front brake master cylinder reservoir o-ring


Information and questions on GL1100 Goldwings (1980-1983)
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winguyjo
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front brake master cylinder reservoir o-ring

Post by winguyjo »



1982 aspencade ... having a hard time finding the part number for this because while the parts diagrams all list it (item number 17 ... it's larger than the one for a single disc system) none of them show it in the parts list.
should i take that to mean 'don't bother, it's no longer available' ? if so, what does one do for a replacement ? my princess auto (harbor freight) o-ring kit doesn't have anything that will work, the closest match was quickly damaged during installation.


Good Hondog
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Motorcycle: 1980 GL1100 Interstate
1978 GL1000

Re: front brake master cylinder reservoir o-ring

Post by Good Hondog »

That O-ring is Honda part number 45516-166-006 and is still available from Honda.
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winguyjo
Posts: 472
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: front brake master cylinder reservoir o-ring

Post by winguyjo »

good hondog, thanks for replying.
that's actually the one i ordered, and received, from the local honda shop. it's much too small at approx 27mm dia. it's for the single disk front brake system.
the one i need is something close to 40mm dia (two discs on the front, larger fluid reservoir).
Good Hondog
Posts: 206
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Location: Calgary, Alberta, Canada
Motorcycle: 1980 GL1100 Interstate
1978 GL1000

Re: front brake master cylinder reservoir o-ring

Post by Good Hondog »

winguyjo wrote: Tue May 28, 2019 9:52 am that's actually the one i ordered, and received, from the local honda shop. it's much too small at approx 27mm dia. it's for the single disk front brake system.
the one i need is something close to 40mm dia (two discs on the front, larger fluid reservoir).
OK, I went out to the garage and checked my stock of parts. I have a brand new reservoir and o-ring I ordered for my 1980 Interstate still in the original unopened bags. My shallow reservoir uses the 45516-422-006 o-ring. Your deep reservoir on your 1982 Goldwing should use the 45516-166-006 o-ring. Funny thing is, when you look at the dimensions Honda gives for each of those o-rings in the parts manual they are both the same 39.7 X 3.5 mm, and my o-ring measures exactly that. I wonder if your dealer messed up the order for yours?
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winguyjo
Posts: 472
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: front brake master cylinder reservoir o-ring

Post by winguyjo »

well, my dealer sold me exactly the part that i ordered (45516-166-006) ... but i ordered wrong.
i will look up 45516-422-006 and see what that looks like. the dimensions you have given (39.7 x 3.5) look like what i need as i roughly measured the existing one at 40mm.
thanks for the info, i am sure it will help.
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winguyjo
Posts: 472
Joined: Sat Aug 11, 2018 9:26 pm
Location: b.c. Canada
Motorcycle: wing1 : 1982 gl1100 interstate; resurrection complete. SOLD
wing2 : 1980 gl1100 interstate; resurrection complete. SOLD.
wing3 : 81gl1100i frame/82gl1100a engine/81cb900 bits. resurrection complete. naked. SOLD.
wing4 : 1977 gl1000 black w/ blue pinstripes; resurrection complete. SOLD
wing5 : 1977 gl1000 black w/gold pinstripes; nearly roadworthy when purchased, NOW RIDING.
wing6 : 1975 gl1000 blue; SOLD

Re: front brake master cylinder reservoir o-ring

Post by winguyjo »

yup, thats the part number i needed. funny thing is, they are available all over the internet, yet none of the parts diagrams listed it, although they did show it in the diagram.
thanks again, very helpful.


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