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 )

2 Pages V  1 2 >  
Reply to this topicStart new topic
> Rear wheel bearing replacement, Parts needed?
JawjaPorsche
post Nov 14 2012, 01:12 PM
Post #1


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States



My right rear bearing is making noises. I called my mechanic and he said to get parts and he would install it.

I am looking at the exploded view of rear axle. (See below)

When I order parts, do I just need the Bearing #28?

Is there a race for the control arm because I don't see one?

Does he need to remove CV axle and tap out the bearing from the inside?

Thank you in advance for your help.


Attached thumbnail(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TravisNeff
post Nov 14 2012, 01:13 PM
Post #2


914 Guru
*****

Group: Members
Posts: 5,082
Joined: 20-March 03
From: Mesa, AZ
Member No.: 447
Region Association: Southwest Region



You just need the bearing, its a sealed unit so the bearing and races are all one part
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeffs9146
post Nov 14 2012, 01:14 PM
Post #3


Ski Bum
****

Group: Members
Posts: 4,062
Joined: 10-January 03
From: Discovery Bay, Ca
Member No.: 128



Just the bearing! (IMG:style_emoticons/default/beerchug.gif)

You might as well replace the bushings also while your in there!!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Tom_T
post Nov 14 2012, 02:24 PM
Post #4


TMI....
*****

Group: Members
Posts: 8,320
Joined: 19-March 09
From: Orange, CA
Member No.: 10,181
Region Association: Southern California



QUOTE(Jeffs9146 @ Nov 14 2012, 12:14 PM) *

Just the bearing! (IMG:style_emoticons/default/beerchug.gif)

You might as well replace the bushings also while your in there!!

(IMG:style_emoticons/default/agree.gif)

(IMG:style_emoticons/default/laugh.gif) .... and that's where it starts! "while I'm in there...."
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Nov 14 2012, 03:01 PM
Post #5


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None



CV has to be removed, along with caliper and rotor.

Hub will have to be removed first or after bearing and hub are pounded out.

You need a tool to reinstall the bearing and hub. Without the proper support the bearing will be destroyed upon hub reinstall.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
matthepcat
post Nov 14 2012, 03:24 PM
Post #6


Meat Popsicle
***

Group: Members
Posts: 1,462
Joined: 13-December 09
From: Saratoga CA
Member No.: 11,125
Region Association: Northern California



You will also need a freezer and time to let it freeze for two days, or dry ice. You might also want a torch.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JawjaPorsche
post Nov 14 2012, 04:25 PM
Post #7


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States



I read about the freezer trick earlier and was planning to do. Getting bearing tomorrow and will freeze until Monday! (IMG:style_emoticons/default/beerchug.gif)


QUOTE(matthepcat @ Nov 14 2012, 04:24 PM) *

You will also need a freezer and time to let it freeze for two days, or dry ice. You might also want a torch.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeffs9146
post Nov 14 2012, 04:36 PM
Post #8


Ski Bum
****

Group: Members
Posts: 4,062
Joined: 10-January 03
From: Discovery Bay, Ca
Member No.: 128



If your mechanic is doing the work then he will need to freeze it because it needs to come out of the freezer and directly into the trailing arm before it warms and expands!

I leave a 60w light on the trailing arm for a few hours before and coat it with a light coat of grease. Then I put the frozen bearing in and most of the time it slides in like butter!! But if you wait to long it will stick and you have to finish by pressing it the rest of the way in!

PS: It is way easier to do it on the bench than on the car!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Van914
post Nov 14 2012, 04:38 PM
Post #9


Van914
***

Group: Members
Posts: 702
Joined: 5-January 03
From: Cincinnati, Ohio
Member No.: 90
Region Association: Upper MidWest



Made my own tool using pipe and caps from the Home Depot. Get pipe to contact the outside of the bearng.
Also used a BFH (IMG:style_emoticons/default/smash.gif)
Then I used an extra stub axle to finish.
Just one way

Van914
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JawjaPorsche
post Nov 14 2012, 04:44 PM
Post #10


Advanced Member
****

Group: Members
Posts: 3,463
Joined: 23-July 11
From: Clayton, Georgia
Member No.: 13,351
Region Association: South East States



I was going to pack it in ice before taking to the mechanic on Monday. He has a freezer and we will put in there while we dissemble the hub, CV axle, old bearing, etc! We will try to get heat on the trailing arm. It is going to low 30's Monday morning.

Thanks for the tip! (IMG:style_emoticons/default/beerchug.gif)


QUOTE(Jeffs9146 @ Nov 14 2012, 05:36 PM) *

If your mechanic is doing the work then he will need to freeze it because it needs to come out of the freezer and directly into the trailing arm before it warms and expands!

I leave a 60w light on the trailing arm for a few hours before and coat it with a light coat of grease. Then I put the frozen bearing in and most of the time it slides in like butter!! But if you wait to long it will stick and you have to finish by pressing it the rest of the way in!

PS: It is way easier to do it on the bench than on the car!

