R80ST gets the GS Treatment - Page 20

Airhead Wrangler · 07-31-2009, 12:24 PM

Possibilities:

Like Solo suggested maybe a new gear polishing itself? I think it's WAY too loud to be that, but I can always hope, right?

#2: Could the gears still be dry? I added oil, actually overfilled a bit - gear oil was slowly dribbling out when I screwed the filler plug back in. How long would it take to get oil on all the gears? I rode it about 4 blocks away from my house and 4 blocks back. I would think that would be enough to get them oily and happy, but could it just be a matter of taking another spin around the block?

Any other wild ideas about what it could be? I think I've debunked the gear tooth pitch theory, but not totally sure.

Infracaninophile · 07-31-2009, 12:35 PM

Quote:

Originally Posted by Airhead Wrangler

Possibilities:

Like Solo suggested maybe a new gear polishing itself? I think it's WAY too loud to be that, but I can always hope, right?

#2: Could the gears still be dry? I added oil, actually overfilled a bit - gear oil was slowly dribbling out when I screwed the filler plug back in. How long would it take to get oil on all the gears? I rode it about 4 blocks away from my house and 4 blocks back. I would think that would be enough to get them oily and happy, but could it just be a matter of taking another spin around the block?

Any other wild ideas about what it could be? I think I've debunked the gear tooth pitch theory, but not totally sure.

Seriously, how about just laying the bike on it's side (gently) for 5 minutes? Maybe both sides? Upside down you would need to leave to Stagehand.

T.

Stagehand · 07-31-2009, 01:16 PM

I LEAVE THE BIKE ALONE AND TIP THE WORLD UPSIDE DOWN

Seriously I have been watching and hoping its just as they say, the parts getting to know one another.

It will take a few revs with no oil and not completely shit the bed. By the time you've gone a few yards most of the necessary bits have seen lube and mostly its for cooling the shit down anyway. not an oil problem i dont think.

I dunno wtf.

My tires are loud, too

Oh god im no help.

Airhead Wrangler · 07-31-2009, 01:52 PM

Well, I'm pretty sure the definitive answer will come soon. One of the former box builders from Bob's BMW is coming by tonight and I'm pretty sure he'll shit his pants when he hears it. After he changes his pants I bet he'll be able to give me a fairly solid opinion on what's making the unholy racket in my box. It sounds like a quartet of manual car transmissions driving in reverse. The tone is rev dependent, not speed or gear dependent and is present in all gears. This really points to the input gear. It still makes the sound even when the transmission is not under load. When in motion with the clutch in it still makes the sound if you're in gear. I think all signs point to the input gear.

Infracaninophile · 07-31-2009, 02:02 PM

Quote:

Originally Posted by Airhead Wrangler

Well, I'm pretty sure the definitive answer will come soon. One of the former box builders from Bob's BMW is coming by tonight and I'm pretty sure he'll shit his pants when he hears it. After he changes his pants I bet he'll be able to give me a fairly solid opinion on what's making the unholy racket in my box. It sounds like a quartet of manual car transmissions driving in reverse. The tone is rev dependent, not speed or gear dependent and is present in all gears. This really points to the input gear. It still makes the sound even when the transmission is not under load. When in motion with the clutch in it still makes the sound if you're in gear. I think all signs point to the input gear.

Any chance you can make a recording with your digi cam, upload to youtube, and link it here? It is pretty easy to do. This would allow us to listen.

A week ago I checked out a used local bike for a few Advrider inmates and made a recording with my camera in about 5 minutes. It allowed them to hear and see me riding the bike. I thought the engine made a noise and wanted potential buyers to hear it. Most any digicam can make movies.

Example in HD:

Tom

SOLO LOBO · 07-31-2009, 02:15 PM

Perhaps I'll duct tape my digicam to my trans housing and take a ride...

Airhead Wrangler · 07-31-2009, 02:17 PM

Quote:

Originally Posted by Infracaninophile

Any chance you can make a recording with your digi cam, upload to youtube, and link it here?

You read my mind. That's already part of the plan. Coming soon to a computer screen near you.....

Tranny Terror!

This kind:

NOT this kind:

Infracaninophile · 07-31-2009, 02:19 PM

Quote:

Originally Posted by SOLO LOBO

Perhaps I'll duct tape my digicam to my trans housing and take a ride...

No duct tape, you must hold it with one hand while riding with the other. Duct tape is cheating.

T.

Airhead Wrangler · 07-31-2009, 07:19 PM

OK here it is. Enjoy it. I know I won't.

SOLO LOBO · 07-31-2009, 07:22 PM

Quote:

Originally Posted by Airhead Wrangler

OK here it is. Enjoy it. I know I won't.

Wow

Infracaninophile · 07-31-2009, 08:59 PM

Quote:

Originally Posted by SOLO LOBO

Wow

+1. If I heard that out of the window of my car I'd be pulling to the side of the road and looking for the fire truck.

That is a very weird and loud sound. Not unpleasant, but not normal. Can't wait to see what you find in there. Nice video!

