Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

> May have found my transmission problem?
914bub
post Oct 11 2017, 12:01 AM
Post #1


Member
**

Group: Members
Posts: 433
Joined: 16-August 13
From: Modesto CA.
Member No.: 16,260
Region Association: None



I have had a shifting problem since I got my 914 almost 4 years ago. When I got the car the clutch was toast so I replaced all the clutch related parts, including the flywheel. Once I got the car driving I realized it wouldn't go into first gear. I speculated that first gear had gone out and the previous owner had driven starting out in second, finishing off the clutch. The car had been parked since 1990 and the PO is deceased so it was just a guess.

The ball bushing at the base of the shifter was destroyed so I ordered a shifter bushing kit and replaced that bushing as well as,(if I remember correctly) the two ball bushings at the firewall.The car would grind and grind but wouldn't go into first gear. After reading a bunch of threads here I decided to pull the nose cone and replaced first gear and syncho with a marginally better set of parts out of a side-shifted core trans I have here.

Success! So I thought........ First gear worked well for about a week and a half, then back to the same old game. I found it hard to believe I installed parts that literally had a couple weeks of life left in them.

I pulled the pedal assembly out about a year ago and then got busy playing with motorcycles. I finally got it back together and in this week.( I rebuilt it not because I thought it would solve my first gear problem but it just needed it).After getting everything together I was looking at the linkage trying to see anything awry and I found this:

Attached Image

I apologize for the washed out picture but you should be able to see what I'm talking about. The bushing the shift rod goes through has NO play although it is old. The shift rod slides freely through it as well. I loosened the bracket and pryed it so the shift rod was more centered in the linkage coming out of the transmission but it seems like it could go a little higher up and be a little "happier". Sorry I didn't take an after picture, I can tomorrow.

My biggest question is should the end of the shift rod be as "hourglass" shaped as it is or is that all attributable to wear? I can drop the shift rod for a better picture, or if someone has a picture of a "good" one I can compare to? If it is worn our machinist at work can build it up if needed so I can shape it correctly.
I need to put the gas tank back in so I can drive it and see if it's better. Any advice would be greatly appreciated. I apologize for the long post.

The rest of the gears engage fine, I think the shifter adjustment is ok.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post

Posts in this topic
914bub   May have found my transmission problem?   Oct 11 2017, 12:01 AM
76-914   Maybe! Or the shift fork has so much resistanc...   Oct 11 2017, 08:13 AM
914bub   Maybe! Or the shift fork has so much resistan...   Oct 11 2017, 08:38 AM
rhodyguy   Have you ever checked above the inspection/access ...   Oct 11 2017, 08:22 AM
Racer Chris   Yes it should have the hourglass shape. The wear p...   Oct 11 2017, 08:53 AM
DM_2000   Yes it should have the hourglass shape. The wear ...   Oct 20 2017, 06:16 PM
Dr Evil   100% with Chris. Its worth unbolting that small s...   Oct 11 2017, 09:24 AM
914bub   Thanks for all the replies so far. It's defini...   Oct 11 2017, 01:41 PM
914bub   Tonight I pulled the inspection cover on the trans...   Oct 11 2017, 11:35 PM
Racer Chris   Position of the rod looks good in your last pictur...   Oct 12 2017, 06:33 AM
914bub   Position of the rod looks good in your last pictu...   Oct 12 2017, 08:13 AM
Dr Evil   Ya, that looks much better. Agree with jamb not, h...   Oct 12 2017, 08:14 AM
Dr Evil   http://www.914world.com/bbs2/index.php?showtopic=1...   Oct 12 2017, 01:35 PM
Dave_Darling   Don't trust Nyloc nuts on the clutch cable. T...   Oct 12 2017, 05:47 PM
914bub   Don't trust Nyloc nuts on the clutch cable. ...   Oct 13 2017, 01:36 AM
Tbrown4x4   914 rubber has the nuts   Oct 13 2017, 02:44 AM
914bub   I'm adding a final post,not because I think an...   Oct 20 2017, 12:15 AM
Old Yella   Did you check the pedal stop is allowing the corre...   Oct 20 2017, 03:48 AM
Racer Chris   After reading a bunch of threads here I decided ...   Oct 20 2017, 06:27 AM
914bub   After reading a bunch of threads here I decided...   Oct 20 2017, 08:18 AM
Racer Chris   [quote name='Racer Chris' post='2539734' date='Oc...   Oct 20 2017, 05:54 PM
Dr Evil   Just to be thorough, ground strap in place? If not...   Oct 20 2017, 01:02 PM
914bub   Just to be thorough, ground strap in place? If no...   Oct 20 2017, 11:37 PM
914bub   I ran out and took a picture of what I have for tr...   Oct 21 2017, 12:46 AM
Luke M   I ran out and took a picture of what I have for t...   Oct 21 2017, 07:58 AM


Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 



- Lo-Fi Version Time is now: 28th March 2024 - 05:56 PM