Winter project V7ii seal replacement

[Error]

So over the riding season this year it become pretty clear that I was leaking oil or trans fluid into the clutch housing.

After riding for a while, a fluid stain could be seen between the seam of the clutch housing and the block. It never got to the point of having a drip, but still not a great thing to have going on in a dry clutch bike.






While I probably could have left this for another season or more, I couldn’t help myself and I started down the road of tearing it down once the bike was parked for the winter.

I decided to remove everything from the behind the block as one peice was the best move (I might be rethinking this now lol), and that I would crap the frame, leaving the lower rails and my center stand on to support the bike (again, thinking this was a bad move now).

Stripping the bike down was pretty strength forward. I now have it rigged up and “crabbed”.






Between kids, work, and life in general I expect it’ll be another week before I get any more progress on it, but thought I’d post up where I am. If anyone has any questions or advice feel free to post.

[John A]

It used to be that on small blocks, you would leave the engine and transmission, unbolt everything and roll the front half away on the front wheel. The rear wheel and swing arm ,engine and transmission are left on the center stand with a block under the front of the engine. That’s how I did it on a V65 and I don’t know about later bikes. It looks like you are almost ready to do that.

[guzzisteve]

You got it but how long did it take. Now you can do like the big blocks & just pull back what you need. I have a couple sawhorse type stands I put under frame so not to hang off ceiling.

[Vagrant]

If there was that much oil coming out there the clutch would slip like crazy. Are you sure it isn’t leaking from above.

[kingoffleece]

He's gonna find out soon enough.

[Error]

You got it but how long did it take. Now you can do like the big blocks & just pull back what you need. I have a couple sawhorse type stands I put under frame so not to hang off ceiling.

Honestly not sure how long it took.  I took my time to make sure everything was disconnected. Going very slow as this is the first time I have done this. Now that I am there, without interruption this might take a couple of hours to get to this point again.

If there was that much oil coming out there the clutch would slip like crazy. Are you sure it isn’t leaking from above.

Not from above. Pretty easy to check to see, just pull the starter and see if the clutch housing is dry or not. It a bit damp in there. Eventually it will contaminate the clutch, but it hasn't yet so better to address it now.

   

[Error]

It used to be that on small blocks, you would leave the engine and transmission, unbolt everything and roll the front half away on the front wheel. The rear wheel and swing arm ,engine and transmission are left on the center stand with a block under the front of the engine. That’s how I did it on a V65 and I don’t know about later bikes. It looks like you are almost ready to do that.

I've kind of of backed myself into a corner deciding to keep it on the center stand. I should have suspended the front and rear, then I could drop it however I wanted.

Now I'm going to have to leave the bock, pull everything behind it out, and pick it up and over the cross bar from the lower frame the center stand is on. Not impossible, but there would have been easier ways to do this if I had thought it through. The thought process was to try and leave as many seals as possible in place while addressing this one, but I think I've just made it all more difficult.

We will see how it plays out in a few days when i get a chance to actually do it.

[Tom H]

It looks like you have the frame suspended in the rear by something above. It's something strong tight? I have heard of pulling the entire drive line including engine the way it looks like your trying. Myself I would give up on that.

At the point your at, I would go for pulling the rear wheel, swingarm (with or without rear drive attached. Lighter and easier to work with if the drive is removed) and then get to the trans. You will also need to get it off the enterstand sice you need to work with the frame rails.

Do a search here or Google for how to get the trans out of the V7II and adapt the instructions as needed. It might also help to look up doing the same on a Tonti frame.

Good luck!
Tom

[Error]

At the point your at, I would go for pulling the rear wheel, swingarm (with or without rear drive attached. Lighter and easier to work with if the drive is removed) and then get to the trans. You will also need to get it off the enterstand sice you need to work with the frame rails.

Basically that’s the plan. I’m currently thinking I will pull it all as one unit, but if that becomes an issue I can pull it as sections as well.

What I’m trying to find information on now is the seal
Between the transmission and the clutch housing. Not sure if I can replace it from the housing side or not. If not I’ll have to separate the transmission and replace from the gear side, which I’d rather avoid if I can, I hate dealing with transmissions.