Clutch tube....... oh fuch |
|
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. |
|
Clutch tube....... oh fuch |
Gigamight |
Nov 11 2009, 09:42 PM
Post
#1
|
Member Group: Members Posts: 220 Joined: 8-June 09 From: Near Akron, Ohio Member No.: 10,454 Region Association: Middle East |
So I was working on the project car today. I must explain before anyone thinks I'm an idiot, there was no engine in the car, and no cables, wiring etc.
So I was working on some real crappy work the PO did on the rear of the firewall, and something seemed to be missing..... finally found it by using a cutoff wheel to remove the top portion of the tunnel. My clutch tube has been jimmyjacked. It was cut about 14 inches before the firewall. there are no welds holding it in. So I need to do some clutch tube work. Any suggestions? Please start at the beginning, after all, remember I am the guy who was working on the car for quite a while before he realized there was no clutch tube exiting the firewall. So, taaaaaalk sloooooooowly. |
underthetire |
Nov 11 2009, 10:06 PM
Post
#2
|
914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
|
r_towle |
Nov 11 2009, 10:10 PM
Post
#3
|
Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Get a MIG welder and practice how to weld.
I guess I would have to see it, but from what you said, you are missing about 14 inches of clutch tube.... I would see if you can either find a whole clutch tube from a parts car, or plan to make your own. You can open up the tunnel from below (ask Dave Dyer for a picture of the tunnel) and replace the whole tube from below. Rich |
Dr Evil |
Nov 11 2009, 10:21 PM
Post
#4
|
Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Can you find a tube that is slightly larger in diameter than the original, 14in long or so, and could just slide over the original while leaving enough to weld to the wall?
|
Gigamight |
Nov 12 2009, 09:28 AM
Post
#5
|
Member Group: Members Posts: 220 Joined: 8-June 09 From: Near Akron, Ohio Member No.: 10,454 Region Association: Middle East |
From AA http://www.autoatlanta.com/tech/clutch_tube_repair.html Or http://www.914world.com/bbs2/index.php?showtopic=28313 Thank you for those links, I searched and searched.... Those will be very helpful. |
Gigamight |
Nov 12 2009, 09:31 AM
Post
#6
|
Member Group: Members Posts: 220 Joined: 8-June 09 From: Near Akron, Ohio Member No.: 10,454 Region Association: Middle East |
Get a MIG welder and practice how to weld. I guess I would have to see it, but from what you said, you are missing about 14 inches of clutch tube.... I would see if you can either find a whole clutch tube from a parts car, or plan to make your own. You can open up the tunnel from below (ask Dave Dyer for a picture of the tunnel) and replace the whole tube from below. Rich I know what you're saying, but without completely opening up the tunnel, I can't show you very well with pics. Let me ask this; does the clutch tube originally run the entire length of the tunnel? Or does it stop before it reaches the front end? Because the tube is jammed all the way to the front end of the tunnel right now, and I can only wiggle it, can't get it to slide. |
Bartlett 914 |
Nov 12 2009, 09:39 AM
Post
#7
|
Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
Does this picture help?
Attached image(s) |
Bartlett 914 |
Nov 12 2009, 09:44 AM
Post
#8
|
Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
The tube is welded at 3 points. The rear firewall, The bridge in the middle and at the front. The tube is 12 mm OD with 9mm ID. McMaster Carr has it.
|
Gigamight |
Nov 12 2009, 09:51 AM
Post
#9
|
Member Group: Members Posts: 220 Joined: 8-June 09 From: Near Akron, Ohio Member No.: 10,454 Region Association: Middle East |
Does this picture help? Kinda.... Thanks for the pic by the way. I still can't quite tell, where is the front end of the tube in relation to the front end of the tunnel? Does it stop at the side opening, or behind that spot? I'm sorry for being slow on this guys, really, but it's like figuring out a puzzle without the picture on the box. Except in this case I actually do have pictures. |
Bartlett 914 |
Nov 12 2009, 10:37 AM
Post
#10
|
Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
That picture was taken on a car on a rotisserie. This explaines the wierd view. Front of the car / tube is the top right of the picture. There are 4 tubes. 2 for the heater cables. One for the clutch (larger tube) and the accelerator cable. The accelerator cable tube and the clutch tube are welded at the front. I believe the clutch tube in the lower one (not sure). The front weld is the first to fail. Now it's your turn. Show us a picture of your problem.
|
Gigamight |
Nov 12 2009, 10:50 AM
Post
#11
|
Member Group: Members Posts: 220 Joined: 8-June 09 From: Near Akron, Ohio Member No.: 10,454 Region Association: Middle East |
All right, I am going to bite the bullet and start cutting the tunnel stem to stern. I'll get some pics and hopefully make some sense of what happened.
I do know this; the PO tried to fix it. There is a bracket of sorts that is not original that has been bolted to the floor of the tunnel. Obviously not a good fix. |
Bartlett 914 |
Nov 12 2009, 10:56 AM
Post
#12
|
Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
All right, I am going to bite the bullet and start cutting the tunnel stem to stern. I'll get some pics and hopefully make some sense of what happened. I do know this; the PO tried to fix it. There is a bracket of sorts that is not original that has been bolted to the floor of the tunnel. Obviously not a good fix. Stem to stern? Maybe a little too much. The view I sent is the bottom view of the car. The tubes are not welded to the floor pan. The middle bridge is welted to the top of the tunnel as are the tubes for the clutch and accelerator (or should be). You cannot easily just remove the tunnel. You are better off cutting off sections. Show a pic. |
rick 918-S |
Nov 12 2009, 11:02 AM
Post
#13
|
Hey nice rack! -Celette Group: Members Posts: 20,460 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
I went to an industrail supply house for truck and hydrolic parts. Semi trucks use a steel line for there air brakes that is a large diameter. Otherwise Mark had the right idea with McCarr Master.
|
burton73 |
Nov 12 2009, 11:16 AM
Post
#14
|
burton73 Group: Members Posts: 3,524 Joined: 2-January 07 From: Los Angeles Member No.: 7,414 Region Association: Southern California |
You need to put copper in the front of the tube to absorb the heat so the weld does not go into the tube making a bump that will give you a problem with the cable later. . The same with the back. Be careful in the center, as you cannot get the copper up there. Or I could not.
Bob |
r_towle |
Nov 12 2009, 06:48 PM
Post
#15
|
Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
The tube stops up in front of the shifter about 10-12 inches.
If yours is jammed up front it could be it slid forward and you need to pull it back. Rich |
ThinAir |
Nov 19 2009, 11:32 PM
Post
#16
|
Best friends Group: Members Posts: 2,542 Joined: 4-February 03 From: Flagstaff, AZ Member No.: 231 Region Association: Southwest Region |
All right, I am going to bite the bullet and start cutting the tunnel stem to stern. Don't cut so much! Take another look at 2nd link that underthetire posted. I included pictures with a tape measure to show the position and size of the flaps to cut. They are measured from the shifter hole for the front and from the firewall for the back. These flaps will open up access at just the right points. |
Greenguy |
Nov 24 2009, 11:18 PM
Post
#17
|
Member Group: Members Posts: 51 Joined: 29-December 06 From: Clovis, CA Member No.: 7,402 |
|
Bartlett 914 |
Nov 25 2009, 08:52 AM
Post
#18
|
Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
|
Lo-Fi Version | Time is now: 17th May 2024 - 09:58 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |