 Blew up another CV joint..., What to do? |
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| yarin |
 May 23 2008, 09:34 PM
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#1
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'14-X'in FOOL  Group: Members Posts: 988 Joined: 13-May 03 From: Guttenberg, NJ Member No.: 693 Region Association: North East States  |
So I need some advice on this one:
2 years ago a CV went on me during an autocross, drivers inside (tranny side). The bearing race cracked and well, u know what happens then, no power transmitted means flatbed tow truck home. Replaced all 4 CVs with the kit from PMB performance. All was well.... fast forward to today, the exact same joint blew. I haven't dissasembled for a post mortem but it isn't pretty. Luckily i flat tow the car to events now so getting home wasn't a problem. The car definitely took a beating today, put about 45 total runs (autox school x 2 drivers) on the car before it let go on Avon Tech RA tires, a few areas of the course induced some slip/grip stress. Motor is relatively stock, probably putting out about 100-110hp crank. AutoX definitely put exess wear and tear on the part, running semi-sticky tires. So what should I do, replace with another kit? OEM? Beef it up with 944 or heavy duty CVs? Any of you fellow autoxers have a solution that won't cost me a fortune? Thanks! |
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| yarin |
Jun 10 2008, 12:21 PM
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'14-X'in FOOL Group: Members Posts: 988 Joined: 13-May 03 From: Guttenberg, NJ Member No.: 693 Region Association: North East States |
Bump.. anyone care to share their CV installation stories? How much rotational slop is OK?
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| racerx9146 |
Jun 10 2008, 05:37 PM
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good design never goes out of date.. Group: Members Posts: 174 Joined: 1-January 04 From: Sacramento, CA Member No.: 1,483 Region Association: Northern California |
I have a lifted Vanagon Syncro with 230 HP Subaru SVX motor running the original CV's. I drive it hard and the CV's are still holding. They have tons of rotational slop. Other Vangon guys seem to snap em constantly. Same with my 914. 20 years of beating on the street and the autocross track the still holding up!
I think its a mystery why some fail and some last forver. "knock on wood" Daron QUOTE(yarin @ Jun 10 2008, 11:21 AM)  Bump.. anyone care to share their CV installation stories? How much rotational slop is OK? |
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Posts in this topic
yarin Blew up another CV joint... May 23 2008, 09:34 PM
Crazyhippy I've put 400+HP through the Renegade Hybrids s... May 23 2008, 11:48 PM McMark We definitely need some pictures and a postmortem ... May 24 2008, 12:02 AM Eric_Shea
Me too. :blink: May 24 2008, 12:27 AM
Jeff Hail
Me too. :blink:
Did you get your CV from tha... May 24 2008, 12:30 AM yarin
Me too. :blink:
Did you get your CV from th... May 24 2008, 07:32 AM ericread
[quote name='Jeff Hail' post='1036159' date='May ... May 24 2008, 11:22 AM davep Does that CV have the axle go to extreme angles a ... May 24 2008, 07:42 AM DNHunt Yarin
Sorry about the CV. What pressures are you ... May 24 2008, 07:54 AM yarin Here are pics. The bearing race cracked, exact sam... May 24 2008, 11:22 AM yarin The rear is pretty flat during cornering, suspensi... May 24 2008, 11:26 AM Eric_Shea
Mark and I had been investigating an incedent wh... May 24 2008, 11:29 AM Jeff Hail
Eric, I have been.... and priming,powdercoatin... May 25 2008, 12:59 AM Eric_Shea
Yes and No. Some cars still have their stock CV... May 24 2008, 11:40 AM yarin
Yes and No. Some cars still have their stock C... May 24 2008, 11:44 AM ericread
Yes and No. Some cars still have their stock C... May 24 2008, 11:57 AM Eric_Shea These are areas of concern that I see:
Looks like... May 24 2008, 11:48 AM yarin Keep in mind that after the CV failed, it was flat... May 24 2008, 11:57 AM kwales Couple of thoughts..
The beetle cv's don... May 24 2008, 12:08 PM Eric_Shea
We don't mfg. the joints. We machine 2 of t... May 24 2008, 12:19 PM Eric_Shea
That makes a ton of sense... forgot about that. ... May 24 2008, 12:20 PM brer are those Lobro CV's you are using?
if they a... May 24 2008, 02:41 PM davep Is there any wheel hopping on the course? Somethin... May 24 2008, 02:54 PM yarin
Is there any wheel hopping on the course? Somethi... May 24 2008, 03:26 PM Eric_Shea Those are German "Meyle" not EMPI. We c... May 24 2008, 03:37 PM brer Meyle is a German company that does not produce th... May 24 2008, 04:00 PM Eric_Shea I can switch to Lobro no problem if that's dee... May 24 2008, 05:20 PM Joe Ricard I think the materails being used these days are no... May 25 2008, 07:32 AM davep Being a physicist, I can understand what Jeff is t... May 25 2008, 09:22 AM Eric_Shea
Alright, alright... so you know everything! ... May 25 2008, 12:31 PM Jeff Hail
(anybody else hate this guy?)
One more thing.... May 25 2008, 04:38 PM ericread
(anybody else hate this guy?)
One more thing... May 25 2008, 08:50 PM yarin Thanks for all the info guys! Joe has put way ... May 25 2008, 12:41 PM kwales Eric,
CV joints are a lot like ball and roller be... May 25 2008, 02:43 PM Eric_Shea
:blink: Thanks Ken...
I was just going off Jef... May 25 2008, 02:49 PM yarin Hey Jeff, thanks for your in depth analysis.. but ... May 25 2008, 05:59 PM kwales I don't hate Eric....
Anybody who does, is do... May 25 2008, 07:08 PM Eric_Shea
Thanks Ken :wub:
But I think Jeff misplaced an ... May 25 2008, 09:11 PM yarin All great points once again! How can I manuall... May 25 2008, 10:41 PM Jeff Hail
All great points once again! How can I manual... May 26 2008, 01:28 AM HAM Inc Make sure the tranny is centered between the trail... May 26 2008, 12:11 PM yarin Eric sent me a new CV no charge, got it a few days... Jun 7 2008, 03:16 PM yarin more.. Jun 7 2008, 03:19 PM yarin Here is a quick video I shot illustrating the conc... Jun 7 2008, 03:22 PM kwales All of mine slip on without pressing. That does l... Jun 7 2008, 05:51 PM yarin The tranny mounts are the solid hard mounts, engin... Jun 8 2008, 09:45 PM John I was about to reply that mine typically slip onto... Jun 10 2008, 02:47 PM jhadler Just thinking out loud here...
Do you run on a pa... Jun 10 2008, 06:26 PM ericread
Just thinking out loud here...
Do you run on a p... Jun 11 2008, 08:42 AM J P Stein Like HAM I think there is something specific to yo... Jun 11 2008, 10:55 AM |
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