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Post by fluffyadam on Apr 22, 2015 23:30:27 GMT
I was out for a ride a couple of weeks ago and noticed, part way through, an increase in noise coming from my front pipe at the header. When i got home I found the pipe had a good bit of play, but let's face it, any play is too much play. My first reaction was that I needed a new gasket, so I got one, but I think I've encountered the true problem. The flange doesn't grip and pull the exhaust pipe towards the engine when you tighten the flange nuts, and I assume it's meant to to have any hope of compressing the gasket. Has anyone had a simlar problem? I've tried to find assembly disgrams and things online but I've had no luck.
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Deleted
Deleted Member
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Post by Deleted on Apr 23, 2015 8:08:36 GMT
Is the flange on a stud into the head ? I have seen these come loose in the head and when you tighten them past the thread on the nut part, you then slacken the stud from the head, if this is the case take the flange and nut off the studs, then tighten the stud first on it's own into the head, then replace the flange gasket and and nuts and then retighten with care not to wind out the studs again. I was an expert at this after I bought a chinese scooter once, it used to self disassemble due to poor manufacture and interchangeability.
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Post by fluffyadam on Apr 23, 2015 20:32:44 GMT
Yeah that's how it goes together, is there a certain way to tighten it back in without clamping the threads? Hopefully the stud will still be in place, I didn't notice it being any further turned out than the other though.
I think the flange retainer ring has disintegrated, either that or the previous owner didn't bother using one last time. I think with using it the flange will make contact with the lip on the exhaust header. As you can probably tell, my mechanical expertise is exclusive to pure luck
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Deleted
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Post by Deleted on Apr 23, 2015 20:56:53 GMT
After you remove the flange if you lock two nuts together on the same stud you can wind in that stud until it is tight up to the recommended torque wrench setting, then do the other studs in the same way, then reassemble the gasket flange and nuts after the double nut arrangement is removed from the last tightened stud.
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nigec
Teesside Biker
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Post by nigec on Apr 24, 2015 10:22:45 GMT
is it a 883, rubber mounted engine? A Yamaha I used to have used to at best rattle the header loose at worse they used to crack, Yamaha ended up welding a dirty great flange around it, I would check the lip around the end of the pipe to make sure its round and hasn't compressed or worn, I think the saving grace its a readily available part At a push you could try two gaskets Like Bowman said the bolts are usually like this: www.cruisercustomizing.com/images/41-1026ExhaustStudKit.jpgif they wind out you end up with the nut hitting were there is no thread |
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