850 Nourish billet crankshaft

Snotzo · Oct 13, 2016

Fast Eddie wrote:-

I'm guessing Dave can't supply cos he sold both the equipment and the ownership rights to the new owners!

That is correct.

The latest rumor is that Bushell is about to file for bankruptcy, and has already been served notice by his landlord.

NKN · Oct 13, 2016

Snotzo said:
The latest rumor is that Bushell is about to file for bankruptcy, and has already been served notice by his landlord.

Ouch ! Happy I didn't sent any money over there... And another good reason to follow this forum

acotrel · Oct 13, 2016

The MAP cranks look interesting. Their website is down at present, however will probably be up again later.

http://www.mapcycle.com/

NKN · Oct 13, 2016

acotrel said:
The MAP cranks look interesting. Their website is down at present, however will probably be up again later.

http://www.mapcycle.com/

Well I'll rather go for an European one because if not I would have to add 20% tax :shock:

acotrel · Oct 13, 2016

Is that VAT or import duty ? Or are you talking about the exchange rate.

acotrel · Oct 13, 2016

I think there are two different mindsets in the UK and the USA as far as quality is concerned. I think American made items are more consistent due to their industrial engineering approach, however the British ones are made with loving care. I'm Australia, we don't do any of that stuff - we chisel crankshafts out of red-gum logs.

NKN · Oct 14, 2016

acotrel said:
Is that VAT or import duty ?

Both

acotrel said:
I think there are two different mindsets in the UK and the USA as far as quality is concerned. I think American made items are more consistent due to their industrial engineering approach, however the British ones are made with loving care. I'm Australia, we don't do any of that stuff - we chisel crankshafts out of red-gum logs.

Same in France, nobody is doing them.

Chris · Oct 14, 2016

Hi

Cranks! If possible I would have Steves in my Nortons. Triumphs however? It would have always been Dave. Five years ago my friend ran a Bandit framed T140 & was pretty quick. He worried about the standard crank & purchased one from over the pond, good price great spec. Long story short, Mallory practise at the start of the season lots of rumbling, things not right, stripped the engine down again. Measured everything & found the crank splines were undersize!
Crank back across the pond. Another bike lost to the classic grid. Lots of money gets tied up in a classic race bike, especially based on a road engine. You would strengthen change everything if you could. My friend changed class rebuilt the race bike & sold it. I do feel sorry for anyone who put a deposit down on a crank, engine (8 valve conversion) also the Nourish gearbox case which a friend ordered 18 months ago. Trouble is there are very few who can pick up the reins

Chris

Snotzo · Oct 14, 2016

For those interested in aquiring a one-off purpose made crankshaft, Arrow Precision Engineering Limited, located in Hinkley, England, are suppliers of high quality components, including conrods and crankshafts. A perusal of their web site at arrowprecision.com will afford an idea as to their capabilities in this respect. Whilst producing components mainly for the motor industry, they have also made for motorcycle applications.

Fast Eddie · Oct 14, 2016

Chris said:
Hi

Cranks! If possible I would have Steves in my Nortons. Triumphs however? It would have always been Dave. Five years ago my friend ran a Bandit framed T140 & was pretty quick. He worried about the standard crank & purchased one from over the pond, good price great spec. Long story short, Mallory practise at the start of the season lots of rumbling, things not right, stripped the engine down again. Measured everything & found the crank splines were undersize!
Crank back across the pond. Another bike lost to the classic grid. Lots of money gets tied up in a classic race bike, especially based on a road engine. You would strengthen change everything if you could. My friend changed class rebuilt the race bike & sold it. I do feel sorry for anyone who put a deposit down on a crank, engine (8 valve conversion) also the Nourish gearbox case which a friend ordered 18 months ago. Trouble is there are very few who can pick up the reins

Chris

Chris, I know someone who has a Nourish gearbox shell that he'd sell. He knows what it is and the value of it however, so no bargains to be had!
Its only had little use, and then only in a road bike.
PM me if interested.

NKN · Oct 14, 2016

Snotzo said:
For those interested in aquiring a one-off purpose made crankshaft, Arrow Precision Engineering Limited, located in Hinkley, England, are suppliers of high quality components, including conrods and crankshafts. A perusal of their web site at arrowprecision.com will afford an idea as to their capabilities in this respect. Whilst producing components mainly for the motor industry, they have also made for motorcycle applications.

