Tail to Side Shift Conversion Rookie |
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Tail to Side Shift Conversion Rookie |
Jameel |
Mar 12 2016, 08:25 AM
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#21
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Member Group: Members Posts: 98 Joined: 6-October 15 From: Iowa Member No.: 19,239 Region Association: None |
A few days ago I decided to take a closer look at my shift linkage, since my car has some serious issues. Took that rear cover off and found this: https://youtu.be/gtFysPUBIO0
I'm no engineer, but that looks nasty to me. I decided to fix it right. So yesterday I made a trip to 914 Limited and was treated quite well by Brad and Mike. Brad and I had exchanged a couple emails and calls and since I'm less than 3 hours from Peoria, I decided to kill two birds and simply drive in. Brad was kind enough to let me drive his daily 914 to see what a side shifter felt like. Took me about 1/3 mile to decide I would do the conversion. Brad and Mike walked me through a few of the finer points of the process, but this being my first time opening up a transaxle, I figured I'd try and document as much as possible. I've done a bunch of searches here (and at Pelican) but have not found much in terms of step-by-step. Brad's instructions were provided, and he invited me to call anytime for support, but I'll be taking pics anyway, so figured I'd start a thread. Can anyone point me to a thread where someone has documented the process? The best I've found so far is mikedsilva's, here. I could not find others. Sort of off topic too, but is there any way to get rid of the huge smileys window when composing a post? My composition pane is just tiny, like 1/4 the size of the smileys pane. |
Dr Evil |
Mar 26 2016, 09:31 AM
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#22
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Send me your transmission! Group: Members Posts: 23,032 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Hard to tell in the video, there looks to be some material missing on the teeth face. Normal wear. You will have a hard time finding a perfect R/P that is 40yrs used. If you are not blasting lots of power through it then it is fine. Gasket tolerance is +/-0.03mm. Consider that is with new bearings in perfect shape. Used bearings are going to have some serious play so close enough is good for the gaskets. Consider that the kits only come with 0.24-25mm gaskets, you get as close as you can with that and roll with it. Sounds crazy, I know. Next question would be, "What if you change to new, tight bearings?" Well, there are other size gaskets that you can order. Also, there are shims under the pinion that you adjust. Now, you can rebuild the box using the standard kit with the 0.25 gaskets, get close enough, and things are all good. How? My only educated guess is that the R/P are worn and the tolerance on them is much looser than new which allows for there to be wider tolerance range. What happens if you are not spot on? Noise. What happens in an old transmission usually? Noise. So, you can be pretty bold in assembly if you just get real close. Thats kind of a gist of the stuff mentioned in the DVD.
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Jameel |
Mar 26 2016, 03:03 PM
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#23
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Member Group: Members Posts: 98 Joined: 6-October 15 From: Iowa Member No.: 19,239 Region Association: None |
Thanks for the info. As for recognizing noise, I have very little experience with the 901 tranny (I've driven three 914's, and a 71' 911S) and my own car has dual 40IDF Webers and a loud exhaust. I guess I could try coasting downhill in gear off the throttle to hear the possibly noise. I can see myself making improvements to this car little by little, and now that I've removed the transaxle once, I'm not afraid to do it again. I'm going to have the tranny looked at by the gents down at Stalltek next week, get some experienced eyes on this thing. Can't wait to get the DVD and learn more.
I did get the flywheel off this morning after making a quick and dirty locking plate. I like not having to deal with a 300lb. torqued gland nut! The five bolts came off relatively easily with my breaker bar. Cleaned up the flywheel and put a straight edge across the face. Wow. No wonder my clutch didn't feel very grippy. I hope I've got enough trough at the perimeter for a resurface. I was hoping to not have to buy a new flywheel. |
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