I am using the R1 rear engined with a siera lsd chain drive diff.
The sprocket is a 52 tooth jobby.
I want to keep the diff very close to the engine.
I didn't get a chain with my engine so I have nothing to try, but before I spend money on probably the wrong length, have any of you guys got photos of a similar set up and how many links has your chain got?
I am hoping to get an off the shelf chain to fit, because I don't want to mess about with link removal tools etc.

Cheers Martin

[Edited on 9/3/2007 by nitram38]

You can remove links using a grinder if you're careful. Just grind off the rivet heads of the link that you want to remove and gently drift the pins out. Don't get carried away with the grinder as you'll overheat the lube in the rollers though....

Have a look here, here or here.

Each link is 1/2" from pin to pin. Good manufacturers are RK, DID, Tsubaki and Renthal amongst others.

Hope this helps!

[Edited on 9/3/07 by Coose]

This may be of help.
Rescued attachment IMG_5081.jpg

That only looks about 70 links.
I need to squeeze in a reverse starter on the gearbox cog, so I am thinking that a 108 link chain might be good.
Cheers Guys

You should bite the bullet and get a link removal tool, you will have to rivet the new chain anyway, so why worry about link removal?

quote:

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Originally posted by G.Man
You should bite the bullet and get a link removal tool, you will have to rivet the new chain anyway, so why worry about link removal?

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Hello,
If you want the engine fairly close to the diff a standard chain will be too long basically the same as a bike

Tsubaki Sigma 530 is an excellent chain, as far as I'm aware it's the strongest 530 available being stronger than most 630

They come split and you rivet the chain anyway

Cheers
David

Or you could just ask for the right length chain, and the shop will make you one to size

BUT

You will still have to rivet a section, and chain splitting isnt anywhere NEAR as onorous as riveting...

In fact its a doddle

I used to mechanic a global light race car which used 600cc Yamaha Thunder cat engine mounted very much like yours.

We found that we got through chains much faster than a bike would, Having to split the rear axle everytime we changed a chain would have been a complete PITA. Much quicker just to split the chain and re-rivet

The most cost effective option for us was to buy the longest standard bike chain and make 2 chains out of it.

Regards Davie

[Edited on 9/3/07 by daviep]

quote:

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Originally posted by nitram38
That only looks about 70 links.
I need to squeeze in a reverse starter on the gearbox cog, so I am thinking that a 108 link chain might be good.
Cheers Guys

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quote:

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Originally posted by daviep
I used to mechanic a global light race car which used 600cc Yamaha Thunder cat engine mounted very much like yours.

We found that we got through chains much faster than a bike would, Having to split the rear axle everytime we changed a chain would have been a complete PITA. Much quicker just to split the chain and re-rivet

The most cost effective option for us was to buy the longest standard bike chain and make 2 chains out of it.

Regards Davie

[Edited on 9/3/07 by daviep]

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Chris, the standard chain is 116 links (according to the manual).
I still have to factor in a starter motor reverse.
I bought a kit from lynx ae. It consists of a small starter motor (high torque geared version) and a cog that replaces the nut on the output sprocket.
The starter is a solenoid type so only engages when driven.
I need a longer chain to allow space for the starter.

quote:

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Originally posted by chris mason

mines started out as a 108 link chain, but has been made to suit the car, it has ended up at 95 links, it's all fitted up other than riveting the ends over, Chris

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Chris just bought a reasonable priced rivetter and splitter on ebay