May have found my transmission problem? |
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May have found my transmission problem? |
914bub |
Oct 11 2017, 12:01 AM
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#1
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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: 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. |
Dave_Darling |
Oct 12 2017, 05:47 PM
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#2
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914 Idiot Group: Members Posts: 14,981 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Don't trust Nyloc nuts on the clutch cable. The nylon wears and the clutch will lose adjustment. Double-nut the adjustment; it really is the only way to go.
The nuts are M7, which is an unusual size. Especially on these cars. M8 nuts will fit, but will let go the first time you push the pedal down. They will shoot across the garage and you'll never find them after that. (Voice of experience, there.) --DD |
914bub |
Oct 13 2017, 01:36 AM
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#3
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Member Group: Members Posts: 433 Joined: 16-August 13 From: Modesto CA. Member No.: 16,260 Region Association: None |
Don't trust Nyloc nuts on the clutch cable. The nylon wears and the clutch will lose adjustment. Double-nut the adjustment; it really is the only way to go. The nuts are M7, which is an unusual size. Especially on these cars. M8 nuts will fit, but will let go the first time you push the pedal down. They will shoot across the garage and you'll never find them after that. (Voice of experience, there.) --DD Dave, thank you, double nut was the plan. 7 X 1.0 ? I think I can get one even though it's such an oddball size. Reminds me of working on PRV engines in Volvos and DeLoreans. I planned on getting the gas tank in tonight but an ill family member sidetracked the night. Tomorrow night I should finally get to the point of a test drive. I'll call in the morning and see if I can get the nut at lunch. Pacific Bolt has come through with some pretty weird stuff. Fingers crossed..... |
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