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MG Midget and Sprite Technical - 1500 Thrust Washers!

When I recently replaced main and big end bearing shells on my 1500 insitu, I found the usual worn thrust washer problem. There was considerable end float and one rear washer was worn concentrically in ridges as was the crankshaft bearing surface running against it.
I replaced both washers and brought the end float within tolerances and will now be reassessing end float on a regular basis.
Can anyone advise me what the best way forward should be?
Is it possible for a machine shop to grind out the scoring on the side of the thrust flange and then put in thicker thrust washers to compensate?
Or do I have to throw away the crank and buy a new one - £££££?
Tony Wood

you could build it up with weld and re-machine it back to standard dimension
David Smith

David,
I didn't know that it was possible to do that. Presumably a competent machine shop would be able to do that. Would you know where I could find out the original thickness of the thrust flange?
Tony Wood

Rach might know, she's handy with 1500s (I've never had one). It might be uneconomic, given the cheapness of s/h 1500 engines. It's the sort of process used on old rare stuff where there aren't loads of spares knocking around.
David Smith

Tony,

I thought you could get oversized thrust washers as you suggested so that the crank could be machined without the need to weld it. Often the machine shop has access to bearings that don't typically show up in the regular parts books. So, I would check with a machine shop.

Charley
C R Huff

Moss list a range of oversize thrust washers, although I think they have left out the decimal point. See below...

Dave O'Neill 2

This thread was discussed between 07/11/2016 and 08/11/2016

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