Well 1170 miles on my cv joints. Driving last evening took off slow then gassed it in first. Let off shift to second and hit the gas again and pop. Cv cage broke.. well that sucks.. anyway time to replace with some other setup. I have some extra CVS and will install but wanting a more permanent solution.
For reference 2.4 -6 with S pistons, solex cams, ported heads. Click to view attachment
Full Version: 1170 mile cv joint failure
cage may have had a small crack? was it a new joint?
QUOTE(930cabman @ Aug 25 2022, 12:12 PM) 
cage may have had a small crack? was it a new joint?
Yup brand new..
Where did you get them? What Brand? What -6 Engine?
QUOTE(mb911 @ Aug 25 2022, 12:52 PM)
Well 1170 miles on my cv joints. Driving last evening took off slow then gassed it in first. Let off shift to second and hit the gas again and pop. Cv cage broke.. well that sucks.. anyway time to replace with some other setup. I have some extra CVS and will install but wanting a more permanent solution.
For reference 2.4 -6 with S pistons, solex cams, ported heads. Click to view attachment
They look like 914-4 CV joints. I would upgrade to 100mm CV joints.
QUOTE(Eric_Shea @ Aug 25 2022, 01:42 PM)
Where did you get them? What Brand? What -6 Engine?
If these are repurposed T1 CVs, those seem to have a tendency to explode when used in a 914. Seen it before ...
Sorry, I didn't see the 2.4S engine in the first thread...
I'd go this route:
http://www.914world.com/bbs2/index.php?showtopic=91963
I'd go this route:
http://www.914world.com/bbs2/index.php?showtopic=91963
From outside to inside.
1. 1976 911 Hub
2. 1976 922 stub axle
3. 1985 944 turbo CV joint.
4. 914-4 axle - turn it in the lathe and add about 15mm to the space beyond the splines.
5. 1985 944 turbo CV joint
6. 1976 911 coarse splined drive flanges.
The 944 turbo CV joint is a six bolt joint that is much thicker than a 914 cv joint, but the internal splines are the same as a 914-4. So the CV joint is capable of handling way more power than a stock 4 cylinder joint.
The axle has to be modified to accommodate the thicker 944 turbo CV joint.
The 76 911 hub, stub axle and drive flange are the same bolt pattern as the 944 turbo CV, and they use the same outer wheel bearing as a 914. So this all bolts together. You have to use 944 turbo CV joint gaskets and CV bolts.
The coarse splined drive flanges come from an early 915 transmission, but they will bolt into a 901 transmission with no modification.
You can use 944 turbo stub axles, but you have to add a spacer on the stub axle or the bearing won't tighten up.
Hope that helps.
Clay
1. 1976 911 Hub
2. 1976 922 stub axle
3. 1985 944 turbo CV joint.
4. 914-4 axle - turn it in the lathe and add about 15mm to the space beyond the splines.
5. 1985 944 turbo CV joint
6. 1976 911 coarse splined drive flanges.
The 944 turbo CV joint is a six bolt joint that is much thicker than a 914 cv joint, but the internal splines are the same as a 914-4. So the CV joint is capable of handling way more power than a stock 4 cylinder joint.
The axle has to be modified to accommodate the thicker 944 turbo CV joint.
The 76 911 hub, stub axle and drive flange are the same bolt pattern as the 944 turbo CV, and they use the same outer wheel bearing as a 914. So this all bolts together. You have to use 944 turbo CV joint gaskets and CV bolts.
The coarse splined drive flanges come from an early 915 transmission, but they will bolt into a 901 transmission with no modification.
You can use 944 turbo stub axles, but you have to add a spacer on the stub axle or the bearing won't tighten up.
Hope that helps.
Clay
Thanks.. a few things I decided after this happened.
A. I have to many cars to maintain. My sons have 5 total cars themselves and 2 of them are 944s
B. I have a non finished 928s4 that needs to go to a new home to get some space back
C. Going to just put a stock cv back on and take it easy the rest of the driving season.
D. Going to a 911/914 setup this winter. @mepstein has already provided most the parts to make this happen. I just need some time.
E did I already say I have to many cars to maintain lol? Anyone need a really nice 928s4 project
A. I have to many cars to maintain. My sons have 5 total cars themselves and 2 of them are 944s
B. I have a non finished 928s4 that needs to go to a new home to get some space back
C. Going to just put a stock cv back on and take it easy the rest of the driving season.
D. Going to a 911/914 setup this winter. @mepstein has already provided most the parts to make this happen. I just need some time.
E did I already say I have to many cars to maintain lol? Anyone need a really nice 928s4 project
Yes, a 928 S4 would be a nice project and yes, I want one (already have a complete drive train from a 928).
But, I have too many cars and too many projects. So, I guess I don't need one.
But, I have too many cars and too many projects. So, I guess I don't need one.
QUOTE(Jack Standz @ Aug 26 2022, 08:40 AM)
Yes, a 928 S4 would be a nice project and yes, I want one (already have a complete drive train from a 928).
But, I have too many cars and too many projects. So, I guess I don't need one.
Well I have it listed on market place and have some great walk around and start up videos.
https://www.facebook.com/marketplace/item/435211755239175/
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