ATV Connection Magazine

CV Boot leakage?

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Posted by: Andy Bassham

One of the clamps might not be tight. I only had leakage once, and it was a small tear in the right boot. It had torn from the inside though. Some of the little parts in the cv broke and tore it. If I were you, I would have it taken in and fixed pretty quick though. CV's are expensive repairs if they mess up, but the boots aren't too bad by themselves.

Posted by: TG1

250CAT
Andy has given you some good advice. The inner rear CV boot on my 250 looks like a tiny, wienie bit of grease leaks out (every so often). This boot was replaced along with the outer back in Oct. The dealer who did the work never tightened the inner boot clamp correctly so it was leaking a bit after I got the quad back. BE CAREFUL WHEN DEALING WITH THE DEALER! So are good, so are fair and so want to rip you off (like the one I took mine too). Good luck and happy riding.

Posted by: TG1

The clamps on the boots could just be a little loose. Try tightening them first. I ended up paying $250 (if I remember correctly... it's posted somewhere on the forum) due to the fact the dealer change both the inner and outer boots at a price of $55 an hour. I WILL NEVER DO BUSNINESS WITH THEM AGAIN. They even tried charging me for a light bulb (the ATV was under warranty)!

Posted by: Farmr123

Just remember, if grease is getting OUT, moisture may be getting IN. Best to get it taken care of ASAP. My boots were dry as a bone until I tore one. If everything is right, there should be NO leakage around the boots.
Be sure it isn't the output shaft seals leaking, especially if it is both sides. Would hate for you to tear into it, and find out it was something else.

Posted by: Farmr123

You need special pliers to install or tighten the clamps.
There are several places you can send your axle to be rebuilt.

www.cvaxles.com is a rebuilder of ATV cv joints. They will do all the work, and have rebuilt axles for sale.

www.gorilla-axle.com is another place you could try. These people sell boot kits, or will do the rebuilding for you, and their work is 100% lifetime guaranteed for as long as you own your machine. As far as I know there are no restrictions as to what mods you have to your bike or conditions you drive it in.

If all it is is oozing a little, the joint itself should be OK, so about anybody who does work on CV joints should be able to do the job.

Posted by: mudcat47537

I always take my axles out and take them to an automotiv cv axle rebuilder to have torn boots replaced. It is much cheaper less than $20 to clean, replace, and repack with grease. The boots that the shop that I go to uses a heavier boot too. I have never tore one of theirs. They are simple to remove takes about 20 minutes.

Posted by: 250CAT

I recently noticed dust sticking to the inner boot connection (I don't know the part name, but right where the inner rear boot connects with the tranny.) I wiped it down and smelled grease. I did not think much of it, washed my bike and put it away for the weekend. I am more concerned that it has happened again. I checked the boots, and neither are punctured or cracked. I am really concerned that this is happening on both rear boots. This can't be normal can it? I think that the only place that the boot can be leaking is right at the final seal. What the heck is going on????

Posted by: 250CAT

I am not having any real leakage--no grease spun off on other parts. It seems to be seepage from the clamp. The thing that really makes me question what is going on is the fact that it is happening on both inner boots at the exact same place at the exact same time. My bike is less than 8 months old. I am very meticulous about matinence and to be honest --IT REALLY PISSES ME OFF!

Posted by: 250CAT

My dealer here is terrible--so terrible that I drove 2 hours to buy it from a different dealer. I would either drive it back to the original dealer, or take it to an independent shop we have in town. The independent shop has a pretty goor reputation. What did you pay to have the boot replaced? I am still not convinced that it needs anything more than a tightening of the boot clamp. Why do you think that it would be happening at the same place on both boots at the same time?

Posted by: 250CAT

How do you go about tightening the straps?

Posted by: 250CAT

Thanks, I am sure it is the boots. The grease has a distincive smell versus motor oil.

Posted by: 250CAT

I think that you have the best overall, solution. I am pretty mechanical and have removed CV shafts from cars before. Are there any tricks that I might need to know? You think that the axle shop would do the whole thing?