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Need part number for the larger fuel tap rubber.
Posted: Fri Jul 25, 2014 1:07 pm
by dkcape
There is one B tank that i would like to use and it has a bigger tap on it.The diameter of the rubber is 27 mm(nut uses a 27 spanner) as against the common one which is 21 mm(nut uses a 24 spanner and part number 16955 268 020)Is there a part number for the 27 mm diameter petrol tap rubber?
Re: Need part number for the larger fuel tap rubber.
Posted: Fri Jul 25, 2014 4:04 pm
by EMS
I am not sure that I know what you are asking for. The O-ring that seals the tap against the tank? If so, try 16958-MA2-771
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 3:10 pm
by dkcape
No sorry it not the o ring,it is the rubber that has the four holes and is the same shape as the number 16955 268 020.But that rubber is 21 mm and the one i would like is 27 mm in diameter.
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 3:44 pm
by NobleHops
Ahhh - we have a nomenclature issue here: Although this is most definitely an international organization and group here on the site, you'll find a lot of "American English" spoken here. We call that part the "petcock" and if you search for <petcock rebuild> sooner or later you would turn up this post by our Techical Director Dave McMunn (daves79x):
viewtopic.php?f=20&t=7915&p=60953&hilit ... ild#p60953
Search more and you'll find the finer points about rebuilding those...
N.
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 4:10 pm
by daves79x
AGAIN - The rubber for the larger petcocks from the '82s (and possibly some very late '81s) has NO KNOWN replacement. You can take it apart if you want and maybe clean it all and swell the rubber in brake fluid. Reassemble and it might work for a while. New ones are still available from Honda or go with the Pingle option.
Dave
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 7:01 pm
by EMS
The 82 fuel tap or petcock is the same as for the little 500cc GB500. And you might find one of these new for less $$$$, because everything with CBX on it costs a fortune.
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 8:29 pm
by NobleHops
Sorry for the bad steer there.
Re: Need part number for the larger fuel tap rubber.
Posted: Tue Jul 29, 2014 8:44 pm
by daves79x
GB 500 and '82 CBX petcock are the same part number.
Dave
Re: Need part number for the larger fuel tap rubber.
Posted: Wed Jul 30, 2014 11:37 am
by EMS
daves79x wrote:GB 500 and '82 CBX petcock are the same part number.
Dave
That's why they are the same. And sometimes, they do not have the same part-number.....
http://www.ebay.com/itm/Honda-Fuel-Petc ... 5e&vxp=mtr
Re: Need part number for the larger fuel tap rubber.
Posted: Wed Jul 30, 2014 12:04 pm
by daves79x
Say what?
Dave
Re: Need part number for the larger fuel tap rubber.
Posted: Wed Jul 30, 2014 1:24 pm
by dkcape
Ok its a petcock then.(It seams to be rather a rude name for a fuel tap.Wonder who named it that.)I have taken it apart,and will put the rubber in some other fluid that i use to enlarge the rubbers in the clutch hub.
Re: Need part number for the larger fuel tap rubber.
Posted: Wed Jul 30, 2014 3:28 pm
by EMS
pet·cock
noun \ˈpet-ˌkäk\
Definition of PETCOCK
: a small cock, faucet, or valve for releasing a gas (as air) or draining
Origin of PETCOCK
pet- (perhaps from petty) + cock
First Known Use: circa 1864