Inner CV boots leaking- Problem and fix - EvoXForums.com - Mitsubishi Lancer Evolution X Forums
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Evo X Transmission & S-AWC System Discussion for transmission, axle, driveshaft, and related systems that are unique to the Evo X. IF THE TOPIC IS COMMON WITH OTHER LANCERS, PLEASE POST IT IN: '08+ Lancer Common.

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Old 05-05-2014, 01:05 AM   #1
Fox151
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Exclamation Inner CV boots leaking- Problem and fix

There is something about this on the "other forum" but I wanted to bring it up here because, well, I like it here better and maybe it will help someone out.

While I was underneath my car last week changing the oil, I did a quick 7 level inspection on everything like I always do and I saw that my passenger inncer CV boot was leaking grease and slinging it all over the block. Not good. Long story short, after further investigation I found out that all of the inner CV boots were leaking. All 4.

After looking up some info about those metal CV bands it turns out that the bands are pretty cheap and tend to need replaced at around 30,000 Miles which is right where my car is at right now.

First thing I did was try to order the parts from Mitsu. I'm sure you all have an idea how that went. They only sell the clamps in a boot kit which will cost you $64.00 a pop. Yeah I don't think so. Next I went to Autzone, Advance Auto, and O'reilly's and proceeded to try about 6 different types of aftermarked CV bands before finally giving in and realizing it just wasn't going to work out. I called a local CV axle shop and the guy basically said: "come leave the car here and I'll let you know when I get around to it." I think not.

Finally after a whole week of frustration I finally went to NAPA auto and low and behold they had the exact clamps I needed. One eared adjustable type clamps that can be crimped with the CV band tool.

So basically to fix this you'll need:

Clamps- I'm going to get the exact NAPA part number for you guys on this probably tomorrow.

CV boot clamp pliers. These: http://shop.advanceautoparts.com/p/a...ontent=9020373

CV axle grease. This is a special type of grease. It's graphite grease or something or other. You can get it at any auto parts store. Basically I got the grease and a needle fitting for a grease gun. When you removed the old clamp you can just slide the fitting in and pump grease into the boot to replace what you lost.

Cut the old green ones off and attach the new ones. It's very simple. You just wrap the clamp around and attach it as tight as you can and then use the pliers to crimp the ear which secures the clamp. Make sure to clean up all the old grease so you can check and make sure they don't re-leak. Had mine on there since wednesday and they're holding strong.

Done.

Here's a video that shows how to install the clamps:
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Old 07-30-2014, 04:58 PM   #2
rssundar
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Very useful. thanks.


Do you have the NAPA part # for the clamp ?
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Old 07-30-2014, 05:13 PM   #3
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I had mine replaced under warranty
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Old 07-30-2014, 08:45 PM   #4
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my warranty was long gone.
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Old 07-31-2014, 12:20 AM   #5
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Filled mine up with Redline CV-2. Sad that Mitsubishi not only uses poor clamps, but also uses poor grease. Grease poured out like thick motor oil lol. Pumped the Red stuff in, and it holds up during track weekends without issues...
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Old 07-31-2014, 03:19 PM   #6
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what clamps did you get ?
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Old 08-01-2014, 05:35 PM   #7
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What a pain, I checked mine last week and low and behold both are leaking as well but mainly my driver side. At what point does it become critical that you get more grease in there and seal things up? I don't drive in wet weather often and never in snow but I'm assuming that lack of grease will be bad news at some point. Guess this goes on the list first thing next week!
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Old 08-01-2014, 06:42 PM   #8
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I bought the mitsubishi boot repair kit and had a shop install it. It was both my inners

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Old 08-02-2014, 12:06 AM   #9
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Originally Posted by rssundar View Post
what clamps did you get ?
Honestly, I went to Napa and picked up their best clamps and did the job that way with the Redline CV-2...just wait until you do yours...might see that your grease pours out like oil lol...
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Old 08-02-2014, 12:16 PM   #10
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I ended up changing all four inner small 1" clamps which were not tight enough and the grease was seeping out. It was very hard to find the ear type clamps for some reason. No one carried it, all local auto stores : Autozone, NAPA, O'Reilly & pepboys carries only the universal band clamp which needs a special tool. Found "Norther Foreign Autoparts" who had the ear type crimp clamp with multiple raised teeth which worked out great. Couldnt find any high performance CV grease, ended up using generic brand cv grease. Used a syringe with flexible tube to pump the grease into the boot.

gr8dc2b was right about the old grease it poured out like oil. I ended up adding zip ties along with the clamps for added strength.
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