GSPD Rebuilt driveshaft exploded

Cigars&Scotch · 05-23-2012, 06:06 PM

Less than 12k miles. It was rebuilt by Guy and I am sure he will take care of it as he has been nothing but a stand up guy for all of us.

Just thought everyone would like to see the cool picture

Cogswell · 05-23-2012, 06:10 PM

Did you make it home first ?

Mike

hardwaregrrl · 05-23-2012, 06:17 PM

Quote:

Originally Posted by Cogswell

Did you make it home first ?

Mike

ps that f$%^ing sucks.....

Cigars&Scotch · 05-23-2012, 06:25 PM

It is actually my buddies drive shaft. It blew on Sat when he was on a goat trail in Virginia. we were at the RDV so we had access to the vehicle recovery service. We had to U-Haul it back up here on Sunday from the RDV.

I guess the loading and unloading of the rear going up the trail was what did it in. He said that there where no warning signs, it just went and he had 5 more neutrals

mykill · 05-23-2012, 09:30 PM

Was there hypoid in the swingarm?
My original shaft was failing when I got my GS, the swingarm was full of hypoid and the rubber was swelling and oozing. All is fixed properly (output shaft seal "V" now siliconed). I'm hoping the urethane Guy uses is more resistant.

camgregus · 05-24-2012, 09:22 AM

catastrophic
failure....

eeesh.

One Less Harley · 05-24-2012, 09:31 AM

who put silly putty in that drive shaft....BTW, Have I told you how much I love my monolever

Airhead Wrangler · 05-24-2012, 09:59 AM

I'd pour that thing full of solid epoxy resin or weld it. Just not a good design IMO.

Rob Farmer · 05-24-2012, 11:15 AM

Bumpmuncher had the same issue. He bought the chemicals and fixed it himself. http://www.ukgser.com/forums/showpos...4&postcount=15

Cigars&Scotch · 05-24-2012, 11:46 AM

Quote:

Originally Posted by Airhead Wrangler

I'd pour that thing full of solid epoxy resin or weld it. Just not a good design IMO.

That just won't work for very long. That PU is the cush drive in the system. If you made it a 1 piece, you would just blow up your ring and pinion or the tranny.

Look at any of the BMW drive shafts and you will see that all have some sort of system to act as a cushion to the final drive. Even in the exposed shaft system of the prewar BMW's they had a rubber donut to connect the drive shaft to the trans output shaft.

Airhead Wrangler · 05-24-2012, 11:57 AM

Quote:

Originally Posted by Cigars&Scotch

That just won't work for very long. That PU is the cush drive in the system. If you made it a 1 piece, you would just blow up your ring and pinion or the tranny.

Look at any of the BMW drive shafts and you will see that all have some sort of system to act as a cushion to the final drive. Even in the exposed shaft system of the prewar BMW's they had a rubber donut to connect the drive shaft to the trans output shaft.

BMW made plenty of bikes with solid shafts. Here's one from a /6

Also, HPN ditches the cush drive for a solid shaft as well.

Whether or not it would work well on a shaft with 2 U joints is open to debate though as there's a second thrust reaction to deal with.

Cigars&Scotch · 05-24-2012, 12:19 PM

See there, I do not know everything.

That is why I love this place

Now I have to tear mine apart this weekend and see how it looks.

Freeatlast · 05-24-2012, 12:41 PM

Gotta see this. I'll bring the ....Beer or Scotch in your case.

Bill Harris · 05-24-2012, 08:50 PM

AW, on the /6 and earlier, the only driveline cush was in the input shaft of the tranny.

robtg · 05-24-2012, 09:10 PM

Quote:

Originally Posted by Bill Harris

AW, on the /6 and earlier, the driveline cush was in the input shaft of the tranny.

All 5spd airhead gearboxes had cush drives on the input shafts.

05-23-2012, 06:06 PM	#1
Cigars&Scotch ^OP My eyes are up here Joined: Aug 2005 Location: Fancy Pants of North Jersey Oddometer: 1,739	GSPD Rebuilt driveshaft exploded Less than 12k miles. It was rebuilt by Guy and I am sure he will take care of it as he has been nothing but a stand up guy for all of us. Just thought everyone would like to see the cool picture __________________ Mike "Why don't you buy some flea collars for your ankles so the ants wont climb up you leg and bite your candy ass!!!" Kennyanc 07 H.Springs 38 BMW R71 w/sidecar Kung Fu version 77 BMW R90S Huh ? 90 BMW R100GS/PD "At last!" NRA Life Member, Trout Unlimited Life Member Drink till I'm Drunk Life Member

05-23-2012, 06:10 PM	#2
Cogswell Spudly Adventurer Joined: Jan 2005 Location: Riding with my pal Richard Cranium Oddometer: 3,253	Did you make it home first ? Mike __________________ Cogswell Rides To Big Bend See my airhead project here Time Warp Vintage Motorcycle Club The good thing is, your damn motor can't read. If it says oil on the container, it's pretty much OK to dump in there.... ED.

