Hole in tailhousing....., Did the speedo gear loosen? |
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Hole in tailhousing....., Did the speedo gear loosen? |
okieflyr |
May 23 2006, 08:05 PM
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#1
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9fauxteen Group: Members Posts: 816 Joined: 9-January 05 From: Phila PA Member No.: 3,426 Region Association: North East States |
So after moving the car around a bit while putting things back together, I noticed some oil on the ground. While this is not that unusual for a 914, this was tranny oil.
Thats when I discovered the hole this evening. I'd had the tranny worked over by a VERY experienced gentleman(whom I'll be calling in the morning). It only has a couple of miles on it at the most, but it was enough to do the damage. My suspician is that the speedo gear has gotten loose and started backing out and jammed? I can see that the teeth are gone, and that the shaft has some wobble, as in loose. I'm hoping to be able to pull the housing, clean out the bits, and put on another donor housing? Can anyone confirm this? |
Aaron Cox |
May 23 2006, 08:06 PM
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#2
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
who werked on it?
cuz that aint right |
okieflyr |
May 23 2006, 08:18 PM
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#3
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9fauxteen Group: Members Posts: 816 Joined: 9-January 05 From: Phila PA Member No.: 3,426 Region Association: North East States |
who werked on it? cuz that aint right While there is a definite problem here, I'm not at a point of disclosing a name yet, as I've not talked to the gentleman yet to work out the repair scenario. My concern is to get this fixed this weekend using donor parts, so I can go racing the first of June... Kevin |
McMark |
May 23 2006, 08:37 PM
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#4
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
I've seen muffler hangers wear holes in that area, but nothing like that. I find it hard to believe that the speedo drive could cause that damage. Once the brass gear stripped the speedo gear won't do anything but sit there immobile.
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Dr Evil |
May 23 2006, 10:25 PM
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#5
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Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Wobble in that speedo shaft (the gold one) is normal. I don't think the speedo shaft caused this. strange indeed. Your muffler hanger looks a bit intrusive into that area, no?
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So.Cal.914 |
May 23 2006, 10:48 PM
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#6
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
It almost looks like that hanger should be spaced out a bit.
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okieflyr |
May 24 2006, 06:43 AM
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#7
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9fauxteen Group: Members Posts: 816 Joined: 9-January 05 From: Phila PA Member No.: 3,426 Region Association: North East States |
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jr91472 |
May 24 2006, 07:03 AM
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#8
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"I'm pacing myself sergeant..." Group: Members Posts: 1,205 Joined: 2-August 04 From: McKinney, TX Member No.: 2,437 |
Been there done that.....
Oh the horror..... Expansion bolt was NOT torqued properly. Do not drive it as you run the risk of damaging the ring and pinion. If your are luckly you will only need to replace the speedo worm drive, expansion bolt, and rear cover. good luck |
Dr Evil |
May 24 2006, 11:53 AM
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#9
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Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
I have a spare bolt and drive, PM me.
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jfort |
May 24 2006, 02:43 PM
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#10
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Senior Member Group: Members Posts: 1,137 Joined: 5-May 03 From: Findlay, OH Member No.: 652 Region Association: Upper MidWest |
same thing happened to me 6 weeks ago. tranny apart and put back together but mechanic did not tighten nut. speedo gear drilled a hole in the end of the case. replaced case end, speedo gear, pinion gear and first gear. running good now.
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okieflyr |
May 24 2006, 03:58 PM
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#11
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9fauxteen Group: Members Posts: 816 Joined: 9-January 05 From: Phila PA Member No.: 3,426 Region Association: North East States |
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Cap'n Krusty |
May 24 2006, 05:13 PM
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#12
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
You can't accurately set the shift forks with that bolt loose, makes me wonder what else he forgot. HOWEVER, it's a stretch bolt, so there's always the possibility it just broke. The Cap'n
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okieflyr |
May 27 2006, 08:55 PM
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#13
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9fauxteen Group: Members Posts: 816 Joined: 9-January 05 From: Phila PA Member No.: 3,426 Region Association: North East States |
Well we went back into the tranny this morning, and as suspected (and hoped for), it was only the the speedo shaft and gear that came loose. It preceeded to back out and bore it's way through. The tranny was disasembled and checked out, flushed, lubed and re-assembled. Drove it around the hood this evening, and so far so good. Looking foward to the shake down auto-x next weekend (IMG:style_emoticons/default/piratenanner.gif) Kevin
Attached image(s) |
Cap'n Krusty |
May 27 2006, 08:59 PM
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#14
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
"Came loose"? Did the roll pin break? I can't imagine that happening, but I suppose it could. The only other likely scenario is the bolt not being torqued properly. 12mkp isn't a torque likely to "come loose". The Cap'n
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