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Discussion Starter #1
Well, looking at my rear tire the past couple of weeks, it seemed like i was getting a build up of junk on my rim, but i couldn't decide whether it was ride grime / break dust / or whatever, but now I've pretty much confirmed that I'm losing grease/oil out the (looking at it from the rear) left side casing. Not tons mind you, but it's noticeable.

I was planning on doing a spline lube job after riding season, but apparently I'm going to have to take it down earlier then I thought. I'm just curious to see if anyone else has had that happen. I would like to order whatever gaskets or O rings I might need before i actually tear into it, if anyone has any recommendations or insight as to what I should buy (Aside from Fergy's writeup, which I'll be using). Where do you guys like to buy your parts online?

Thanks in advance :motorcycl
 

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Sean, I had a leaky seal on the replacement final drive I bought the first time. I first thought I had over greased the splines, but on closer investigation I realized I had some seepage from the final drive around the wheel hub spline seal. If it just started doing this on its own, and you haven't done a spline lube yet, or haven't recently changed your gear oil in the final drive, (some over fill it a little and get some overflow slinging around the rim) then I'd have to guess it is one of your seals. It could be the seal that goes around the spline shaft that mates with the drive shaft, or it could be the one on the wheel hub side. You should be able to tell where it is leaking from when you pull the final drive.

I had a similar leak on my 1500 and found it was the seal on the drive shaft end of the final drive. I ordered the new seal and replaced it myself. So far no leaking. There are a couple places we order parts from. Loads of folks use cheapcycleparts.com although I've never used them. I've used bikebandit.com for most parts orders. Some here don't like them, but I've order gobs of parts for various bikes over the years and never had a problem with them. However, the local Honda dealership ordered the seal for me on the 1500. Cost less than $20 if I remember. I chose to replace it myself. It was way harder to get the old one out than install the new.
 

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Discussion Starter #3
Thanks Fergy, I appreciate the input. I've never had the rear end apart, but the previous owner knew his stuff and did a really nice job taking care of her so I've never been to worried. I kind of assumed the same thing as you since it wasn't doing it at the beginning of the year.

You say you were able to get the drive shaft seal through a Honda dealership huh? I was going to have my Honda obsessed roommate grab the Moly / gear oil for me this week from his place, maybe I'll just go with him and see if I can do it all in one shot, although I think it might be more of a stretch for them to be able to get stuff for a '93. I'm probably just going to order them online.

I found a previous thread where a member had been able to run the O-Rings and such to Home Depot and matched them up? I'm wondering if there's any difference in quality as far as general use vs. automotive applications?
 

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I found a previous thread where a member had been able to run the O-Rings and such to Home Depot and matched them up? I'm wondering if there's any difference in quality as far as general use vs. automotive applications?
I know several here have bought o-rings at ACE hardware, but I don't know if there's certain requirements for grease applications etc.
If you're ordering parts for your bike through the Honda dealership, especially for seals on the final drive, just tell them its a 2006. It's all the same. There are very few parts you need to be year specific on for ordering on the vn750. :beerchug:
 

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Discussion Starter #5
I know several here have bought o-rings at ACE hardware, but I don't know if there's certain requirements for grease applications etc.
If you're ordering parts for your bike through the Honda dealership, especially for seals on the final drive, just tell them its a 2006. It's all the same. There are very few parts you need to be year specific on for ordering on the vn750. :beerchug:
That's good to know. Now all I need to do is find the time to get it done and polish her up again. :smiley_th

I guess this will free up some off season time for another project. I'll have to start thinking about what else i want to tinker with, lol.
 

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I'll try to post how the #17 O-rings on the drive shaft I got at Lowes held up. It's been 10,000 miles and time to do it again.
 

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Discussion Starter #7
Hey, thanks Flite. I actually just ordered the O-Rings and Moly 60 but I'm interested to see how those worked for future reference.
 

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Keep in mind, too, that it may not be all that much of a leak. That oil in the final drive is 80/90 weight, and just a little of it makes one heckuva mess in a very big hurry. I've replaced a couple of O-rings in that final drive housing and am still getting a leak. While it looks like a mess, a check of the amount of oil still in there leads me to believe that the leak isn't a big one.

--FA
 

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X2 FA. I have the same thing with both my bikes. The 93 is a bit more and I'll be replacing the seals and stuff in my final drive as I rebuild her. I noticed my 01' start doing it a bit lately with 13000 on the ticker. As you I just clean it off the rim and keep an eye on my gear oil level. I change it out every other oil change or so.

Would this occur from over tightening the shaft when putting everything back together (after removing the tire) or just from wear on the seals?
 

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My feeling is that its just wear on the seals. The 80ft/lbs of torque you're putting on the axle shaft is only pulling the frame and the axle together along with the spacers and I doubt that force would be exerted against any of the seals, but I don't know for sure. Doesn't seem logical tho. To me, the rubber flap of the seal just gets some wear or hardness and allows some seepage of the gear oil past it. But I'm guessing...
 

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Discussion Starter #11 (Edited)
So i went in for the spline lube today, and found what i figured i would. The gear oil is what seemed to be leaking, and all the O-Rings are in really good shape.

I've seen some talk about replacing this seal



but i haven't been able to find out what the best way is to get the seal out. I didn't want to go any further until i got some advice on it. There was a very minimal amount of gear oil left inside the case, So it had been going on like that for a while.

If anyone of you have taken that seal out, could you give me some tips on how to do it? If it's a super pain in the ass, I may bring the FD to a dealer and have them replace the seals and bearings. I'm I able to just put some screws into the seal and pull it out from that side?
 

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first put your new seal in the freezer...

very carefully drill small holes in the old seal

put small screws in the holes you drilled
not too far...bearing's in there

use a flat head screw driver against the screw heads
to pry the old seal out
I may have just used a pair of pliers:rolleyes:
to pull the seal

lay the final drive out in the summer sun
for an hour or so ... let it get warmed up

a bit of gear oil on the seal lip
I believe I used a 3 or 4 inch pvc pipe coupling
to drive the seal in place, I forget
take your new seal to like lowes before you start and
find the right sized one.
that and a piece of 2by4 and you're on your way dude
it didn't take much force with this method.
 

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Discussion Starter #13
Awesome, that's what I was looking to do, based on a few other responses in old threads. I just wanted to make sure someone had done that successfully! lol.

Thanks for laying that out for me. I'll be back in the thread in a week or some hopefully with a success story.
 

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Discussion Starter #14
It all went together this past week, and everything seems to be trimmed up nicely. No more leakage on the rear wheel, and the whole thing was actually easier then I thought. Did the spline lube while i was back there, all the teeth looked pretty good, but there wasn't a whole lot of moly in there anymore.

:smiley_th
 
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