05-23-2012, 06:25 PM	#4
Cigars&Scotch ^OP My eyes are up here Joined: Aug 2005 Location: Fancy Pants of North Jersey Oddometer: 1,739	It is actually my buddies drive shaft. It blew on Sat when he was on a goat trail in Virginia. we were at the RDV so we had access to the vehicle recovery service. We had to U-Haul it back up here on Sunday from the RDV. I guess the loading and unloading of the rear going up the trail was what did it in. He said that there where no warning signs, it just went and he had 5 more neutrals __________________ Mike "Why don't you buy some flea collars for your ankles so the ants wont climb up you leg and bite your candy ass!!!" Kennyanc 07 H.Springs 38 BMW R71 w/sidecar Kung Fu version 77 BMW R90S Huh ? 90 BMW R100GS/PD "At last!" NRA Life Member, Trout Unlimited Life Member Drink till I'm Drunk Life Member

05-23-2012, 09:30 PM	#5
mykill odd Joined: Feb 2008 Location: Los Angeles Oddometer: 1,092	Was there hypoid in the swingarm? My original shaft was failing when I got my GS, the swingarm was full of hypoid and the rubber was swelling and oozing. All is fixed properly (output shaft seal "V" now siliconed). I'm hoping the urethane Guy uses is more resistant. __________________ Never underestimate the laxative properties of motorcycling.

05-24-2012, 09:22 AM	#6
camgregus riding gently now Joined: Feb 2006 Location: on the banks of the mighty mississippi, AR side Oddometer: 2,945	catastrophic failure.... eeesh. __________________ got to get it on the good foot

05-24-2012, 09:31 AM	#7
One Less Harley OH.THAT'S GONNA HURT Joined: Nov 2006 Location: Bowling Green, Ky Oddometer: 3,813	who put silly putty in that drive shaft....BTW, Have I told you how much I love my monolever __________________ 2004 BMW R1150RS 1984 BMW R80G/S (wrenching index) 2003 Suzuki DRZ 400S (TAT Prep) One More DRZ does the TAT (Ride Report)

05-24-2012, 09:59 AM	#8
Airhead Wrangler More tacos than you Joined: Mar 2008 Location: Manzanillo MX, occasionally Seattle Oddometer: 5,088	I'd pour that thing full of solid epoxy resin or weld it. Just not a good design IMO. __________________ R80ST Gets The HPN Treatment Ducati Pantah 500SL Rebuild Seattle to TDF on an airhead WTB R100R Mystic sidestand and mount.

05-24-2012, 11:15 AM	#9
Rob Farmer Beastly Adventurer Joined: Aug 2002 Location: Loughborough, Leicestershire. England Oddometer: 3,733	Bumpmuncher had the same issue. He bought the chemicals and fixed it himself. http://www.ukgser.com/forums/showpos...4&postcount=15

05-24-2012, 12:19 PM	#12
Cigars&Scotch ^OP My eyes are up here Joined: Aug 2005 Location: Fancy Pants of North Jersey Oddometer: 1,739	See there, I do not know everything. That is why I love this place Now I have to tear mine apart this weekend and see how it looks. __________________ Mike "Why don't you buy some flea collars for your ankles so the ants wont climb up you leg and bite your candy ass!!!" Kennyanc 07 H.Springs 38 BMW R71 w/sidecar Kung Fu version 77 BMW R90S Huh ? 90 BMW R100GS/PD "At last!" NRA Life Member, Trout Unlimited Life Member Drink till I'm Drunk Life Member

05-24-2012, 12:41 PM	#13
Freeatlast Adventurer Joined: Dec 2010 Location: This side of the Hudson Oddometer: 30	What time? Gotta see this. I'll bring the ....Beer or Scotch in your case.

05-24-2012, 08:50 PM	#14
Bill Harris Confirmed Curmudgeon Joined: Sep 2008 Location: backwoods Alabama Oddometer: 3,849	AW, on the /6 and earlier, the only driveline cush was in the input shaft of the tranny. __________________ '73 R60/5 Toaster Bill Harris screwed with this post 05-25-2012 at 05:48 AM Reason: clarified

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