Final Drive Inspection


Information and questions on GL1100 Goldwings (1980-1983)
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triketrash
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Final Drive Inspection

Postby triketrash » Fri Mar 07, 2014 12:35 am



I've got my back end apart for a tire change and am checking the final drive while I'm at it. Have a look at these pics:





To me it looks like the final drive splines are in decent shape but the ones on the flange are worn badly. This surprised me- I thought if there was wear, it would be on both. If I want to change it out, should I change both together, or can I just get a different flange, and use my existing drive if it looks ok.
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WingAdmin
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Re: Final Drive Inspection

Postby WingAdmin » Fri Mar 07, 2014 10:02 am

I agree. The final drive splines look in pretty OK shape, but that driven flange is finished. Perhaps that driven flange (and the wheel it is attached to) is not original to the bike?

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triketrash
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Re: Final Drive Inspection

Postby triketrash » Fri Mar 07, 2014 11:29 am

I'm not sure about that as the bike is fairly new to me. So would it be ok to replace ONLY the flange, or should they always be a mated couple?
I also forgot to mention that the flange side wheel bearing is very loose in the bore- I haven't removed it yet, but I might have to go up a size on the outside diameter to get a snug fit.

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WingAdmin
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Re: Final Drive Inspection

Postby WingAdmin » Fri Mar 07, 2014 11:52 am

triketrash wrote:I'm not sure about that as the bike is fairly new to me. So would it be ok to replace ONLY the flange, or should they always be a mated couple?
I also forgot to mention that the flange side wheel bearing is very loose in the bore- I haven't removed it yet, but I might have to go up a size on the outside diameter to get a snug fit.


It's fine to replace just one, as long as it is the same part number.

The bearing obviously should not be loose - if it is, it means that it has worn the wheel hub. This rarely wears evenly, so the opening will be somewhat oval in shape. You should probably have a machine shop machine the hole round again, and then press a new (larger) bearing in place.

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triketrash
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Re: Final Drive Inspection

Postby triketrash » Fri Mar 07, 2014 12:15 pm

OK- I'll look into that- thank you

and how about the question about mismatched drive/ flanges?

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RoadRogue
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Re: Final Drive Inspection

Postby RoadRogue » Fri Mar 07, 2014 10:47 pm

No problem ,just replace the worn flange. Or in this case wheel and flange 8-)
Ride safe, Todd
Over night campers welcome

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triketrash
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Re: Final Drive Inspection

Postby triketrash » Fri Mar 07, 2014 11:16 pm

Thanks Todd- Well I pulled apart the back end of my parts bike today and was happy to see that the flange looked good on it.


In fact, the drive looked better too, so I'm going to use the pair as well as the wheel since mine hub has issues after having that spun bearing. I think I can chalk that up to a loose pinch bolt at the axle attachment. Problem is, I have to blame myself for that, not the PO- must have missed torquing that when I lubed the final drive last summer :geek:

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RoadRogue
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Re: Final Drive Inspection

Postby RoadRogue » Fri Mar 07, 2014 11:50 pm

Nice, got to love having spare parts around. You can be up and running again in the time it takes to swap the tire from rim to rim. 8-)
Ride safe, Todd
Over night campers welcome

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triketrash
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Re: Final Drive Inspection

Postby triketrash » Fri Mar 07, 2014 11:52 pm

Ya and that's one job I farm out- I don't know if it's just me but I'll do just about anything but change a tire!

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WingAdmin
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2007 Aspen Sentry Trailer

Re: Final Drive Inspection

Postby WingAdmin » Mon Mar 10, 2014 9:02 am

triketrash wrote:Ya and that's one job I farm out- I don't know if it's just me but I'll do just about anything but change a tire!


I really hate that job too (it's a good workout), and avoid it...except I have a friend with a $10,000 pneumatic motorcycle tire changing machine, and he lets me use it. :)




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