off yet so hopefully thats easy to see. It is a MTD with a 12.5 B&S.