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Flange nuts continue to looses?

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Old Dec 13, 2022 | 11:32 AM
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Originally Posted by Andy from Sandy
9. Attach the mufflers to the mounting bracket. Using the two supplied nut plates and5/16-18 flange bolts. Slide the nut plates inside the brackets that are welded to thebackside of each muffler.10. Make sure to align the head pipes and heatshields then tighten the cylinder portexhaust flange nuts on front and rear cylinders. Step 9 I wouldn't do the fasteners up tight, just fit them so it holds the mufflers in place. Do step 10 then go back and tighten fasteners in step 9.
I've just come out to the bike in the frozen shed and done the nuts to 10 ft lbs which is 13.5 Nm.I'll report back when I get a chance for a few spins.May be a while in Irish winter.
 
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Old Dec 14, 2022 | 02:39 PM
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I use MS21042-5 nuts for exhaust. They are elliptical locks and do not loosen. Many other advantages as well.
 
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Old Dec 14, 2022 | 03:03 PM
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Originally Posted by hrdtail78
I use MS21042-5 nuts for exhaust. They are elliptical locks and do not loosen. Many other advantages as well.
never heard ohear.Have you a link please?
 
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Old Dec 14, 2022 | 05:30 PM
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Originally Posted by hrdtail78
I use MS21042-5 nuts for exhaust. They are elliptical locks and do not loosen. Many other advantages as well.
What makes them self locking?I've seen this on some of the searches?
 
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Old Dec 14, 2022 | 05:36 PM
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Google the nut number, you'll get lots of results.
 
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Old Dec 14, 2022 | 06:19 PM
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My neighbor had the same problem. He then used serrated exhaust nuts and they stay tight now.
 
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Old Dec 14, 2022 | 11:39 PM
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Originally Posted by Stinger1
My neighbor had the same problem. He then used serrated exhaust nuts and they stay tight now.
is that different to these MS21042-5 nuts?
 
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Old Dec 15, 2022 | 05:13 AM
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You could double nut them
 
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Old Dec 15, 2022 | 05:18 AM
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Originally Posted by RANGER73
You could double nut them
V&H recommended using loctite but Im not gonna do that.Ive come across k nuts which might be the same/similar to what our friend recommended above.
 
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Old Dec 15, 2022 | 07:00 AM
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Originally Posted by murphc13
V&H recommended using loctite but Im not gonna do that.Ive come across k nuts which might be the same/similar to what our friend recommended above.
Loctite would be a waste of time; the heat would render the Loctite useless.












 
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