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
914itis
post Nov 14 2012, 04:55 PM
Post #11


Advanced Member
****

Group: Members
Posts: 2,892
Joined: 9-October 10
From: New York City
Member No.: 12,256
Region Association: North East States



QUOTE(Van914 @ Nov 14 2012, 05:38 PM) *

Made my own tool using pipe and caps from the Home Depot. Get pipe to contact the outside of the bearng.
Also used a BFH (IMG:style_emoticons/default/smash.gif)
Then I used an extra stub axle to finish.
Just one way

Van914

(IMG:style_emoticons/default/thisthreadisworthlesswithoutpics.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
bandjoey
post Nov 14 2012, 05:01 PM
Post #12


bandjoey
****

Group: Members
Posts: 4,930
Joined: 26-September 07
From: Bedford Tx
Member No.: 8,156
Region Association: Southwest Region



PBM videos on U tube of tear down and install
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SLITS
post Nov 14 2012, 06:25 PM
Post #13


"This Utah shit is HARSH!"
**********

Group: Benefactors
Posts: 13,602
Joined: 22-February 04
From: SoCal Mountains ...
Member No.: 1,696
Region Association: None



QUOTE(bandjoey @ Nov 14 2012, 03:01 PM) *

PBM videos on U tube of tear down and install


PBM?

How 'bout PMB

I do them on the car.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jeffs9146
post Nov 14 2012, 06:28 PM
Post #14


Ski Bum
****

Group: Members
Posts: 4,062
Joined: 10-January 03
From: Discovery Bay, Ca
Member No.: 128



QUOTE(SLITS @ Nov 14 2012, 04:25 PM) *

QUOTE(bandjoey @ Nov 14 2012, 03:01 PM) *

PBM videos on U tube of tear down and install


PBM?

How 'bout PMB

I do them on the car.


I have also done them on the car but I find it easier to just pull the arm, leave the axcels on the car and do them on the bench!
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
76-914
post Nov 14 2012, 08:50 PM
Post #15


Repeat Offender & Resident Subaru Antagonist
**********

Group: Members
Posts: 13,621
Joined: 23-January 09
From: Temecula, CA
Member No.: 9,964
Region Association: Southern California



I've done them in the car but next time I'm pulling the arm so I have an excuse to buy a press. (IMG:style_emoticons/default/biggrin.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
somd914
post Nov 14 2012, 09:57 PM
Post #16


Member
***

Group: Members
Posts: 1,171
Joined: 21-February 11
From: Southern Maryland
Member No.: 12,741
Region Association: MidAtlantic Region



I had no luck getting a bearing out recently - tried various versions of the homemade bearing pullers, tried a BFH, tried even a bigger BFH, still no joy, cried uncle and took the trailing arm to the shop and let them press it out.

If you are installing the hub vice your mechanic, don't forget to install the bearing cap (retainer) before installing the hub - failure to do so will result in stream of profanity and likely a ruined bearing. (IMG:style_emoticons/default/headbang.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
cwpeden
post Nov 15 2012, 12:23 AM
Post #17


Great White North, huh?
***

Group: Members
Posts: 916
Joined: 20-August 06
From: Victoria BC
Member No.: 6,693
Region Association: Canada



CV gaskets?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Amphicar770
post Feb 9 2016, 08:15 PM
Post #18


Senior Member
***

Group: Members
Posts: 1,208
Joined: 20-April 10
From: PA, USA
Member No.: 11,639
Region Association: MidAtlantic Region



I know this is an old thread but I saw something even older on another forum that I thought might be useful. I cant take credit, the author was someone named SammyG

bearings and any other parts that are designed to have an interference fit need to be installed in one of two ways, either with a press pushing on the correct place (either inside or outside race depending on where the interference is)
or you need to temporarily eliminate the interference fit with temperature diferentiation. heat the outer part and/or cool the inside part and you suddenly have clearance until the temperatures normalize.
What you should have done was to put the hub in the freezer and put the bearings in the oven and heat them up to around 230 degrees F. Then carefully slide the bearings onto the hub.
Then put the entire hub with bearings in the freezer (inside a plastic bag) until it is cold then carefully insert it into the control arm. No hammers allowed.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rjames
post Feb 10 2016, 12:09 AM
Post #19


I'm made of metal
****

Group: Members
Posts: 4,129
Joined: 24-July 05
From: Shoreline, WA
Member No.: 4,467
Region Association: Pacific Northwest



The correct schnorr washers for the cv bolts for when you put them back in.

User is offlineProfile CardPM
Go to the top of the page
+Quote Post
veekry9
post Feb 10 2016, 12:46 AM
Post #20


OldMember
****

Group: Retired Members
Posts: 3,068
Joined: 17-June 13
From: TO
Member No.: 16,025
Region Association: Canada



QUOTE(Amphicar770 @ Feb 9 2016, 09:15 PM) *

.......No hammers allowed.

^
Agreed,
If a proper press or extractor is not available,a hammer is the way to damage the bearing.
Cooking the bearings in clean oil to above 212 F,more like 300 F,will allow the bearing to slip onto a chilled shaft.
Both must be checked for actual dimensions and the resulting interference at operational temperature.SOP.
Roller bearing crankshafts and spindles have certain required methods.
Induction heating of bearings or housings is another way,production oriented.
https://www.google.ca/webhp?sourceid=chrome...=bearings%20101
https://www.google.ca/webhp?sourceid=chrome...%20installation
https://www.google.ca/search?q=bearing+pull...anSDP0Q_AUIBigB

Attached Image

In the machine trade,smoking a 30K$ machine bearing is not an option,therefore expertise and experience is applied.

/

User is offlineProfile CardPM
Go to the top of the page
+Quote Post

2 Pages V  1 2 >
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: 30th October 2024 - 09:43 PM