The thread on my crankshaft at the pulley end is damaged, does anyone have a 5/8 x 16 tap we could beg,borrow or buy ? i live in the Sutherland shire Sydney and don't think i could live without Charlie for more than a few days i don't mind traveling a bit to pick it up.

Thanks
Boo the Hamster

Graham Russell could fix it, or Tony at Mimi Spares at Padstow 9774 3366

Doogie

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I won Hay once, here's the pic to prove it..


Hay, it's not about the car, it's not about the venue, it's about the people that come here. Peter Dwyer, Mayor of Hay NSW.

Thanks for that, problem is i cant really see how i'm going to get the engine to mini spares, don't really want to take it out again. found a tap in England and can get it for about $30. might do that

isnt that the thread that is really odd and you cant match it because it is really weird (ie not common - generally no god once wrecked)??

Brenton

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The thread in both ends of the crank is 5/8-16TPI. Supposedly it's a UNS thread (neither UNF or UNC).

I had a crank in storage once and wasps made a mud nest in it. I got an old flywheel bolt and ground 4 grooves along it, it worked OK to chase the muck out of the threads.
May not work if threads are physically damaged.

Another method is to get a machine shop to set the crank up in a lathe and chase the threads with a screwcutting tool.

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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.