On the R1 do you need to use gaskets/washers on the port to manifold as i have two but the other two must have fallen out somewhere. I havent got any supplies nuts so can any nuts be used for the manifold studs or should i use nylocs or will they melt?
Adam

i think nylocks might melt?

I found I had to tighten mine up a fair amount to stop leaks and that was with gaskets. I don't think that you'll get away without. You'll probably get 2 or 3 uses out of the gaskets, you probably don't need new ones every time you take them off.

I'm also told that some car ones will fit, you don't need the expensive yamaha ones. Marc at MNR supplied them for me. He didn't remember which car they were from, just looked at the local factors for some that were the same size. You could do the same.

Smart51 are the gaskets you used like very big copper rings?

Yamaha gaskets are expensive I had to buy some. They are copper with a gauze in the middle. Kawasaki gaskets are like big copper washers/rings.

If you can find some car ones at the motor factors that will fit I would use those.

Nylocks won't do. Idealy you want copper exhaust locknuts. If you can't get any u2u me your address and I'll post you some.

adrian

Thanks for the replies. Stuart as ive seen copper rings come out of mine i wonder if the engines had different style gaskets? Thanks for the offer Adrian il try the local Eurocarparts, Partco, Halfords etc and if not il take you up on your offer. Cheers
Adam

Both the items you need are available on eBay. That's what I did.

quote:

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Originally posted by bassett
Smart51 are the gaskets you used like very big copper rings?

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how about these

It depends on how your manifold is made to seal but with mine, the chap who built it for me (who builds WSB manifolds) said to just smear a small amount of silicone round the top and clamp it up. 2 years on and its never blown, but the way my manifold is built means the bits that butt up against the exhaust ports can't move, unlike some.
You can see in this pic roughly how they clamp up, the collars at the top are completely seperate to the header tubes, which slide onto the collars and are held on with springs.


Promotive Exhaust mountings

[Edited on 30/5/08 by ChrisGamlin]