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Thread sizes
Posted: Mon Jan 24, 2022 6:45 pm
by roy.craddock
Hi does anyone know the thread sizes of the 2 crankshaft end covers for extraction please, that’s the threaded holes on the plates ,I want to make my own extractor bolts, any information would be most helpful and welcome,Thanks Roy
Re: Thread sizes
Posted: Tue Jan 25, 2022 2:15 pm
by Roger Gwynn
5/16 UNC
Re: Thread sizes
Posted: Wed Jan 26, 2022 7:43 pm
by rogerlee
HI Roy,Roger G is half right,A standard 5/16 unc bolt is used,but the first 1/2 inch of the bolt is turned down to 1/4 inch with a 1/4 unc thread making it a shouldered bolt to stop you punching a hole through the end covers,Roger Lee and out
Re: Thread sizes
Posted: Thu Jan 27, 2022 12:12 am
by Roger Gwynn
Thank you Roger L, I stand corrected, you are of course correct.
Re: Thread sizes
Posted: Sun Jan 30, 2022 3:12 pm
by roy.craddock
Thank you both , yes I had a 5/16 bolt, so realised that it was turned down , bought myself some thread gauges so should be ok now on, Regards Roy.