Asking them for a 1974 Norton 850 Commando billet crankshaft, here is the answer I've got:

No, we do not produce a twin crank for the Norton.
It would be a custom job for us to produce 1.

Later in the day, following answer:

Approximately £4000 GBP + carriage and vat.

Fast Eddie · Oct 14, 2016

NKN said:
Snotzo said:

For those interested in aquiring a one-off purpose made crankshaft, Arrow Precision Engineering Limited, located in Hinkley, England, are suppliers of high quality components, including conrods and crankshafts. A perusal of their web site at arrowprecision.com will afford an idea as to their capabilities in this respect. Whilst producing components mainly for the motor industry, they have also made for motorcycle applications.

Click to expand...

Asking them for a 1974 Norton 850 Commando billet crankshaft, here is the answer I've got:

No, we do not produce a twin crank for the Norton.
It would be a custom job for us to produce 1.

NKN, I presume you do know that Andover Norton already sell billet cranks for Commandos?

Seeley920 · Oct 14, 2016

Mick Hemmings can do one for you, any stroke you want, and steel rods to match

NKN · Oct 14, 2016

Fast Eddie said:
NKN, I presume you do know that Andover Norton already sell billet cranks for Commandos?

You're right, I saw it but like there were cheaper stuff around, I tended to forget it. £ 1'895,00
And it's standard stroke

Seeley920 said:
Mick Hemmings can do one for you, any stroke you want, and steel rods to match

Yes Angela told me that they actually have a 15 pounds one, that usually goes in a Peter Williams Monocoque engines they are building for him. £ 1'450,00
Too light for me, I'm not doing a racing bike.
For a custom one it could take 6 months.
What about longer stroke ^ ^
Heavier crank ^ ^

Seeley920 · Oct 14, 2016

NKN said:
Fast Eddie said:

Seeley920 said:

Mick Hemmings can do one for you, any stroke you want, and steel rods to match

Click to expand...

Yes Angela told me that they actually have a 15 pounds one, that usually goes in a Peter Williams Monocoque engines they are building for him. £ 1'450,00
Too light for me, I'm not doing a racing bike.
For a custom one it could take 6 months.
What about longer stroke ^ ^
Heavier crank ^ ^

Click to expand...

Yes, longer stroke and heavier should be possible, as it's custom one. 6 months is about 100 years quicker than Nourish will do one now.

Fast Eddie · Oct 14, 2016

Like I said before, Maney cranks are top quality, well proven, cheaper than those listed, and usually available 'off the shelf' ...

What's not to like ?!?

NKN · Oct 15, 2016

Fast Eddie said:
What's not to like ?!?

First of all is that it's lighter. And of course it should be possible to add some weight on it, but if I can find one with no extra job to do on it, why not?

Then I was looking for a billet one, for strenght but also to get rid of the sludge trap. Does Maney's have one?

lcrken · Oct 15, 2016

NKN said:
Fast Eddie said:

What's not to like ?!?

Click to expand...

First of all is that it's lighter. And of course it should be possible to add some weight on it, but if I can find one with no extra job to do on it, why not?

Then I was looking for a billet one, for strenght but also to get rid of the sludge trap. Does Maney's have one?

Maney's is a billet crank. All three parts are machined from billets, as opposed to castings or forgings. Maybe you are referring to a one-piece crank, which for Nortons are also all (as far as I know) machined from billets.

Ken

Fast Eddie · Oct 15, 2016

NKN, why not tell us all what you are building, what your intended usage is, and what your ideas are? That way you might invite some advice from some of the very experienced guys on this forum as to what areas you might consider exploring.

NKN · Oct 15, 2016

lcrken said:
Maney's is a billet crank. All three parts are machined from billets, as opposed to castings or forgings. Maybe you are referring to a one-piece crank, which for Nortons are also all (as far as I know) machined from billets.

Ken

Thank you for helping me to improve my English :wink: I taught a "billet something" was something done in one piece of metal. And not an assembly of parts.

Fast Eddie said:
NKN, why not tell us all what you are building, what your intended usage is, and what your ideas are? That way you might invite some advice from some of the very experienced guys on this forum as to what areas you might consider exploring.

Like I'm very new in Norton's world, I'm just having a general look all over to get some inspiration, trying to understand how things go, getting bits from here and there, trying to improve my english also ^ ^ When I'll make up my mind a little more about what I would really like to do, then and only then I would share it here and, luckily, get some stuff from the very experienced guys.

850 Nourish billet crankshaft

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