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Zero419 Samba Member

Joined: January 11, 2008 Posts: 2160 Location: PA
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toomanyveedubs Samba Member

Joined: November 26, 2007 Posts: 596 Location: Great White North
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Posted: Sun Mar 20, 2011 10:54 am Post subject: |
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Front or rear CVs?
If front, I would just by the complete axels from van cafe(lowbro).
So much cleaner/easier than rebuilding the old ones.
I doubt a ripped boot would cause vibration. |
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syncrodoka Samba Member

Joined: December 27, 2005 Posts: 12424 Location: Santa Cruz, CA
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Posted: Sun Mar 20, 2011 10:55 am Post subject: |
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The joint is probably dry and needs to be repacked and a new boot. Disassemble it and inspect for pitting, wear marks or a cracked cage.
Since he has an auto it is a rear axle. |
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Howesight Samba Member

Joined: July 02, 2008 Posts: 3429 Location: Vancouver, B.C.
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Posted: Sun Mar 20, 2011 10:59 am Post subject: |
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I reckon you will have an easy repair. Just disconnect the CV from the drive flange, remove the cirlip, and drive the CV joint off the drive shaft with a drift against the inner part of the CV joint. Mark it (I put zip ties through the various holes to mark the orientation) and then disassemble and clean the CV parts. The orientation of the inner part, the "cage' and the outer part is important. The location of the individual "ball bearings" is unimportant.
Check the inner part and outer part for galling. A small shiny spot is OK. A serious and noticeable divot is not OK. It's quite amazing how much abuse the CV joints can take without being destroyed.
Use plenty of moly grease on reassembly. To avoid the most common problem with re-built CV's, (bolts loosening), install the CV joint with 2 bolts and use Q-tips to clean out the remaining 4 bolt holes, (use Brake Clean) and use blue loc-tite on the bolts and install. Then remove the two remaining bolts and repeat with the cleaning and loc-tite. |
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Zero419 Samba Member

Joined: January 11, 2008 Posts: 2160 Location: PA
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Posted: Sun Mar 20, 2011 11:35 am Post subject: |
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| Howesight wrote: |
I reckon you will have an easy repair. Just disconnect the CV from the drive flange, remove the cirlip, and drive the CV joint off the drive shaft with a drift against the inner part of the CV joint. Mark it (I put zip ties through the various holes to mark the orientation) and then disassemble and clean the CV parts. The orientation of the inner part, the "cage' and the outer part is important. The location of the individual "ball bearings" is unimportant.
Check the inner part and outer part for galling. A small shiny spot is OK. A serious and noticeable divot is not OK. It's quite amazing how much abuse the CV joints can take without being destroyed.
Use plenty of moly grease on reassembly. To avoid the most common problem with re-built CV's, (bolts loosening), install the CV joint with 2 bolts and use Q-tips to clean out the remaining 4 bolt holes, (use Brake Clean) and use blue loc-tite on the bolts and install. Then remove the two remaining bolts and repeat with the cleaning and loc-tite. |
So, what you are saying is, in summery, leave the tire side connected, drop the trans side (bad side), mark, disassemble, clean, and reassemble with new boot and flange? _________________ 1987 Westy Auto Bostig 2.0 Ztec |
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Wildthings Samba Member

Joined: March 13, 2005 Posts: 52739
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Posted: Sun Mar 20, 2011 11:37 am Post subject: |
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How much lift do you have? Maybe you should consider using joints that can handle more angularity and/or a longer axle. Clocking the joints correctly helps at higher angles as well.
It usually take a while for a joint to be damaged by a ripped boot, so your noise is more apt to be caused by the angle you are running your joints at than by the lack of lubrication.
Last edited by Wildthings on Sun Mar 20, 2011 11:38 am; edited 1 time in total |
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randywebb Samba Member

Joined: February 15, 2005 Posts: 3815 Location: Greater Metropolitan Nimrod, Orygun
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Posted: Sun Mar 20, 2011 11:38 am Post subject: |
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Clocking ?? _________________ 1986 2.1L Westy 2wd Auto Trans. |
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insyncro Banned

Joined: March 07, 2002 Posts: 15086 Location: New York
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Posted: Sun Mar 20, 2011 11:44 am Post subject: |
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| Wildthings wrote: |
How much lift do you have? Maybe you should consider using joints that can handle more angularity and/or a longer axle. Clocking the joints correctly helps at higher angles as well.
It usually take a while for a joint to be damaged by a ripped boot, so your noise is more apt to be caused by the angle you are running your joints at than by the lack of lubrication. |
X2
If you have maxed the droop of the suspension with whoevers springs, shims or complete suspension packages, you have also taken the CV joints to the limit and repacking will be great to keep them lubed, but the excessive angle will destroy stock CVs quickly.
I use limiting straps on lifted vans to not allow this to happen.
Research the 930 CV upgrades and front outer 16" joints for a Syncro. |
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syncrodoka Samba Member

Joined: December 27, 2005 Posts: 12424 Location: Santa Cruz, CA
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Zero419 Samba Member

Joined: January 11, 2008 Posts: 2160 Location: PA
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Posted: Sun Mar 20, 2011 1:29 pm Post subject: |
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| Wildthings wrote: |
snip
It usually take a while for a joint to be damaged by a ripped boot, so your noise is more apt to be caused by the angle you are running your joints at than by the lack of lubrication. |
Ripped boot as in, completely separated from flange, flinging grease around its immediate surroundings, and exposing insides to plain view.
I think I will fix this one temporarily, Then look into a more permanent fix.
I'll start with just the boot and grease. When I get it apart and notice I need replacement, I'll order the Joint.
I've got lots to do and little time to do it. (I'm currently taking a break from tiling my kitchen).
I know, no time to do it right, but plenty of time to do it twice. At least I know have something to research while I am at work.
Thanks. _________________ 1987 Westy Auto Bostig 2.0 Ztec |
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Zero419 Samba Member

Joined: January 11, 2008 Posts: 2160 Location: PA
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Posted: Mon Mar 28, 2011 3:19 am Post subject: |
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Man, that is a dirty job!
Removed, cleaned, inspected, replaced boot, lubed, reinstalled.
I left the wheel end on, there was one stubborn bolt that wouldn't break free.
The high frequency vibration seems to be gone. I'll find out more once I hit the highway.
The axles are Lobro. The inner boot on the other side is starting to crack.
Looks like I'll be doing this again soon. _________________ 1987 Westy Auto Bostig 2.0 Ztec |
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Jon_slider Samba Member

Joined: April 11, 2007 Posts: 5091 Location: Santa Cruz, Crowdifornia
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Posted: Mon Mar 28, 2011 8:59 am Post subject: |
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> I'm guessing this was caused by my GW lift springs
> 1987 Westy 2.1 Auto
not likely unless your hub to fender height is >20.5", AND your CV is broken.
out of curiosity, what is your passenger rear hub to fender measurement with the GW 2wd lift springs?
fwiw, a torn boot that loses grease is a setup for a broken CV.
I went through a mud puddle with a torn boot, my CV started clacking, and on a tight turn, it broke.. front outer on a syncro.. Muddy water poured out of the boot when we removed the axle. I dont think muddy water is a very good CV lubricant..
torn CV boots should be replaced to prevent being stranded. |
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Zero419 Samba Member

Joined: January 11, 2008 Posts: 2160 Location: PA
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Posted: Mon Mar 28, 2011 9:05 am Post subject: |
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If I remember correctly, somewhere in the 18" range.
I'll get a measurement up soonish. _________________ 1987 Westy Auto Bostig 2.0 Ztec |
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