Intro and a D2 question

James--nice looking D2--can't answer if the 5U small spring will fit but i suggest don't use the machine if the engine isn't tied down thru the spring and to the track frames.

Thanks for that Josh. 👍

Yeah, I don't plan on driving it until I can get the spring replaced and the pony motor rebuilt. I really don't like the idea of it doing a backflip on me or anyone else. And the play in the pony crank is unbelievable, its amazing the thing was still running!

Cheers,
James

Is the play in the crank up and down, in and out or both? if it's just horizontal play, sometimes it can be the end play in the outboard bearing due to a locating pin problem, it's a common issue, good to check before a full tear down.

Is the play in the crank up and down, in and out or both? if it's just horizontal play, sometimes it can be the end play in the outboard bearing due to a locating pin problem, it's a common issue, good to check before a full tear down.

It’s up and down and in and out. The up and down is a lot worse than the end play. I’ve not measured accurately but with a bar under the flywheel, you can move it up and down about 1/8th”.

It’s also pressurising the crankcase and blowing all the oil out the dipstick tube, although I’m hoping that might just be a blocked crankcase breather.

I can’t wait to see what I find inside!! 😆