How-To Replace Mazdaspeed 6 Propeller Shaft CV Boot

Discussion in 'Mazdaspeed 6 How-To' started by Vansquish, Feb 27, 2020.

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  1. Vansquish

    Vansquish Greenie Member

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    This thread was originally created back on MSF by @myarbro1 in August of 2014:

    I recently asked if anyone knew jack about the CV joint on the driveshaft, aka propeller shaft, in our Speed6’s on FB.

    I have those answers and thought I would share what I have learned.
    To begin, my CV boot was ripped and leaking. The joint and/or boot are not available separately; Mazda only sells the whole driveshaft. I found a post and picture once of someone who had installed a Subie boot on his, so I went that route. Beck Arnley PN#1032824. I do not know who to credit with that finding.

    Looking at the joint once removed from the TC you’ll notice it is a heavy steel part with a soft thin metal at the rear. This part is the boot. The rubber boot part is actually inside; I later figured that the metal part protects it from the nearby downpipe.

    The trick to removing the joint is the take a chisel and hammer, and place the chisel on the shoulder of the soft metal part. Whacking it with the hammer will drive the joint backwards, and the metal cap on the end will get popped off by the shaft. I used a chisel as opposed to hitting the flange directly with a hammer to avoid bending it.

    Inside you will find a circlip that will need to be removed, and the joint will pull off. I took the joint apart and cleaned it in mineral spirits to get rid of the stickiest grease on the fucking planet. DO NOT wipe that shit on your arms; it laughs at GOJO and every other soap/hand cleaner. Keep notice of how the cage comes out; it will physically fit and seem to work with the cage frontwards or backwards, but there is only 1 “right” way. It’s very easy, just pay attention.

    The OEM boot is a bitch to get off. Shown by arrows in the pics, the boot is crimped into that groove on the CV joint. I carefully used a grinder and chisel to thin the metal in two places so I could chop and peel it off.

    Reassemble like you would any other CV joint and boot and you’re done. The rubber boot is close to the downpipe, so we shall see how long it lasts. My dad made a template for a heat shield to slip between the DP and CV; we will get that cut out of some thin metal and give it a go to see if it helps protect the boot long-term.
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  2. Tomas

    Tomas Greenie Member

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    Thinking about doing this.
    How is that boot holding up?
     
  3. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    Ive had this same setup on my car for about 3 years and atleast 20k with no problems. I built a heat shield even tho I am still on OEM Cat/DP just for safety.

    Also not mentioned it the post...Where the red arrow is in the above pics, there is a small ridge between 2 smaller grooves that needs to be removed so the band clamp can be properly seated. I used my bench grinder and slowly converted the 2 grooves into 1 large one.
     
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  4. Grant Eisenhauer

    Grant Eisenhauer Greenie N00B Member

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    My car is doing the same and I was looking to do this before purchasing a new driveshaft. How much grease and what grease did you use in the boot?
     
    Grant Eisenhauer, via a mobile device, Jun 16, 2021
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  5. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    I purchased a boot kit that came with clamps and a tube of grease. It is advised you use all the grease in the tube provided.
     
  6. Grant Eisenhauer

    Grant Eisenhauer Greenie N00B Member

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    Alright thanks man. Is this a similar size to the one that came with your kit. I just bought the boot and clamps. It wasn't a kit
     

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    Grant Eisenhauer, via a mobile device, Jun 17, 2021
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  7. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    I dont recall, I believe the tube was white with no label. 4oz might be too much. 2-3 probably. Fully coat all the parts thoroughly during reassembly. Once you have the joint components assembled apply a liberal coating around the components of the unit before sliding them together. You dont need to apply a glob inside the boot, it does not need to be lubricated.

    Sent from my SM-G930W8 using Tapatalk
     
    SyntheticAtmosphere, via a mobile device, Jun 17, 2021
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  8. Grant Eisenhauer

    Grant Eisenhauer Greenie N00B Member

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    Thanks for the info. I appreciate it. Going to do this install this weekend. Mazda actually discontinued making the driveshaft so this is really the only quick option except for ordering one to be made from the driveshaft shop. I have a couple other questions. When hitting the joint to pop the cap off, it says to hit it backwards from the shoulder of the old metal boot. Do you want to move the joint towards the front of the car or the rear to get the cap to come off? I want be sure before hammering. And could you send me a pic of where you attached the heat shield to protect the boot?
     
    Grant Eisenhauer, via a mobile device, Jul 1, 2021
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  9. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    I dont recall how I opened the joint up, but it could be possible to bottom the cup out and force the inner components to push the cap off. Here is a pic of my heat shield. I fabbed a bracket to create about 1/2" clearance and welded it to the underside of the shield plate. It has tabs to use gear clamps to hold it in position. Painted it with bbq paint.[​IMG]

    Sent from my SM-G930W8 using Tapatalk
     
    SyntheticAtmosphere, via a mobile device, Jul 1, 2021
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  10. Grant Eisenhauer

    Grant Eisenhauer Greenie N00B Member

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    Oh alright that's easy enough. One more thing, other than removing test pipe, o2 sensor and that thick black support bar, is that all that is necessary to get the driveshaft to drop down below the car to where it's easy to work on?
     
    Grant Eisenhauer, via a mobile device, Jul 1, 2021
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  11. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    Mark and disconnect the rear as well as the hanger bearings. I pulled mine out and did the work on my work bench.

    Sent from my SM-G930W8 using Tapatalk
     
    SyntheticAtmosphere, via a mobile device, Jul 1, 2021
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  12. Grant Eisenhauer

    Grant Eisenhauer Greenie N00B Member

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    Yeah that'll make things a lot easier. Thanks for the help
     
    Grant Eisenhauer, via a mobile device, Jul 2, 2021
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