Topic: Need Help Finding My Nuts - CB550

[Jeffro93]

I have a '77 or '78 head on my '75 CB550 and am using the updated cam cover with rocker shaft pins.  When I got it, the nuts for the pins weren't with it.  That didn't seem like much of a concern at the time, but now I can't find any nuts that fit the threads on the pins.  It should be an M6-1.25, I think, but I can't find any to verify. All other sizes that I've tried, which I think are all the other sizes, don't fit. 

If anyone knows the size, can verify the size, has an extra set to sell, or any other advice, I'd greatly appreciate it. 

Thx!


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[calj737]

M6x1.0
No 1.25 threads for M6

[thirsty 1]

My buddy keeps his in his wife's purse. It's dam shame too 

[alacrity]

M6 1.0. Normal.  If you can't get normal nuts to thread it means you need to run the pins through a dye or use a thread file and clean em up.   I use hardened m6 flange nuts for this (10.9. Not 8..  Maybe it's overkill.

[Jeffro93]

M6 1.0. Normal.  If you can't get normal nuts to thread it means you need to run the pins through a dye or use a thread file and clean em up.   I use hardened m6 flange nuts for this (10.9. Not 8..  Maybe it's overkill.

You're the winner!  It turned out that a PO tapped the end of each pin with a hammer.  The threads looked clean, but the first thread on each one was beat up.  They were perfect after running them through a die.

Thanks!

[alacrity]

YAY!  You need my address to send the box of victory cookies?