Author Topic: J.A.P. Model 2A  (Read 161 times)

Polybus

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J.A.P. Model 2A
« on: 13 September, 2019, 09:41:48 am »
I am currently restoring a little J.A.P. Model 2A and have a question about end float.

I started this project a couple of years ago, and life got in the way and I have only now got a chance to get back to it.

So it was disassembled and cleaned back in 2015, then stored until now. I have got it back together and got the little fella running, but when it runs I can actually see the crank moving in and out of the crank, and not just a little bit, probably around 6-7 mm or 1/4 of an inch. I don't remember this being present before I disassembled it.

I'm worried I've lost/forgotten to replace some shims, or washers onto the crankshaft, and this might be causing the looseness.

Question is:  What is causing this end float? And how do I get rid of it?

Any ideas?

Thanks

cobbadog

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Re: J.A.P. Model 2A
« Reply #1 on: 13 September, 2019, 04:07:46 pm »
I have never pulled one of these apart but don't run it any more until it is all gone as it could bend the conrod with that much end float.
Cheers, John & Dee. Coopernook. NSW.

Polybus

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Re: J.A.P. Model 2A
« Reply #2 on: 13 September, 2019, 05:04:15 pm »
Cheers CobbaDog

I won't run it again, I'm going to get it apart in the next day or two to see whats going on.

If I find anything interesting I'll post some photos.

Scott

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Re: J.A.P. Model 2A
« Reply #3 on: 14 September, 2019, 07:38:17 am »