SOHC.co.uk Forums > CB500/550
CSMNL Exhaust for CB550 K3
McCabe-Thiele (Ted):
If you don't want to use a die.
Find a spare nut of the correct thread. Cut a slot on the inside of the nut, Run a bolt into the slotted nut, grease nut.
Use the nut as a die.
taysidedragon:
Have a good look inside the threaded nut, there may be a bit of weld spatter blocking the bolt.
Oddjob:
Run a tap down the nut and a die down the bolt.
Gromitdog:
Thanks Guys for all your replies I am out in the garage this afternoon so I will look at the stud and hopefully it get it sorted 🤗.
PS Nice to see your back on line Ken hope your improving as the weeks go by ? look forward to hearing from you when your up & about 👍
taysidedragon:
--- Quote from: Gromitdog on September 09, 2025, 07:00:18 PM ---Hi All
As I mentioned on yesterdays update on fitting my K3 exhuast system which other than a bit of filing on the rear main brackets it should be good to go for a final fit tomorrow 🤗 🤗 However the outer exhaust which has 1x 10mm nut and a location pin I can't seem find a nut to fit it 😞 I have put a thread gauge on it and it seems to be 10 x 1.25mm it will only go on 1/2 a turn before feeling like its cross threading The thread has been chromed which might be the cause of the nut not wanting to go on correctly.
Any thoughts please
--- End quote ---
Is it a captive nut welded on to the bracket or a bolt that's causing the problem?
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