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NOS Exhaust Nuts

Posted: Mon Nov 11, 2013 6:39 pm
by ajs350
I bought a set of these exhaust nuts on ebay but when I put them on the bike their gold color just does not look right. Are they supposed to be gold or are there other vendors who sell the silver/grey colored nuts that would seem to match better?
Thanks
Ross

http://www.ebay.com/itm/1979-82-honda-c ... 615wt_1124

Re: NOS Exhaust Nuts

Posted: Mon Nov 11, 2013 8:31 pm
by steve murdoch icoa #5322
Ross, these are pricey but they look to be the correct colour.
http://www.ebay.com/itm/CBX-Exhaust-Nut ... e2&vxp=mtr

Re: NOS Exhaust Nuts

Posted: Mon Nov 11, 2013 8:38 pm
by ajs350
Perfect! Thanks Steve.

Re: NOS Exhaust Nuts

Posted: Mon Nov 11, 2013 10:12 pm
by daves79x
Or you could buy them direct from Honda for about $.75 each.

Dave

Re: NOS Exhaust Nuts

Posted: Tue Nov 12, 2013 8:18 am
by EMS
The rules for corrosion protective plating on fasteners have changed quite a bit in the last 30 years. Different colors may be caused by different processes. If you are really concerned about exact color matches to the original condition, you may have a problem. On the other hand, I have seen owners using hardware store collar nuts on the exhausts. I don't think it will take away from the value of the bike.

Re: NOS Exhaust Nuts

Posted: Tue Nov 12, 2013 5:25 pm
by barryadam
Yellow zinc is rated a bit higher than bright zinc for corrosion resistance.
Supposedly.
Ymmv.

I bought those same yellow nuts, too. I was more worried about the knurled pattern on the nut flange causing a problem with the coating on the exhaust collars. I think the original 1979 ones had "smooth" flanges.

I used my own judgement and split my project fasteners into two buckets for re-plating - one bright zinc, one yellow zinc.
Oh, and one black.

I'm not doing a showbike restoration, or I'd be in concourse judge's hell for more than just fastener sins. :lol:

Barry

Re: NOS Exhaust Nuts

Posted: Tue Nov 12, 2013 8:48 pm
by Larry Zimmer
If you're having plating done without concern for authenticity, try for cadmium. Better than zinc. Might be more difficult to find. Definitely better corrosion resistance.

Re: NOS Exhaust Nuts

Posted: Wed Nov 13, 2013 12:44 am
by barryadam
Larry Zimmer wrote:If you're having plating done without concern for authenticity, try for cadmium. Better than zinc. Might be more difficult to find. Definitely better corrosion resistance.
Cad? In California? :naughty:
HAHAHAHAHAH

I went with Nickel for the tank and exhaust stuff.

Barry