T.

datchew · 07-31-2009, 09:15 PM

any last chance you have no oil in your final drive or maybe a front wheel bearing?

if the noise changes with gear change, ignore that remark

Airhead Wrangler · 08-01-2009, 01:18 AM

Quote:

Originally Posted by datchew

any last chance you have no oil in your final drive or maybe a front wheel bearing?

if the noise changes with gear change, ignore that remark

I filled all 3 till they were overflowing. Then I double checked all 3. Both the tranny and final drive dribbled some overfill when I removed the plugs. The swingarm measurement was in the green. Something in the box is massively effed. There's really just no getting around it. This is what you don't want 2 months before a big intercontinental trip. I guess I'll be carrying on in Brad's tradition. I really wish I could be riding in this weather though.

stickerbush · 08-01-2009, 07:42 AM

That ain't right.

Crazy idea #27: Put bike on centerstand and remove rear wheel. Start engine, put it in gear and use your stethoscope to pinpoint the location of the source of the sound.

This would at least confirm it was the tranny and not anything else in the driveline. You could probably even narrow it down to the front of the tranny if it is truly the input gear.

Stagehand · 08-01-2009, 05:34 PM

Just totally bizarre. It DOes sound like reverse gear

This Youtube diagnostic is the shiznit, I'm tellin ya.

07-31-2009, 12:24 PM	#286
Airhead Wrangler ^OP More tacos than you Joined: Mar 2008 Location: Manzanillo MX, occasionally Seattle Oddometer: 5,106	Possibilities: Like Solo suggested maybe a new gear polishing itself? I think it's WAY too loud to be that, but I can always hope, right? #2: Could the gears still be dry? I added oil, actually overfilled a bit - gear oil was slowly dribbling out when I screwed the filler plug back in. How long would it take to get oil on all the gears? I rode it about 4 blocks away from my house and 4 blocks back. I would think that would be enough to get them oily and happy, but could it just be a matter of taking another spin around the block? Any other wild ideas about what it could be? I think I've debunked the gear tooth pitch theory, but not totally sure. __________________ R80ST Gets The HPN Treatment Ducati Pantah 500SL Rebuild Seattle to TDF on an airhead WTB R100R Mystic sidestand and mount.

07-31-2009, 01:16 PM	#288
Stagehand +/- V TDSPP Joined: Oct 2004 Location: "Poughkeepsie?!?!" Oddometer: 19,899	I LEAVE THE BIKE ALONE AND TIP THE WORLD UPSIDE DOWN Seriously I have been watching and hoping its just as they say, the parts getting to know one another. It will take a few revs with no oil and not completely shit the bed. By the time you've gone a few yards most of the necessary bits have seen lube and mostly its for cooling the shit down anyway. not an oil problem i dont think. I dunno wtf. My tires are loud, too Oh god im no help. __________________ What to do... What to do...

07-31-2009, 01:52 PM	#289
Airhead Wrangler ^OP More tacos than you Joined: Mar 2008 Location: Manzanillo MX, occasionally Seattle Oddometer: 5,106	Well, I'm pretty sure the definitive answer will come soon. One of the former box builders from Bob's BMW is coming by tonight and I'm pretty sure he'll shit his pants when he hears it. After he changes his pants I bet he'll be able to give me a fairly solid opinion on what's making the unholy racket in my box. It sounds like a quartet of manual car transmissions driving in reverse. The tone is rev dependent, not speed or gear dependent and is present in all gears. This really points to the input gear. It still makes the sound even when the transmission is not under load. When in motion with the clutch in it still makes the sound if you're in gear. I think all signs point to the input gear. __________________ R80ST Gets The HPN Treatment Ducati Pantah 500SL Rebuild Seattle to TDF on an airhead WTB R100R Mystic sidestand and mount.

07-31-2009, 07:19 PM	#294
Airhead Wrangler ^OP More tacos than you Joined: Mar 2008 Location: Manzanillo MX, occasionally Seattle Oddometer: 5,106	OK here it is. Enjoy it. I know I won't. __________________ R80ST Gets The HPN Treatment Ducati Pantah 500SL Rebuild Seattle to TDF on an airhead WTB R100R Mystic sidestand and mount.

07-31-2009, 09:15 PM	#297
datchew Don't buy from Brad Joined: Aug 2005 Location: Savannah - the dirty south Oddometer: 7,403	any last chance you have no oil in your final drive or maybe a front wheel bearing? if the noise changes with gear change, ignore that remark __________________ On tap:Nada Aging: 3 experiments in mead - blackberry, apple, and straight honey

08-01-2009, 07:42 AM	#299
stickerbush Adventurer Joined: Apr 2006 Location: Pacific Northwest USA Oddometer: 42	That ain't right. Crazy idea #27: Put bike on centerstand and remove rear wheel. Start engine, put it in gear and use your stethoscope to pinpoint the location of the source of the sound. This would at least confirm it was the tranny and not anything else in the driveline. You could probably even narrow it down to the front of the tranny if it is truly the input gear.

08-01-2009, 05:34 PM	#300
Stagehand +/- V TDSPP Joined: Oct 2004 Location: "Poughkeepsie?!?!" Oddometer: 19,899	Just totally bizarre. It DOes sound like reverse gear This Youtube diagnostic is the shiznit, I'm tellin ya. __________________ What to do... What to do...

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