|
|
|
Your donations help keep this valuable resource free and growing. Thank you.
|
Changing pinion seal? AMC20 |
Post Reply 
|
Page 12> |
| Author | |
OzJavelin2 
AMC Nut 
Joined: Mar/29/2011 Location: Australia Status: Offline Points: 340 |
 Post Options
 Thanks(0)
 Quote Reply
 Topic: Changing pinion seal? AMC20Posted: Mar/12/2015 at 3:08pm |
|
I've developed a noticable leak at the pinion seal in my AMC20 in my '74 Javelin (non LSD). I'm wondering what "special tools" I might need to change it .. and if I'd need to replace the crush washer when I remove the pinion flange to replace the seal?
|
|
 |
|
|
401MATCOUPE
AMC Addicted
Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/12/2015 at 3:27pm |
|
Remove the yoke using impact gun, pop out the seal, inspect the seal mating surface on the yoke..make sure smooth, place some lube on the lip of the seal, install new seal, re-install the yoke....by the book you should install a new self locking nut and torque the nut per the TSM. In a pinch I have re-used nut, by applying Loctite on clean threads and running back on with 1/2" impact gun. The crush sleeve should not be effected by the impact gun....it takes more torque then then a typical 1/2" gun can put out to crush the sleeve. No real special tools...
|
|
|
Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
|
|
|
|
OzJavelin2
AMC Nut
Joined: Mar/29/2011 Location: Australia Status: Offline Points: 340 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/12/2015 at 8:45pm |
|
Sweet .. thanks
|
|
|
|
|
WesternRed
AMC Addicted
Joined: Aug/03/2010 Location: Australia Status: Offline Points: 5799 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/13/2015 at 1:26am |
|
You can actually mark the pinion nut and shaft so that you can make sure the nut goes back approximately where it started when you put it back together.
|
|
|
|
|
vinny
Supporter of TheAMCForum 
Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/13/2015 at 6:56am |
|
I did one quite a few years ago and cranked a new nut down with a 1/2" flex bar until I felt it get tight, then staked the nut so it wouldn't come loose again. Saw the guy in a store that had sold the Jeep to me and after telling him what I'd done he just yelled 'pinion seal' and stormed off. I think someone had told him he needed a new differential.
|
|
|
|
|
OzJavelin2
AMC Nut
Joined: Mar/29/2011 Location: Australia Status: Offline Points: 340 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/15/2015 at 4:59am |
|
Are all AMC 20 pinion seals and pinion nuts the same?
I can see a lot for CJ/SJ jeeps but nothing for cars .. |
|
|
|
|
401MATCOUPE
AMC Addicted
Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
Post Options
Thanks(0)
Quote Reply
Posted: Mar/15/2015 at 5:11am |
|
I believe so, since the gears are a direct interchange too.
|
|
|
Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
|
|
|
|
OzJavelin2
AMC Nut
Joined: Mar/29/2011 Location: Australia Status: Offline Points: 340 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/05/2015 at 3:39am |
|
Well .. Got my seal kit .. Now can't get the nut off the pinion.
I've got a 1/2" air wrench .. No good. 3/4" do the job if I can rent one? |
|
|
|
|
maximus7001
Supporter of TheAMCForum
Joined: Jun/27/2011 Location: Winnipeg,Canada Status: Offline Points: 1086 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/05/2015 at 3:51am |
|
Never mind the air wrench. You need leverage. Last time I did one of those I used a floor jack to lever the breaker bar with a cheater bar on the breaker.
|
|
|
1968 Javelin SST
1997 GMC Safari AWD 2001 Daewoo Nubira SX (Winnipeg only model) 1997 Honda Accord EX (Canadian Model) Winnipeg, home of the Jets. |
|
|
|
|
OzJavelin2
AMC Nut
Joined: Mar/29/2011 Location: Australia Status: Offline Points: 340 |
Post Options
Thanks(0)
Quote Reply
Posted: Apr/06/2015 at 4:47pm |
|
Hmm .. luckily I *WASNT* able to get the nut off. I forgot to check the preload (I marked the nut/pinion/yoke .. and the yoke in relation to the universal/driveshaft).
I've now realised that my inch/lb tension wrench is a "click" type and not suitable for this .. I can't get a reading as the yoke spins apparently as so an I put any load on it. The TSM says to remove the wheels/drums and check preload (supposedly around 18 inch-lb). I can't measure this without a dial-type tool as with both wheels off the ground I touch the yoke and the whole lot moves. I thought about trying something I read on a Jeep forum, where they tied a small bag to one of the yoke nuts and added weight until the yoke would turn. I suppose if you can duplicate this in reassembly, a *measurement* doesn't matter? [ remembering I still have the index marks on the nut/yoke as well ] .. confused ..
|
|
|
|
|
Post Reply
|
Page 12> |
Tweet
|
| Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |
Click for TheAMCForum Rules
Topic Options