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 )

 
 Reply to this topicStart new topic
> Removing trailing arm bushings, what a pain
tradisrad
post Aug 21 2009, 09:03 AM
Post #1


Senior Member
***

Group: Members
Posts: 985
Joined: 11-September 06
From: San Mateo, CA
Member No.: 6,815
Region Association: Northern California
I purchased Elephant Racing poly bronze bushings for the rear. I spent a ton of time and several broken drill bits removing the stock rubber from one trailing arm.
This task was a big PIA.
Is there another way, for those who don't have a 20-ton press, to remove these bushings? Any advice is appreciated.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jaxdream
post Aug 21 2009, 09:10 AM
Post #2


Senior Member
***

Group: Members
Posts: 974
Joined: 8-July 08
From: North Central Tennessee
Member No.: 9,270
Region Association: South East States
Have you tryed heating with a propane tourch to melt / burn the rubber out of the arm ?? The propane tourch shouldn't get the metal too hot to ruin the heat treatment of the shaft and arm. (IMG:style_emoticons/default/blowtorch.gif)

Jaxdream
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tradisrad
post Aug 21 2009, 09:25 AM
Post #3


Senior Member
***

Group: Members
Posts: 985
Joined: 11-September 06
From: San Mateo, CA
Member No.: 6,815
Region Association: Northern California
yes, I applied heat and had them smoking. Worked great for the front, but not so great for the rears I am working on.
The elephant set comes with special shafts, so I am not worried about getting those hot. I did not want to use heat on the painted surface 'cause I don't want to repaint, but it's too late now!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
McMark
post Aug 21 2009, 11:19 AM
Post #4


914 Freak!
***************

Group: Retired Admin
Posts: 20,179
Joined: 13-March 03
From: Grand Rapids, MI
Member No.: 419
Region Association: None
Here's what I do. They come out smoothly. No broken tools, no cursing, 20 minutes for both sides.


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tradisrad
post Aug 21 2009, 11:53 AM
Post #5


Senior Member
***

Group: Members
Posts: 985
Joined: 11-September 06
From: San Mateo, CA
Member No.: 6,815
Region Association: Northern California
McMark, thanks I'll give that a try! I'm working on the Green 14 I bought from LarryR.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
J P Stein
post Aug 21 2009, 12:02 PM
Post #6


Irrelevant old fart
*****

Group: Members
Posts: 8,797
Joined: 30-December 02
From: Vancouver, WA
Member No.: 45
Region Association: None
Fire is your friend....unless you live in CA. (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Chris Pincetich
post Aug 21 2009, 12:02 PM
Post #7


B-)
****

Group: Members
Posts: 2,082
Joined: 3-October 05
From: Point Reyes Station, CA
Member No.: 4,907
Region Association: Northern California
Yes, they are a pain to get out! I found that my 2 favorite tools helped a lot
(IMG:style_emoticons/default/smash.gif)
(IMG:style_emoticons/default/welder.gif)
After heating, I pounded the thing (pulling looks nicer). Then I used a razor blade to cut out what was showing of the bushing. This helped get more access for the heat to melt away the bushing inside. It took like 2 hrs to do the first one, 1 hr to do the second one. Good luck (IMG:style_emoticons/default/beerchug.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
kconway
post Aug 21 2009, 12:14 PM
Post #8


Senior Member
***

Group: Members
Posts: 1,347
Joined: 6-December 04
From: Monrovia, CA
Member No.: 3,231
Region Association: Southern California
QUOTE(McMark @ Aug 21 2009, 09:19 AM) *

Here's what I do. They come out smoothly. No broken tools, no cursing, 20 minutes for both sides.



Mark,
So are you pushing the rod through the bushings and out the other side of the swingarm?

Kev
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
sean_v8_914
post Aug 21 2009, 12:15 PM
Post #9


Chingon 601
****

Group: Members
Posts: 4,011
Joined: 1-February 05
From: San Diego
Member No.: 3,541
a press works best
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jaxdream
post Aug 21 2009, 12:21 PM
Post #10


Senior Member
***

Group: Members
Posts: 974
Joined: 8-July 08
From: North Central Tennessee
Member No.: 9,270
Region Association: South East States
QUOTE(McMark @ Aug 21 2009, 09:19 AM) *

Here's what I do. They come out smoothly. No broken tools, no cursing, 20 minutes for both sides.

