Final drive or transmission failure?


Information and questions on GL1500 Goldwings (1988-2000)
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dbdataplus
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Final drive or transmission failure?

Post by dbdataplus »



1993 GL1500
1,100 miles from home I shift from neutral to first and the gearbox rattles like a lot of loose parts and no movement.
Shifting to neutral or holding in the clutch stops it - nothing makes it go

After reading some information online I removed the rear wheel and the differential hoping to find a fully worn down drive shaft ... but the splines look OK - certainly no metal shavings like I'd expect to find the splines finally wore out. Looking up inside the U-joint (receiver side) also looks fine.

Question: is there anything else that it's likely to be outside of the transmission case itself? In other words, other than dropping the engine and splitting the case?


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Andy Cote
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Re: Final drive or transmission failure?

Post by Andy Cote »

Welcome to the forum. Where are you from?

Sounds like you've already determined that you have a transmission issue. Sorry.
2015 Goldwing, basic black

Previously: GL1200 standard, GL1200 Interstate, GL1500 Goldwing, GL1500 Valkyrie Standard, 2000 Valkyrie Interstate, many other Hondas
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Rambozo
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Re: Final drive or transmission failure?

Post by Rambozo »

What happens in the rest of the gears?
dbdataplus
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Re: Final drive or transmission failure?

Post by dbdataplus »

All gears seem to make the same noise.
Anther interesting thing is that when I put it in neutral the noise is not present .... but when I engage "reverse" you can hear the starter motor turning but the wheel does not turn.
This made me "hope" that it was all in the u-joint-to-final-drive portion but that doesn't seem to be my luck.
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Rambozo
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Re: Final drive or transmission failure?

Post by Rambozo »

Have you pulled the driveshaft? Maybe the front U-joint gave up, or the spline joint to the trans?
You did look at the final drive to wheel splines? Quite a few of those have failed if not maintained.
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Solo So Long
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Re: Final drive or transmission failure?

Post by Solo So Long »

Get a mechanic's stethoscope. With the bike on center stand and in Neutral, put the end of the probe on the differential and slowly turn it a couple of revs. You should hear a steady rubbing sound, and not feel any crunching or stops.

Next, listen at the transmission, repeat, then if nothing heard, put it in gear and move the wheel back and forth from bind to bind (don't turn over the engine).

My guess is that you will hear crunchies with it in gear, OR it won't even bind at all, indicating the trans is history.

This would be a good time to find a 1500 parts bike.
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terryt
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Re: Final drive or transmission failure?

Post by terryt »

Pull the rubber boot back from the engine to the swing arm then with help start the bike up and put it in gear then check to see if the drive shaft turns This will give you an indication of gearbox drive shaft or diff


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