Headlamp Nacelle - Missing Bolt...i think?
Cruiser
Joined: Oct 2012
Posts: 108
Likes: 2
From: Pearland, TX
The pictures I saw, or should I say picture, first one could not tell what I was looking at, show the headlight trim ring and has nothing to do with nacelle. Mine is not a lock nut at all but an elongated nut and like mkguitar said, about a quarter inch long, give or take.
According to my dealer that elongated nut is a lock nut. My headlight doesn't have one but my auxiliary lights both use them.
Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
could be, but mine is not- if you look at earlier pic, you'll see traces of locktite on the threads of the machine screw.
a locking nut would need a nylon liner ( nylock), however nylocks do not tolerate torque- the nylon will just pull away from the steel, so not suitable in many applications.
There is also no mechanical locking mechanism attached the the nut- on my version of this- yours may be different.
Mike
a locking nut would need a nylon liner ( nylock), however nylocks do not tolerate torque- the nylon will just pull away from the steel, so not suitable in many applications.
There is also no mechanical locking mechanism attached the the nut- on my version of this- yours may be different.
Mike
HDF Community Team
Joined: Nov 2012
Posts: 6,191
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From: USA
The oem nut, in the oem package, showing the M4-0.7 thread pitch.
It's a crude fitting and mount, almost anything will actually work.
Cruiser
Joined: Oct 2012
Posts: 108
Likes: 2
From: Pearland, TX
As I noted above, the dealer called it a lock nut, but I am not sure it really is. As Mike noted it doesn't have a nylon insert and it doesn't appear to actually be a lock nut, just a long nut with a tapered end on it. I didn't try to thread the screw all the way through it when I verified they work together. When I installed it I could feel it pulling the trim ring tighter but again I couldn't say for sure that I could feel the extra torque a lock nut would require. I didn't Loctite mine, maybe I should take them apart and add the Loctite before I loose something.
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Tourer
Joined: Jan 2012
Posts: 498
Likes: 25
From: Hampshire, UK
Used the part numbers from the Harley instruction sheet for the trim ring, collected this evening from the dealer, perfect fit :-) Thanks for all the help guys, much appreciated!!
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