CV Failure

Engine, Transmission and related drivetrain.
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broke
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Joined: 04 Sep 2003 01:07
Location: New Zealand
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Re: CV Failure

Postby broke » 31 Oct 2017 14:32

Mattndew76 wrote:Is there a better outer boot setup?

Its stamped steel with an inner boot seal. If the stamped retainer gets bent or warped the grease has an escape. Could a machined item be made with a true flat surface making things better from that side?

Like this?

http://www.racereadyproducts.com/cv-boo ... e-cv-boot/

Assuming we are still looking at the boot being the culprit.


What's interesting is that in this setup the cap screws tighten down directly onto the stamped steel section.

If you look at most OEM setups there is flat piece of steel to spread the load. Maybe a steel ring with bolt holes would help the grease seal?

#2 on this picture shows one common setup - the spreader spans two bolts, obviously several are needed per CV.
CVcapture.JPG
CVcapture.JPG (20.6 KiB) Viewed 246 times
The IDx 10 concept is based on the 510 in the same way that the urinating I was doing last night was based on a 30 yr old single-malt scotch.
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icehouse
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Re: CV Failure

Postby icehouse » 01 Nov 2017 14:07

Well I did it! Pulled my CV axles out. Since I was installing a R190 LSD anyways. The new 4.44 gears are way better but most of all I feel the drive train is back to normal. It doesn't have that weird off throttle bounce. At the track I love to drive my car like I stole it, aka big burnouts, clutch kicks that kinda stuff. After reading the CV installation instructions and seeing "Not for drag race launches" I haven't been having as much fun. So to me a slight vibration at some speeds is worth the correct feedback, no back lash noise and being able to do burnouts.
"People don't like it when shit doesn't match their rule of thumb." Sam

Three B's Racing
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Re: CV Failure

Postby Three B's Racing » 27 Nov 2017 05:54

Well, I broke down and purchased a set of Troy's newly designed axles with zero axle spline to CV rotation. New design looks like a mirror image of Futofab axles as far as spline design.
Axle.jpg
Axle.jpg (232.86 KiB) Viewed 119 times


Installed 2004 Subi CLSD with 3:90 ratio
New Diff.jpg
New Diff.jpg (313.38 KiB) Viewed 119 times


and new Whiteline crossmember bushings.
Bush.jpg
Bush.jpg (332.91 KiB) Viewed 119 times


Next step is driving and seeing what I get out of the new axles, I also regreased all the CV's using Redline CV-2.
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
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TheHeretic
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Re: CV Failure

Postby TheHeretic » 27 Nov 2017 09:09

Let me know if you get any vibration upon acceleration after the install of those bushings. I have the same ones and put the narrower one on top like you and after many measurements of my driveline angle came to realize that I need to swap them and put the thicker one on top which should get my angles back in line. Not tested yet mind you but the angles would improve so the vibration should lessen. :?
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Three B's Racing
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Re: CV Failure

Postby Three B's Racing » 28 Nov 2017 04:23

TheHeretic wrote:Let me know if you get any vibration upon acceleration after the install of those bushings. I have the same ones and put the narrower one on top like you and after many measurements of my driveline angle came to realize that I need to swap them and put the thicker one on top which should get my angles back in line. Not tested yet mind you but the angles would improve so the vibration should lessen. :?


The diff crossbar bushings I didn't change (it was the rear crossmember bushings) and I have been running those for about 5 years now and never had any vibration upon acceleration.
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
- John Lennon


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