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what is my nut size

Posted: Sun Sep 09, 2012 11:29 pm
by 2valve
;) , hi to all :D . can anyone tell me what the size's are of the cylinder and cylinder head " nuts" ? . have to buy a torque wrench and socket to suit, have picked out the torque wrench which is a warren and brown # 321500 ( any comments on this ? )but not sure of what size socket i need. the bike is a 1975 R90s.

Re: what is my nut size

Posted: Sun Sep 09, 2012 11:57 pm
by ME 109
15mm my man.

Edited to add....15mm on my 81 RS, but I think yours will be the same.

Re: what is my nut size

Posted: Mon Sep 10, 2012 12:45 am
by Chuey
Surely you must have a set of sockets. They will work.

Chuey

Re: what is my nut size

Posted: Mon Sep 10, 2012 1:39 am
by ME 109
Chuey wrote:Surely you must have a set of sockets. They will work.

Chuey
So long as the drives are the same. And if not, there are adapters to suit.

Re: what is my nut size

Posted: Mon Sep 10, 2012 2:05 am
by Major Softie
If you don't have a set of sockets, you need a set. Buying single sockets for the standard sizes does not make economic sense. Get a set.

That brand is not one we are familiar with in the States, but Google tells me that it is very expensive for a 3/8" drive beam torque wrench ($225 - $245). It is thus likely that it is very good quality, but I know here very decent ones go for between $50 and $100, with cheap ass ones for under $25. If you have lots of tools and want a really good torque wrench, that's probably great, but if you have few tools and a limited budget, I'd spend at least 1/2 that on some other tools. That one may be a bit overkill for your needs. Professional tools have those kind of prices, and the biggest difference between them and decent quality mid-line tools is that the pro tools are made to work forever. The average bike owner doesn't need a tool designed to be able to work reliably 8 - 10 hours a day for the next 20 years.

Edit: I just looked at a picture of that torque wrench. That is a very fancy version of a "beam" torque wrench, and is not what we generally mean here when we say "beam torque wrench.

Your Warren and Brown:

Image
Image


What we mean when we say "beam torque wrench":

Image


Is the Warren and Brown better? I have no doubt.

Do you need that level of precision? I very much doubt that. Oh, and the W&B appears to only work in one direction, while the standard beam torque wrench works in both.

Re: what is my nut size

Posted: Mon Sep 10, 2012 2:51 am
by 2valve
Chuey wrote:Surely you must have a set of sockets. They will work.

Chuey
hi Chuey, yes mate have asst socket sets that will do the job but just dont have the bike here ( at the mechanics place ) to see what size or sizes it actually was. i havent worked on the bike for a very long time.

Re: what is my nut size

Posted: Mon Sep 10, 2012 3:08 am
by 2valve
hi Major Softie, yes the first picture is the one that im interested in ! already have its little brother (#320510 )which ive owned / used for a very long time for some accurate torque settings which was needed for the job(s) . what range do you recommend / what you got ?

Re: what is my nut size

Posted: Mon Sep 10, 2012 3:08 am
by 2valve
hi Major Softie, yes the first picture is the one that im interested in ! already have its little brother (#320510 )which ive owned / used for a very long time for some accurate torque settings which was needed for the job(s) . what range do you recommend / what you got ?

Re: what is my nut size

Posted: Mon Sep 10, 2012 3:10 am
by 2valve
ME 109 wrote:15mm my man.

Edited to add....15mm on my 81 RS, but I think yours will be the same.
thanks ME 109 , this is the info that i was after.

Re: what is my nut size

Posted: Mon Sep 10, 2012 3:19 am
by Major Softie
2valve wrote:hi Major Softie, yes the first picture is the one that im interested in ! already have its little brother (#320510 )which ive owned / used for a very long time for some accurate torque settings which was needed for the job(s) . what range do you recommend / what you got ?
Forget the range stuff I said. I think I must have clicked on the 320500, which is the 22Nm 3/8". The 321500 goes up to 120Nm, which is a lovely compliment to the "little brother" you already have. As I said, it's probably a lot more precise and expensive a tool than you need, but it is a very nice tool.

I'm going to go back and edit out the stuff I put in the above post about the range, cause it's wrong.