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Valk-Obsessed
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« on: August 09, 2018, 01:54:43 PM » |
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Hi all, been out most of the day riding with my so two up, came to a stop at a light, the prepare to go again, when I get a horrible noise from what I think is the driveline, and can not engage any of the gears. Any thoughts?
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hubcapsc
Member
Posts: 16779
upstate
South Carolina
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« Reply #2 on: August 09, 2018, 02:36:10 PM » |
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Probably not a hard fix, but you'll have to pull the wheel and final to look and see the damage... good luck  -Mike |
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #3 on: August 09, 2018, 03:14:30 PM » |
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Curious, was there any indication of a problem before stopping for the red light?
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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CoachDoc
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« Reply #4 on: August 09, 2018, 04:39:14 PM » |
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Sounds like the pinion cup.
Please enlighten me. I do know about pinion cup failure- I service mine religiously- but why would he be unable to engage any of the gears if it's a pinion cup failure? Seems to me like he ought to be able to engage whatever gear he selects, but the rear wheel just wouldn't be turning. |
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CoachDoc
'97 Valkyrie Standard
'05 Goldwing
'74 CB550K
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da prez
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« Reply #5 on: August 09, 2018, 04:56:43 PM » |
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You some what answered your own question. If the final drive will not turn , then no gears will work. Pinion cup and or driveshaft is suspected. I , personally would pull it all down. Sounds like a maintenance issue. DI Y. Ask for help locally. Most shops will do you in.
da prez
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« Last Edit: August 09, 2018, 08:14:11 PM by da prez »
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The emperor has no clothes
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« Reply #6 on: August 09, 2018, 05:11:17 PM » |
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Sounds like the pinion cup.
Please enlighten me. I do know about pinion cup failure- I service mine religiously- but why would he be unable to engage any of the gears if it's a pinion cup failure? Seems to me like he ought to be able to engage whatever gear he selects, but the rear wheel just wouldn't be turning. Maybe I misunderstood what he meant. I took his post to mean he tried a few gears (maybe not all 5) and it just made a grinding sound in each with no forward motion. I think many of us might think it's in the gearbox at first. |
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Valk-Obsessed
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« Reply #7 on: August 09, 2018, 08:48:53 PM » |
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I didn't sense any indication of a problem, until I had one. I'll tear it all down tomorrow and see whats up. Thanks all for the assistance thus far. Also got several answers on VRCC Facebook.
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #8 on: August 09, 2018, 08:59:16 PM » |
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I didn't sense any indication of a problem, until I had one. I'll tear it all down tomorrow and see whats up. Thanks all for the assistance thus far. Also got several answers on VRCC Facebook.
Well that's bad to have what's presumably a catastrophic failure in your drivetrain like that with no warning signs until it happens. Let us know what you find out. |
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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Earl43P
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« Reply #9 on: August 10, 2018, 04:01:52 AM » |
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Identical to my failure. I posted pictures in a thread about it. http://www.valkyrieforum.com/bbs/index.php/topic,89686.0.htmlTroutdude had some insight about DDT's swingarm drain hole being blocked contributing to this type of failure. Mine was clearly from a torn driveshaft seal and a lot of riding in the rain. UJoint boot might also be torn, letting water in there. |
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08 Goldwing
21 KTM390A
99 Valkyrie IS Sold 5/5/23
VRCC #35672
VRCCDS # 0264
When all else fails, RTFM.
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Valk-Obsessed
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« Reply #10 on: August 11, 2018, 07:45:27 AM » |
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My issue appears to be I went a tad heavy on the grease the last time I serviced the final drive last year. the grease plugged up the holes in the Pinion cup that normally allows oil in to lube the drive shaft and cup. Thiis led to rapid wear of the splines and drive shaft failure. didn't look like I had any water issues, but I will do better about replacing the oil seal each time I service the back end.
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #11 on: August 11, 2018, 07:53:59 AM » |
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Well I'm glad you got to the bottom of it, but I got to say that sounds really weird. I've gone a bit heavy on the grease too but I didn't think it could ever lead to a total failure of the pinion
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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John Schmidt
Member
Posts: 15209
a/k/a Stuffy. '99 I/S Valk Roadsmith Trike
De Pere, WI (Green Bay)
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« Reply #12 on: August 11, 2018, 08:44:32 AM » |
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......I've gone a bit heavy on the grease too but I didn't think it could ever lead to a total failure of the pinion
Agreed, an adequate covering of(not slathered on) good grease that meets the requirements of the manual is all that's needed. If you're relying on the breathing holes in the bottom of the cup to maintain lube on the pinion, you're in trouble....that's not their real function but does possibly add a bit to the longevity of the pinion/shaft splines. I've found over the years and numerous services on finals and drive shaft/pinions that if grease is overfilled in the cup, I often will find some grease droppings on the inside of the final housing where it has oozed out that way. The excess pressure built up from excess grease I've also found seems to have an effect on the seal for that area. An adequate covering of proper grease on the pinion/shaft splines is all that's needed, same approach for the splines on the final servicing. |
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Chrisj CMA
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« Reply #13 on: August 11, 2018, 12:18:53 PM » |
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My issue appears to be I went a tad heavy on the grease the last time I serviced the final drive last year. the grease plugged up the holes in the Pinion cup that normally allows oil in to lube the drive shaft and cup. Thiis led to rapid wear of the splines and drive shaft failure. didn't look like I had any water issues, but I will do better about replacing the oil seal each time I service the back end.
I'm glad the problem was the simple one. Your explanation of what happened makes no sense however. Half the time I do my drive, there is evidence of oil from the final drive in the pinion cup and half the time there is no evidence of oil lubing the splines in the pinion cup. I use more grease than is called for and never have had a problem except the one time the oil seal failed. Yes it is important to change that seal every once in a while. Every rear end service is a bit over kill. If you used bad grease thats part of the problem. If you went a LONG time between servicing the drive shaft that is an issue too. |
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Valk-Obsessed
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« Reply #14 on: August 12, 2018, 04:18:46 PM » |
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Not sure if the little holes had much to do with the wear on the shaft and cup or not, but I guess a combination of factors. I don't think the previous owner was much on the back end maintenance. The first time I took it all apart it was pretty dry and lots of red dust in the cup. I imagine the splines were pretty wore out then, but didn't really know any better. I've been trying to learn by doing and consulting the collective wisdom of the group. I've only seen what is considered good and not good through photos...and sometimes it's a bit hard to tell if mine looked like it was in good shape or not. I'll have a new shaft and cup soon, and a clean slate to start again from.
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