New drive sprocket = oil leak?? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 20 Old 09-25-2009, 04:35 PM
steve68steve
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New drive sprocket = oil leak??

Changed my chain and sprockets about two weeks ago. All went well, no drama, everything seemed to check out. In fact, I've put a few hundred miles on the new sprockets.

The bike has sat for a few days and I notice a small puddle of oil under it. The puddle is definitely oil - it makes a painted concrete floor slicker than snot - but it's very light in color. My engine oil (at least as seen thru the sight glass) is pretty dark (I'm due for a change).

I assume since I had the clutch slave cylinder off and the push rod out, that it has to be related to that and that the oil I'm seeing is the hydraulic stuff from the clutch circuit. The master cylinder level sight glass still shows full.

What did I do? I don't even know HOW oil could be coming out from the slave: the piston was in the whole time I was doing the sprocket work (tied in, in fact) and the rubber booty was there, in tact, no problems. I put it back together very carefully, and the clutch action itself is really smooth and nice.
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post #2 of 20 Old 09-26-2009, 04:45 PM
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Ok, I pulled it apart today to see what's going on in there. It's definitely leaking oil from inside the drive sprocket cover, altho it's so chucked around in there it's hard to tell from exactly where it's coming.

Given that I had the push rod out, and cleaned/ wiped/ fiddled around in there, and that the bike is now pushing 20k mi, I'm thinking it's the clutch push rod seal. Since it's so cheap and the likely suspect, I ordered a new one today.

Part #34 HERE. (don't know how to post the image directly in the thread like Greywolf does).

Now my new question:

Is this seal just pressed in to the block? IOW, can I just pull the old one out, lube the new one, and press it in (like how a valve stem is installed in tubeless tire wheel)? The service guy at the dealer said on some bikes you have to split the engine case to get at the seal from the inside.

In the meantime, it now drips enough oil when running to put out a cloud of smoke as it cooks off the exhaust plumbing. Takes a few minutes to stop smoking, then it's clear for a few minutes, then another cloud. So, seems like it's losing a drop every few minutes. I can live with the embarrassment of riding it like this, but (assuming I keep the oil level up) there's no harm in it, is there?
post #3 of 20 Old 09-27-2009, 05:23 AM
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First read, how to clean seal, might be good enough:
http://www.vstrom.info/Smf/index.php?topic=10862.0

Replacement info:
http://www.vstrom.info/Smf/index.php/topic,7571.0.html

V-Strom Search Engine - you might want to add to Bookmarks/Favorites:
http://www.vee-strom.com/search/

Austin

2002 DL1000 - 70K of joy, so far...
1978 GS1000 - One owner, still putt'n

Last edited by Austin44; 09-27-2009 at 05:28 AM.
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post #4 of 20 Old 09-27-2009, 07:47 AM
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THANKS!!! Searched over there and didn't find that - it's exactly what I was looking for!
post #5 of 20 Old 10-14-2009, 07:14 PM
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Hopefully this thread will help me. I find myself in the same position that Steve was in. I am seeing a little bit of oil dripping from the front sprocket cover area after a short ride. I remember reading this thread a while back and was lucky to find it in a search. I am hoping that I just have to clean the pushrod seal and not have to replace it.

-=Glen=-
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post #6 of 20 Old 10-14-2009, 09:15 PM
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Hey Glen,

I did replace the seal and no more leaks!! In the process, however, I bunged up the threads on one of the mounting holes for the clutch slave cylinder (DL1000), and I think I over-applied my back brake (to counter the torque of the sprocket nut) 'cuz it leaked out a few days later.

A little frustrating to fix one thing and break two others, but it's all sorted and back together and it feels good to have a bone-dry garage floor again.

FWIW, if you can change a chain and sprockets, it's only two more bolts to remove the seal retainer. A little wiggling, pop the old one out, pop the new one in (be careful not to push it in too far - it can drop right thru the hole) put it all back together. I paid $11 for the new seal from my local dealer.

Like so many other maintenance jobs, it's an hour of removing crap, 2 minutes of doing what you need to do, and an hour of re-installing crap. In the case of the Vee, anyway, it's pretty straight-forward crap, tho.

EDIT: the only biatch of the job is having a 32mm socket for the sprocket nut. I found out recently that AutoZone loans such tools out if you leave a deposit - which is refunded when you return the tool. So really, if your time is free, the job costs $11.

EDIT to the EDIT: Just realized it was you who started the YANCAS thread on the DL1000 forum - we're right in sync, chain/sprocket/oil-leak-wise.

Last edited by steve68steve; 10-14-2009 at 09:40 PM.
post #7 of 20 Old 10-14-2009, 09:38 PM
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Quote:
Originally Posted by steve68steve View Post
EDIT: the only biatch of the job is having a 32mm socket for the sprocket nut. I found out recently that AutoZone loans such tools out if you leave a deposit - which is refunded when you return the tool. So really, if your time is free, the job costs $11.
Funny thing is, I read that "Loaner Tools" sign as I walked into Autozone a few weeks back to buy my 32mm socket. . .

Oh well, looks like I will be using that puppy again. This time though, I bet I will have to heat that damn Sprocket nut and use a little muscle to get that nut off!

-=Glen=-
(n1xf)

'10 R1200GS
'02 DL1000
'06 KLX250S

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post #8 of 20 Old 10-15-2009, 10:44 AM
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Just an FYI, it's sometimes a good idea to replace the other seals/o-rings under that retainer plate while you're in there. Note, I said sometimes... It just depends on mileage, and if you're feeling up to it. 40k miles into ownership and mine started to leak, but it was the countershaft seal. So while I was in there, I changed everything out that I could get to. 30k miles later and all is still well.

Bill (04 DL1000) (00 KLR650) (05 YZ250)
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post #9 of 20 Old 10-15-2009, 01:54 PM
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Quote:
Originally Posted by PhotoBiker View Post
Funny thing is, I read that "Loaner Tools" sign as I walked into Autozone a few weeks back to buy my 32mm socket. . .

Oh well, looks like I will be using that puppy again. This time though, I bet I will have to heat that damn Sprocket nut and use a little muscle to get that nut off!
LOL. I was at the counter complaining about having to buy a socket for $20-ish dollars that I'd use maybe 3 times when the clerk volunteered the info about the loan. To do the oil seal job, tho, I found a 1 1/4" socket at Tractor Supply for about $6.

When you're muscling that nut off (that doesn't sound so good), don't stand on the brake pedal like I did. You'll have a brake leak a few days later.
post #10 of 20 Old 10-15-2009, 08:46 PM
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Get this. . .

This morning I get ready for my morning commute, check out the bike, there is no oil under it. Get to work, it starts to drip as soon as I get off the bike (very little, mind you). After work, I ride a short distance to pick something up from someone's house, it drips once in their driveway. I stop at a convenience store on the way back, it drips. I get it home, park it in the garage, no drips. Two hours later, no drips.

There is definitely a problem and I will replace the seal, but I am wondering if the cold weather has something to do with the dripping. My garage is much warmer than outdoors. The temps have gotten down to below freezing the past few nights.

-=Glen=-
(n1xf)

'10 R1200GS
'02 DL1000
'06 KLX250S

Check out my [URL="http://www.pbase.com/gsansoucie"]Photo A Day Gallery[/URL] or my [URL="http://www.flickr.com/photos/gsansoucie/"]Flickr Photostream[/URL]
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