Issues with Beetle CV joint failure? |
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Issues with Beetle CV joint failure? |
stownsen914 |
Apr 22 2015, 09:10 AM
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#1
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Senior Member Group: Members Posts: 913 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
Hi all,
With 914 CV joints being NLA now, I recently tried out Beetle CV joints when my old ones wore out on my 914/6 race car. I understand they are made by EMPI. I am using the same 914 axles I've used for years. After about 30 minutes of track time, one of the Beetle joints failed (the inner one on the right side of the car). Basically the joint seems to have been plunging too far inward and the lateral force seems to have just forced the joint apart. No broken parts are immediately apparent. The joint seems to have just fallen apart! I also noted that the inner races of the joints seem to be gouging the output flanges on the trans. This occurred on both sides fo the car. I had noticed some of this wear previously, but it seems to have accelerated significantly with the Beetle joints (especially considering only 30 minutes of use). See the pics below. It's hard to tell from the pics, but the wear spots are basically gouged into the flanges about a millimeter or so deep. I never had any failures or unusual wear with the 914 joints I used for years, so I am at a loss what happened here. Anyone have a similar issue with Beetle joints? I'm wondering if I should be trying Lobro or other joints, or a different setup entirely ... Attached image(s) |
naro914 |
May 12 2015, 02:17 PM
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#2
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Losing my mind... Group: Members Posts: 2,476 Joined: 26-May 06 From: Charlotte, NC Member No.: 6,073 Region Association: South East States |
Scott
First of all, sorry to hear all the issues you had at Monticello last weekend. Nadine said she really felt bad for you...not the best way to start your PCA Racing career!! Hope you can sort out all the issues... Regarding CV's, what engine are you running and how much hp? I ask because I recently replaced the CV's on our car. Originally, I was just doing a CV service, re-lubing up everything. But the races and everything in the CV's were so worn down, I decided to replace them. I also got new axles from Sway-Away since the ones that were in there were too short and being overextended. Because of the higher hp, I went with very beefy CV's and much bigger output flanges - from something like a later 930 or so, can't remember where they came from but I do have a spare CV in he trailer and can get the part # if you're interested. My mechanic got these for his RSR and has not had a problem, so I decided to go that route. Problem is...you need to find all the correct individual pieces, from output flange, CV, axle, CV and stub axle at the wheel that all fit together correctly. But if you're running a bigger/stronger engine (I saw your in GT4?), I would go with stronger CV's... Just my thoughts... |
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