 Brand new CV's for the 914/4...using Type I CV's.., pictures of mods, this is how I did it..... |
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| Brad Roberts |
 Jun 26 2006, 04:43 PM
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#21
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914 Freak!  Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None  |
The 914 CV has a bevel washer that keeps spring tension against the CV when you push it onto the axle. This helps keeps the clip in place on the other side.
Funny part of all this: Sway A Way makes axles with no clips and no springs. The CV's float on the axles. What are they going to do? Come out of the CV ? No. B |
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| SirAndy |
Jun 26 2006, 04:45 PM
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#22
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Resident German Group: Admin Posts: 41,681 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Brad Roberts @ Jun 26 2006, 03:43 PM)  The 914 CV has a bevel washer that keeps spring tension against the CV when you push it onto the axle. This helps keeps the clip in place on the other side. oh, i see ... then, *NO*, don't change anything as the one axle you already did was PERFECT with all the washers and clips etc ... just make the second one to match the first one ... (IMG:style_emoticons/default/beerchug.gif) Andy |
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| jk76.914 |
Jun 26 2006, 04:59 PM
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#23
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Senior Member Group: Members Posts: 809 Joined: 12-April 05 From: Massachusetts Member No.: 3,925 Region Association: North East States |
Here're interesting comparisions between CV joints from various applications:
http://www.blindchickenracing.com/How_to/C..._joints_101.htm I measured a brand new 914 axle against these, and it measured 22 degrees of angularity- versus only 12 degrees with the Type 1. I guess that doesn't matter, since these are working well for you. Note that the Type 4 (by which this guy means 924 and 944) also has 22 degrees, but with the 100mm diameter- too big. And the only one with more is the 930 CV at 25 degrees (108mm). Interesting. When I get a minute later tonight, I'll lookup my other measurements of the 914 CV and post them. The 914 tranny a VW unit????? That's the first I heard that! Jim |
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| Brad Roberts |
Jun 26 2006, 05:28 PM
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#24
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
It says VW all over it. It is not much different than the T1 bug box. I have been involved with several Hewland/914 boxes in the past. The input shaft and pinion shaft are on the same measurements as the T1 IRS tranny/Hewland. We use Hewland gear sets.
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| Brad Roberts |
Jun 26 2006, 05:29 PM
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#25
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
The 914 tranny case has the bosses on it in the bottom of the bellhousing for the BUG mounts to the frame horns. Drill and mount.
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| Dad Roberts |
Jun 26 2006, 06:57 PM
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#26
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Member Group: Members Posts: 224 Joined: 1-January 03 From: Ontario,Ca. Member No.: 70 |
Something else to consider when using the Type I CVs, there are units available that have been heat treated and deburred for further strength and life. These are the ones I have been running in my V8 Type III for years(including many dragstrip passes). When I repurchased my old car I replaced all the joints, just to be safe. I knew the POs had broken some of the CVs from misuse( one was broken by the upholsterer getting the car in and out of the building (IMG:style_emoticons/default/blink.gif) ). Just something else to consider when adapting Type I CVs. The "Blind Chicken " site has lotsa useful info.Dad (IMG:style_emoticons/default/driving.gif)
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| Otmar |
Jun 27 2006, 02:04 AM
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#27
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2000 Amps in a 914 Group: Members Posts: 174 Joined: 3-March 03 From: Corvallis, OR, USA Member No.: 387 |
Hey Mueller,
I ended up doing that same thing one panicked Saturday morning before a race in Oregon (that was back when I lived in Kalifornia) after calling a dozzen parts houses and wreckers. Many thanks to the parts guy who suggested that the splines were the same. But I did it in the back of the Stretch, in the parts house parking lot (just in case I F** up and needed another) with a Makita drill and a rag to keep the shavings out of the joint. Still worked great until I fragged the transaxle. Can you say 30 minutes until the track opens? Sure, I knew you could. (IMG:style_emoticons/default/biggrin.gif) Have fun! |
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| PRS914-6 |
Jun 27 2006, 11:34 PM
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#28
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Excellence Magazine Project 914 3.6 Group: Retired Members Posts: 1,278 Joined: 20-May 06 From: Central California Member No.: 6,031 Region Association: None  |
QUOTE(Brad Roberts @ Jun 26 2006, 03:43 PM) The 914 CV has a bevel washer that keeps spring tension against the CV when you push it onto the axle. This helps keeps the clip in place on the other side. Funny part of all this: Sway A Way makes axles with no clips and no springs. The CV's float on the axles. What are they going to do? Come out of the CV ? No. B Here is a picture of a Sway-A-Way that Brad is talking about and this is what I will be runing. The idea is to let the CV "float" unloaded and find it's own "happy spot" which reduces heat and friction. Another added benefit is that if the suspension takes a firm hit, the axle can move and won't break the ball retainer from a C-clip impact and the final benefit is that for high horsepower use, there is no radial groove around the axle on the load side that would initiate a break. (IMG:http://www.sayegh.org/Paul/porschepics/swayaway.jpg) |
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