home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 10-01-2013, 11:55 AM   #1
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default Volvo 122 Transmission Seals

Anyone ever replace the rear main seal before? Any tips? I saw an article that said I would need a puller to get the flange off. Its definitely not budging
Keith602 is offline   Reply With Quote
Old 10-01-2013, 11:58 AM   #2
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

I've had my M41 all the way apart before. I did use a puller on the flange. It's squeezed on there with a big nut, and it doesn't come off easily. Not a huge fight, but certainly not just going to slide off when the nut is removed.
__________________
'63 PV Rat Rod
'93 245 16VT Classic #1141
JohnMc is online now   Reply With Quote
Old 10-01-2013, 12:05 PM   #3
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Quote:
Originally Posted by JohnMc View Post
I've had my M41 all the way apart before. I did use a puller on the flange. It's squeezed on there with a big nut, and it doesn't come off easily. Not a huge fight, but certainly not just going to slide off when the nut is removed.
Ill try and pick one up then
Keith602 is offline   Reply With Quote
Old 10-01-2013, 12:29 PM   #4
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

Autozone loans tools for free (sort of). You pay for the tool and your money is refunded when you return it. This should do the job.



I made my own from some old flanges, all thread and nuts.

hiperfauto is offline   Reply With Quote
Old 10-01-2013, 12:48 PM   #5
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

I don't use that 'free' Autozone tool rental nearly enough. I always forget they do that.

I have some old 3 armed puller that I use for about everything. Well, other than the PV's rear drums, i have some sort of locomotive tool (heh) I use on those.
JohnMc is online now   Reply With Quote
Old 10-01-2013, 01:00 PM   #6
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

I make my own drum pullers from an old front hub.

hiperfauto is offline   Reply With Quote
Old 10-01-2013, 01:00 PM   #7
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

So I ended up buying a $12 puller that got the flange off. Im not sure as how to proceed next. Im not actually sure where the rear main seal is. Any help is very appreciated.

If you cant tell, its the first time im gotten into this trans haha
Keith602 is offline   Reply With Quote
Old 10-01-2013, 01:09 PM   #8
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

"Rear main seal" usually refers to the rear crankshaft seal. Where is your leak, from the flange/speedo area of the trans or from the area where the bellhousing meets the block?

Since you've pulled the flange already, be aware there are 2 different size rear seals for the M40 trans.
hiperfauto is offline   Reply With Quote
Old 10-01-2013, 01:14 PM   #9
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

Should be a normal seal pressed into the aluminum tail housing. You'll need to hook the old one out (they.... sell tool for that) and carefully drive the new one in.

Once the old one is out (and if you don't have the nice seal hook just get it out however, with the flange out of the way you don't even need to worry about nicking the sealing surface the seal seals against). Clean the housing well to remove any grit/gunk. Then lightly oil the outside of the new seal and tap it in. It can be tricky to get it so go in straight and evenly. Just go slow, if it gets too crooked you can end up bending the seal, then you need to start over again with a new one.
JohnMc is online now   Reply With Quote
Old 10-01-2013, 01:37 PM   #10
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Quote:
Originally Posted by hiperfauto View Post
"Rear main seal" usually refers to the rear crankshaft seal. Where is your leak, from the flange/speedo area of the trans or from the area where the bellhousing meets the block?

Since you've pulled the flange already, be aware there are 2 different size rear seals for the M40 trans.
Heres what im looking at





Is this the main seal?? Do I have the wrong one? This one is slightly smaller


Keith602 is offline   Reply With Quote
Old 10-01-2013, 01:57 PM   #11
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

The part number for the seal I got is 19933 for up to 1967. The other one is 942350 but it says its for '67 and up. Mine is a '66. Mike from iroll motors changed the order I placed to the seal he sent because it should be the right one for my car. Im confused. Possible this is a different trans than originally went to my car? Am I not even looking at the right seal?
Keith602 is offline   Reply With Quote
Old 10-01-2013, 02:14 PM   #12
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

My work blocks photobucket for some EXCEEDINGLY RETARDED reason.

