BritBike Forum logo
BritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorBritBike Sponsor SteadfastCyclesBritBike SponsorBritBike SponsorBritBike SponsorBritBike SponsorHepolite PistonsBritBike Sponsor
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Member Spotlight
steve-d
steve-d
Pennsyltucky, USA
Posts: 132
Joined: January 2015
ShoutChat Box
Comment Guidelines: Do post respectful and insightful comments. Don't flame, hate, spam.
Search eBay for motorcycle parts in following countries
Australia, Canada, France, Holland, Italy, United Kingdom, USA
Random Gallery photo
a word from..
Manuals on DVD (Shipping included)
Previous Thread
Next Thread
Print Thread
Rate Thread
Norton conrods on triumph pre unit crankshaft
#765587 02/16/19 9:58 pm
Joined: Dec 2015
Posts: 50
Britbike forum member
OP Offline
Britbike forum member
Joined: Dec 2015
Posts: 50
Has anybody out there any experience with a triumph pre unit crank being modified to take norton con rods at 1.750" i have a crankshaft that has been adjusted thus and also polished, any ideas?

regards

derek

Support Your #1 BritBike Forum!

Check out British motorcycles for sale: British Motorcycles on e-Bay UK, British motorcycles on e-Bay North America
Re: Norton conrods on triumph pre unit crankshaft
NickL #765823 02/19/19 7:38 am
Joined: Dec 2015
Posts: 50
Britbike forum member
OP Offline
Britbike forum member
Joined: Dec 2015
Posts: 50
Hi Nick, Thanks for reply, the crank came with some old grasstrack racing stuff, 8 valve head, 90mm barrels for puma crankcases and other stuff. Ill try and put a picture up. cheers derek
[Linked Image][Linked Image]

Last edited by harvey_mushman; 02/19/19 7:50 am.
Re: Norton conrods on triumph pre unit crankshaft
NickL #765948 02/20/19 3:46 pm
Joined: Dec 2015
Posts: 50
Britbike forum member
OP Offline
Britbike forum member
Joined: Dec 2015
Posts: 50
90mm cosworth forged pistons and bronze sculling in the heads[Linked Image]

It would have been a bit of a monster but i ended up swapping the bits i had for a norton belt drive kit for my tribsa. I was never going to be able to make it work. I think thats what the crank may have been used for, the cases that suit the barrels in picture i never had but they were possibly available at some point back in time!

regards

derek


Moderated by  GrandPaul 

Link Copied to Clipboard
Home | Sponsors | Newsletter | Regalia | Calendar | Bike Project | BritBike Museum | Spiders Cartoons | DVD- Manuals & Parts books
Upgrade to: Gold Membership | Premium Membership | Vendor Membership | Site Sponsor Membership
Powered by UBB.threads™ PHP Forum Software 7.7.4