rear rotor missing weights


Information and questions on GL1100 Goldwings (1980-1983)
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cpawilly
Posts: 53
Joined: Sun Mar 06, 2011 1:50 pm
Location: Martinsburg, WV
Motorcycle: 1984 Interstate

rear rotor missing weights

Postby cpawilly » Wed Mar 23, 2011 5:24 pm



I seem to be missing some weights on the rear rotor. Anyone know why they are there? Since I am missing some can I just remove the others? Maybe I should epoxy something in their place like a 7/16 nut? Any advice would be helpful. In the pic they are the gold looking discs near the bolt holes
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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: rear rotor missing weights

Postby WingAdmin » Wed Mar 23, 2011 10:05 pm

I've never seen weights epoxied to a GL1100 rotor like that before. I'm suspecting that's done by a previous owner...for what reason, I don't know. Perhaps as a method of balancing the wheel, without sticking on lead wheel weights?

I'd be more inclined to remove ALL of those weights.

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cpawilly
Posts: 53
Joined: Sun Mar 06, 2011 1:50 pm
Location: Martinsburg, WV
Motorcycle: 1984 Interstate

Re: rear rotor missing weights

Postby cpawilly » Thu Mar 24, 2011 7:54 am

A friend suggested that this may be a speed sensor input left over from an old cruise control installation. Maybe audiovox

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cpawilly
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Joined: Sun Mar 06, 2011 1:50 pm
Location: Martinsburg, WV
Motorcycle: 1984 Interstate

Re: rear rotor missing weights

Postby cpawilly » Fri Mar 25, 2011 10:15 am

FYI should this come up again...I removed them and they are magnets.

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WingAdmin
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Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: rear rotor missing weights

Postby WingAdmin » Fri Mar 25, 2011 10:39 am

Well then it definitely sounds like it was part of some kind of speed sensor then. Is there any evidence of a transducer having been mounted nearby to pick up a signal from the magnets?

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cpawilly
Posts: 53
Joined: Sun Mar 06, 2011 1:50 pm
Location: Martinsburg, WV
Motorcycle: 1984 Interstate

Re: rear rotor missing weights

Postby cpawilly » Fri Mar 25, 2011 1:11 pm

No sign of what they went to. I would have found it since the bike is down to the frame. Today is a milestone because I get to start putting stuff back on. Hope I can find all the bolts. LOL

Craig
www.kr2seafury.com

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WingAdmin
Site Admin
Posts: 17050
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: rear rotor missing weights

Postby WingAdmin » Fri Mar 25, 2011 2:15 pm

cpawilly wrote:No sign of what they went to. I would have found it since the bike is down to the frame. Today is a milestone because I get to start putting stuff back on. Hope I can find all the bolts. LOL

Craig
http://www.kr2seafury.com


I had a look at your Sea Fury site. Very nice...wish I had the time, money, space, etc. to take on an airplane project.

Lots of weld on those lower gear legs. :)

Only comment I have: having your fuel tubes laid out laterally at the wingtips, you have lots of moment that far out, so any sloshing is going to be amplified. You might want to find a way to put some baffles in there. You may also end up with some dutch roll tendency with that weight out at the end, depending on the size of your vertical stabilizer, I suppose. My other concern would be that any skidding motion is going to throw the fuel on the outside wing to the end, then drop that wing (hence the dutch roll). I suppose if you drop a wing beyond the dihedral that could also cause a wing drop tendency. Baffles could help with both of those.

Are you planning on a roll tube/cage in the cockpit?




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