I have been looking for a running L24 and came across one that is supposedly rebuilt. My question is, what are some things I should look for to see if it is a good motor? And can a compression test only be done with actually trying to start it? I was wondering if I could maybe turn the engine from the main crank pulley bolt to check or.... I don't know thats why I'm asking. I can only take his word on it being rebuilt so I need some experienced advice on things to look for. Thanks in advance to all

Ask the guy your getting it off to start it. If it doesn't go, dont buy it!

A compression test can only be done on a cranking engine with all the pluga out and the throttle held open at the carbs. Disarm the ignition as to not fire. :devious:

Compression tests and leak down tests are best done with the engine warmed up to operating temperature. If the engine is not in a car and cannot be started it is very hard to tell what you are getting. I would ask who rebuilt it and ask for receipts. If they cannot produce an engine builder and receipts for the valve job, vavle seats, rings, bearing, machine work, etc. then you might as well flip a coin. At that point it is a gamble at best! You might end up with a great deal on a rebuilt motor or spending money for a fancy looking chunk of metal! If it is on an engine stand you could look at the under the valve cover and under the oil pan to see how things look. But even then you will not be able to tell what parts they used to build it.

Thanks Guys!

Isn't amazing how the words of engine parts change so much between countries...

Oil Pan in America- Sump in Australia

Valve cover in America- Rocker cover in Australia

My dad has a workshop manual for an old british bike(BSA i think) and it has all of the American->British termanology... pretty funny some of them!

Cheer'z'