bassett
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| posted on 30/5/08 at 01:37 PM |
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Exhaust
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
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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grub
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| posted on 30/5/08 at 02:40 PM |
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i think nylocks might melt?
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smart51
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| posted on 30/5/08 at 02:46 PM |
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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.
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bassett
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| posted on 30/5/08 at 03:47 PM |
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Smart51 are the gaskets you used like very big copper rings?
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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stuart_g
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| posted on 30/5/08 at 04:08 PM |
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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.
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adithorp
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| posted on 30/5/08 at 04:31 PM |
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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
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bassett
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| posted on 30/5/08 at 08:48 PM |
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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
My MNR Blog Updated Jan 2010 - Track Day Prep Begins!
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TimC
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| posted on 30/5/08 at 08:51 PM |
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Both the items you need are available on eBay. That's what I did.
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smart51
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| posted on 30/5/08 at 08:59 PM |
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quote:
Originally posted by bassett
Smart51 are the gaskets you used like very big copper rings?
I've used copper rings and the yamaha foil coated fibre ones.
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Pdlewis
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| posted on 30/5/08 at 09:24 PM |
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how about
these
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ChrisGamlin
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| posted on 30/5/08 at 09:52 PM |
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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]
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