Does anyone know were I can get some 1275cc crankshaft thrust washer set in 30 thou .It's is for my A+ block with EN40B crank.It's the last part that is needed to finish of the block and looks like the hardest part to find so far.
Olly

You can "Tin" the back face of them & then lay solder on to as thick as you need it, & then face them back on a stone nice flat & even (or even have them machined back if you`re that picky)

done it many many many & even Many more times than i can remember

altho,,,some practice at "Tinning" & soldering would be essential

& also, if you leave the lower thrusts with more clearance than the top, it is definately a bonus in helping with crank whip/flex so as not to push on the main cap

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Silver soldering them is better. I've seen soft solder drip off hot engine parts... not pretty!

+ .030" are no longer made.... only std or +.003" now.

Luckily when I put my S cranks into 1100S or 1300 auto blocks, I just need to surface grind the washers down by .015" each, that's easy!

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks for the replys I give the silver solder a try.

Best way is silver solder a strip of shim steel to it. Then, put it bronze face down on the magnetic chuck, and surface grind the steel shim to thickness.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.