Confused about exhaust gaskets
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Confused about exhaust gaskets
I have a Blackjack.
I just took off my cracked Prima exhaust. There was no gasket, just sealant.
I just ordered an NCY exhaust from monsterscooter however it doesn't look like the gasket comes with it.
So do I need the stock round gasket or one of the gaskets shaped like the exhaust flange? or both? I have seen prioes from 99 cents to $10 for the same thing so now Im confused haha.
I just took off my cracked Prima exhaust. There was no gasket, just sealant.
I just ordered an NCY exhaust from monsterscooter however it doesn't look like the gasket comes with it.
So do I need the stock round gasket or one of the gaskets shaped like the exhaust flange? or both? I have seen prioes from 99 cents to $10 for the same thing so now Im confused haha.
- babblefish
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If your engine is anything like my Blur's engine, then the gasket surface on your head should be flat with no recess for a gasket. The exhaust flange should have a recess built into it for a 30.5mm OD ring seal, such as this one found on eBay: http://www.ebay.com/itm/2-GY6-Exhaust-M ... rA&vxp=mtr
You can probably use a "flange" type gasket, but I've never tried it myself so you're on your own there.
Instead of the correct gasket, some lazy people have used a bead of silicone gasket sealant as a (poor) substitute, but this in not a good idea because the exhaust gases are much hotter than the silicone can handle and will burn off leaving you with an exhaust leak.
You can probably use a "flange" type gasket, but I've never tried it myself so you're on your own there.
Instead of the correct gasket, some lazy people have used a bead of silicone gasket sealant as a (poor) substitute, but this in not a good idea because the exhaust gases are much hotter than the silicone can handle and will burn off leaving you with an exhaust leak.
Some people can break a crowbar in a sandbox.
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- k1dude
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My Buddy 125 came with no gasket or sealant. I was surprised to find that out at 6,000 miles when I changed my rear tire. I didn't have a gasket at the time, so I bolted it back on as-is.
I ordered an NCY performance exhaust and it didn't have a gasket. But, by that time I had some spare gaskets on hand. I used one that looks like the flange. It doesn't sound right to me after installation though. It sounds like there's a leak, but I can't find one. I chalked it up to the new sound of the performance pipe.
I ordered an NCY performance exhaust and it didn't have a gasket. But, by that time I had some spare gaskets on hand. I used one that looks like the flange. It doesn't sound right to me after installation though. It sounds like there's a leak, but I can't find one. I chalked it up to the new sound of the performance pipe.
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That would be my experience, at least. The best advice I can give you is as you are tightening down the nuts, to do each nut a little at a time. If you first cinch down one nut while leaving the other nut loose the gasket will not be evenly compressed and may leak.Xsolusx wrote:Thanks for the replies! So it seems either will work?
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Sounds good. I just ordered 5 just in case haha.HowHH wrote:That would be my experience, at least. The best advice I can give you is as you are tightening down the nuts, to do each nut a little at a time. If you first cinch down one nut while leaving the other nut loose the gasket will not be evenly compressed and may leak.Xsolusx wrote:Thanks for the replies! So it seems either will work?
- babblefish
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