But after 50-ish years, it's very possible that things like the trans have been swapped.
JohnMc is online now   Reply With Quote
Old 10-01-2013, 02:15 PM   #13
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

Your trans has the big rear bearing, which is 69-. You need the larger seal. You didn't need to remove the housing to change the seal unless you're changing the bearing or the gasket. In fact, you probably pulled the 3-4 shift dogs out of their locating notches on the 4th gear synchro when you pulled the bearing housing off. Check it carefully and don't force anything when going back together.
hiperfauto is offline   Reply With Quote
Old 10-01-2013, 02:17 PM   #14
vvpete
Board Member
 
Join Date: Feb 2005
Location: Land of Enchantment
Default

AFIK the different transmission shaft sizes are for an M40 attached to a B18 vs an M40 on a B20, which has a bigger output shaft or tailshaft.
Measure the OD of the output flange hub where the seal contacts the flange. This is the size of seal you need, specified by the flange size.
The seal is called "Transmission Rear Extension Housing Seal"
vvpete is offline   Reply With Quote
Old 10-01-2013, 02:26 PM   #15
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Quote:
Originally Posted by hiperfauto View Post
Your trans has the big rear bearing, which is 69-. You need the larger seal. You didn't need to remove the housing to change the seal unless you're changing the bearing or the gasket. In fact, you probably pulled the 3-4 shift dogs out of their locating notches on the 4th gear synchro when you pulled the bearing housing off. Check it carefully and don't force anything when going back together.
More good news... lol
Keith602 is offline   Reply With Quote
Old 10-01-2013, 02:27 PM   #16
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Thanks for all of your help guys! Looks like I need a new seal. Now, where to get one that will have it here soon. Mike from iroll will be out of town for a while.
Keith602 is offline   Reply With Quote
Old 10-01-2013, 02:43 PM   #17
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

I can send one out today. Let me know if you need anything else, I keep a lot of parts for these in stock.
hiperfauto is offline   Reply With Quote
Old 10-01-2013, 02:46 PM   #18
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Quote:
Originally Posted by hiperfauto View Post
I can send one out today. Let me know if you need anything else, I keep a lot of parts for these in stock.
What phone number can I contact you at?
Keith602 is offline   Reply With Quote
Old 10-01-2013, 02:48 PM   #19
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

http://hiperformanceautoservice.com/contact_us.php
hiperfauto is offline   Reply With Quote
Old 10-01-2013, 04:34 PM   #20
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Thanks! You guys were very helpful.
Keith602 is offline   Reply With Quote
Old 10-01-2013, 07:13 PM   #21
LloydDobler
Board Member
 
LloydDobler's Avatar
 
Join Date: Mar 2006
Location: PDX
Default

For future reference, oil seals like that are fairly generic and can be ordered by OD/ID/thickness, often from any auto parts store. Just need a caliper to measure your bore and shaft. Or clean your old one and get the part number off it.
LloydDobler is offline   Reply With Quote
Old 10-01-2013, 08:49 PM   #22
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Can anyone tell me how to get the rear main seal out? I heard special tool. Ive tried using a curved pic, but its not budging.
Keith602 is offline   Reply With Quote
Old 10-01-2013, 09:04 PM   #23
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

Method 1: Get a seal puller like this



Method 2: Slip a long thin screwdriver between the crank and seal, then pry.

Method 3: Punch a small hole in the seal and insert in a sheet metal screw, then pull or pry on the screw.

-----------------------
If you meant the trans output shaft seal use one of these



or knock it out with a screwdriver from the back side since you have the housing off.

Last edited by hiperfauto; 10-01-2013 at 09:48 PM..
hiperfauto is offline   Reply With Quote
Old 10-01-2013, 10:09 PM   #24
Keith602
Board Member
 
Join Date: Jan 2013
Location: Phoenix, Az
Default

Quote:
Originally Posted by hiperfauto View Post
Method 1: Get a seal puller like this

[IMG]
If you meant the trans output shaft seal use one of these



or knock it out with a screwdriver from the back side since you have the housing off.

I got that tool from autozone and it popped right off. I have the housing back on and it seemed to be ok. the thinking is that if it was hard to get back on that something could be wrong yeah? So I may be out of the woods?
Keith602 is offline   Reply With Quote
Old 10-01-2013, 10:11 PM   #25
hiperfauto
The Librarian
 
hiperfauto's Avatar
 
Join Date: Nov 2011
Location: So Cal
Default

Let's hope so. Did you check how it shifts into 4th after you put it back together?
hiperfauto is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 09:01 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.