2 engines, both broken

raw1981 · Post by **raw1981** » Fri Jul 30, 2010 2:55 pm

Hi there.

I have 2 engines for my kr-1. engine A has blown crank seals (I am told) and a good top end, Engine B has a broken top end.

I have tried to simply bolt on the top end of engine A onto engine B, but when looking at the crank case it seems we have a stripped thread on the lower crank case near the crank bearing. (bolt

So the plan is now to use the crank case from engine A and just pop the crank from engine B in and re-assemble.

Looking at the crank from engine A however, I can see no discernible difference between the two.

Do I just bite the bullet and send the crank off to stan stephens and that way I know the crank has been properly seen to, or do I risk it and bung in the crank from engine B?

Anything I can do to test these cranks and see if they work properly?

Thanks

Rick

Luders · Post by **Luders** » Fri Jul 30, 2010 3:17 pm

I'm always cautious, especially with regard to the bottom end and would be inclined to get it properly checked out.

Have a chat with Graham File and see what he thinks would be my advice.

Telephone: 01303 262 222
Email: graham@grahamfile.co.uk

buzinc · Post by **buzinc** » Fri Jul 30, 2010 3:36 pm

I would agree with Luders.

If you assemble the engine and install it in the frame etc, and this one has a duff crank seals or worse, throws a rod. You have to do it all over again!

Graham did my crank - it was buggered! But, he has some sound advise.
Check link below for my pics and what other folk have to say on the matter.

Buz

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