This is exactly what I did , pushed the shaft out one side , got the bushing out , put the puller / pusher on the other side pushed the shaft back through the bushing and then removed that side using heat from a propane tourch - both sides done (IMG:style_emoticons/default/piratenanner.gif)

Jaxdream
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tradisrad
post Aug 22 2009, 09:50 AM
Post #11


Senior Member
***

Group: Members
Posts: 985
Joined: 11-September 06
From: San Mateo, CA
Member No.: 6,815
Region Association: Northern California
McMark: (IMG:style_emoticons/default/pray.gif) You saved me hours on the second trailing arm. So why does Chuck at Elephant recomment drilling the bushings out?
To anyone doing this job. DO NOT DRILL, use McMarks method. Minutes compared hours...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SKL1
post Mar 24 2013, 06:37 PM
Post #12


Senior Member
***

Group: Members
Posts: 1,646
Joined: 19-February 11
From: north Scottsdale
Member No.: 12,732
Region Association: Upper MidWest
Now what?

Pushing out the hubs with a 12 ton press and bang! Hub came out taking one of the bearing races with it, on each side!! (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/headbang.gif) Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bandjoey
post Mar 24 2013, 06:42 PM
Post #13


bandjoey
****

Group: Members
Posts: 4,930
Joined: 26-September 07
From: Bedford Tx
Member No.: 8,156
Region Association: Southwest Region
WAtch this for the hubs and bearings:

http://www.pmbperformance.com/video.html

(IMG:style_emoticons/default/sawzall-smiley.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SKL1
post Mar 24 2013, 07:23 PM
Post #14


Senior Member
***

Group: Members
Posts: 1,646
Joined: 19-February 11
From: north Scottsdale
Member No.: 12,732
Region Association: Upper MidWest
Figured Eric would have the answer!

Bet I'll need the dremel as hard as the hubs came out!! Sounded like an explosion when they finally "fell" out!!! Damn they were under a lot of pressure!!!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SKL1
post Mar 24 2013, 07:35 PM
Post #15


Senior Member
***

Group: Members
Posts: 1,646
Joined: 19-February 11
From: north Scottsdale
Member No.: 12,732
Region Association: Upper MidWest
Installing rear bearing video won't work- hopefully just a temporary problem...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Eric_Shea
post Mar 24 2013, 07:53 PM
Post #16


PMB Performance
***************

Group: Admin
Posts: 19,289
Joined: 3-September 03
From: Salt Lake City, UT
Member No.: 1,110
Region Association: Rocky Mountains
Do you have a press?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SKL1
post Mar 25 2013, 05:41 AM
Post #17


Senior Member
***

Group: Members
Posts: 1,646
Joined: 19-February 11
From: north Scottsdale
Member No.: 12,732
Region Association: Upper MidWest
Yep a 12 ton HF that looks like the one in one of your videos... used it to pop out the hubs along with one of the bearing races (IMG:style_emoticons/default/smile.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
02loftsmoor
post Mar 25 2013, 09:36 AM
Post #18


Senior Member
***

Group: Members
Posts: 577
Joined: 26-June 11
From: Ft. Worth TX
Member No.: 13,243
Region Association: Southwest Region
I looks like you came from cold country, is there rust in bearing seats??
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Eric_Shea
post Mar 25 2013, 04:05 PM
Post #19


PMB Performance
***************

Group: Admin
Posts: 19,289
Joined: 3-September 03
From: Salt Lake City, UT
Member No.: 1,110
Region Association: Rocky Mountains
QUOTE
Yep a 12 ton HF that looks like the one in one of your videos... used it to pop out the hubs along with one of the bearing races


I simply press the shafts out. As follows:

1. Set the shelf at the 4th hole from the top. Heat the shaft with a MAPP torch (the threaded section sticking out from the bushing) until there are wisps of smoke from the rubber.

2. Press the shaft through the first bushing.

3. Using the largest flat head screw driver you can, pry the rubber bushing up and out from the inside. Go back and forth and you'll see it move upward and eventually out. Not hard at all.

4. Drop the shelf to the 5th hole down.

5. heat and press the shaft through the other bushing. Get the shaft very hot so it can press through the bushing without binding. Otherwise the bushing can bind and go into the arm.

6. The press will not have enough travel to get the shaft through the second bushing. Move the shelf back to the 4th hole and finish the job.

7. Repeat step 3.

Very easy. No mess. Not much stink. Yada, yada, yada...
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

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

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 26th December 2024 - 11:00 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
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 ...