Splines on drive end of crank

Information relating to the Matchless G9 or AJS Model 20 500cc twin
magnusk750
Member
Posts: 123
Joined: Mon Aug 08, 2016 9:25 pm
Location: ESTONIA

Re: Splines on drive end of crank

Post by magnusk750 »

I had the splines on my crankshaft metal sprayed/welded and machined to measure. Don't know the exact technique used, it was 25 years ago, made by ex motocross world champion Bill Nilsson RIP. At that time he used to work on engines for a speedway team, so I trusted him to do the job without asing too much questions. Remember he mentioned using the same equipment for renewing bearings in car gearboxes were the inner races was part of the shafts.
Groily
Member
Posts: 2261
Joined: Thu Jul 04, 2002 1:00 am
Location: NORMANDIE FRANCE

Re: Splines on drive end of crank

Post by Groily »

More thanks, shaun and magnus.
That's 2 successful repairs using weld/ metal spray - so it does look as if it's a practical option.
Just need to identify 'Who to Do' as it's beyond my pay grade on both the key fronts.
shaunstaples
Member
Posts: 252
Joined: Sun Dec 04, 2022 12:15 am
Location: Sheffield

Re: Splines on drive end of crank

Post by shaunstaples »

It’s really sad these days as these skills are disappearing fast now and are becoming more and more hard to find. I’ve grown up with this kind of support all around me (sadly missed). I know what needs to happen but find it difficult to do myself without compromise. If the welding was accurate, and the lathe top work is done then the grooves could even be filed if no access to a mill. ( probably what I would end up doing )
G15 Roy
Member
Posts: 3571
Joined: Sun Jan 01, 1995 12:00 am
Location: ESSEX UK

Re: Splines on drive end of crank

Post by G15 Roy »

Groily wrote: Thu Nov 07, 2024 7:33 am More thanks, shaun and magnus.
That's 2 successful repairs using weld/ metal spray - so it does look as if it's a practical option.
Just need to identify 'Who to Do' as it's beyond my pay grade on both the key fronts.
Six cranks awaiting for you to collect a gift from the UK.
Roy
Groily
Member
Posts: 2261
Joined: Thu Jul 04, 2002 1:00 am
Location: NORMANDIE FRANCE

Re: Splines on drive end of crank

Post by Groily »

Jeez Roy - thanks! Will send you an e-mail . . . .
Bill
Post Reply