 CV failure?, How can you tell? |
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| JeffBowlsby |
 Dec 2 2008, 01:28 AM
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914 Wiring Harnesses  Group: Members Posts: 8,527 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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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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| ArtechnikA |
Dec 5 2008, 08:10 PM
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rich herzog Group: Members Posts: 7,390 Joined: 4-April 03 From: Salted Roads, PA Member No.: 513 Region Association: None |
914 CV's have a hard life, the inboards especially, since they sit aft of the engine and directly over the exhaust. Due to the sliding/rolling motion and transmitted torque, proper lubrication is essential and there are very few lubricants that will do the job properly.
LubroMoly makes a moly-disulphide CV joint grease that I trust, and Swepco 101 is at least as good. Personally, I will use no others, although some people have had good results with some other products. A long while back someone was selling a blue Mobil grease he'd had good results with but I have no personal experience with it - and I sure couldn't tell you the Mobil part number. I do recall that it was an industrial product not packaged for consumer use (i.e. - it came in 50-lb tubs or somesuch...) All the usual suspects will carry the LubroMoly and/or Swepco 101. Wear gloves; in addition to the general enervating goo-iness of the process, the moly content will want to stain what it touches. This is not an application for standard wheel bearing grease, not even Mobil-1 synthetic grease which I like for many other applications. |
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Posts in this topic
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 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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