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> CV failure?, How can you tell?
JeffBowlsby
post Dec 2 2008, 01:28 AM
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A few questions...How does a CV fail? Is it progressive or instantaneous? Any warning signs? How many miles does a CV typically last before it fails? When it fails, is it catastrophic? Can it cause an accident if you re at highway speeds or underbody damage? Can our 914s run with just one halfshaft...even temporarily?

I understand stock 914/4 CVs are NLA. What is the best recommended solution?

Got photos of a blown CV?

TIA. (IMG:style_emoticons/default/biggrin.gif)
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So.Cal.914
post Dec 2 2008, 08:27 AM
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I have had two go. It started as a clicking, progressed as a clunking. I would hear it going around a corner, on takeoff, and then when just cruseing around. The first one let go with a BANG, spitting parts all over. Unless you have a posi you are not going anywhere except on the bed of a tow truck. Your HE's will keep it off the ground but it can bang around above and do damage. I guess it could cause an accident if you freaked out and slammed on the brakes. If you repack the grease in your CV's and keep good dust boots on the they will last a long time if you don't they won't. I think that the load they are under will be a determining factor also as to how long they last. Eric Shea was working on a replacement kit. I believe it is ready. Oh and the second one I had going bad I replaced without incident.
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Jeff Bowlsby   CV failure?   Dec 2 2008, 01:28 AM
Phoenix 914-6GT   On our cars you generally can't hear the warni...   Dec 2 2008, 01:36 AM
914Sixer   Listen for a clunking sound on start up and stoppi...   Dec 2 2008, 08:08 AM
Gint   CV failure?, How can you tell? Carnogonomo... Per...   Dec 2 2008, 08:09 AM
So.Cal.914   I have had two go. It started as a clicking, progr...   Dec 2 2008, 08:27 AM
rick 918-S   :lol: I broke one. I had the boots repacked before...   Dec 2 2008, 08:55 AM
Eric_Shea   The clicking sound Paul describes is probably a br...   Dec 2 2008, 08:57 AM
Bruce Hinds   I have had a few fail also and didn't hear the...   Dec 2 2008, 11:37 AM
horizontally-opposed   I've heard the clicking at least twice over th...   Dec 2 2008, 11:52 AM
orange914   kennys broke not long after the new motor. now i ...   Dec 2 2008, 01:51 PM
Phoenix 914-6GT   So it seems you can hear the clicking noise. I use...   Dec 2 2008, 02:09 PM
Jeff Bowlsby   This from Wikipedia and gif of a CV (is this what ...   Dec 2 2008, 02:57 PM
So.Cal.914   Kind of, with x-ray eyes it would. But it is bui...   Dec 2 2008, 03:36 PM
Joe Ricard   I guess I better go change out the clunking CV. Y...   Dec 2 2008, 04:03 PM
Eric_Shea   Here's what they look like inside: http://www...   Dec 3 2008, 04:01 PM
Eric_Shea   I just noticed Jeff asked for photos of a blown CV...   Dec 3 2008, 04:09 PM
jimtab   Both my axles were rebuilt with Eric's CVs and...   Dec 3 2008, 11:02 PM
Joe Ricard   Got rid of my clunk. Had to go through all my sal...   Dec 5 2008, 07:08 PM
Jeff Bowlsby   Can you plese post phoots as a guide to anyone ins...   Dec 5 2008, 07:25 PM
ArtechnikA   914 CV's have a hard life, the inboards especi...   Dec 5 2008, 08:10 PM
Gint   That would have been Dirty Dan's CV Grease. I...   Dec 5 2008, 11:05 PM
Joe Ricard   CV's need extreme pressure lubricant. as well ...   Dec 6 2008, 06:29 AM
Jake Raby   One of my R&D Clients owns a CV joint/ half sh...   Dec 6 2008, 08:55 PM


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