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Air Locker Problems

General Tech Talk

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Air Locker Problems

Post by Nev62 »

I have a couple of problems with one of my ARB lockers.

1. At times it won't lock. You can hear the air escaping through the diff breather valve (no brainer there). The strange thing is that this is not constant. Sometimes it works and sometimes is don't. Took the diff out, connected to air and no air leak. Hmmm

2. The locker seems to not fully disengage. With no air you can fill the axle left hand side "bumping" as you rotate it (sort of like clunk clunk clunk - like it is jumping over the edge of teeth).

3. "Clicking noise coming from the diff (not unlike buggered CV's) from time to time which is most noticeable when cornering, under load.

4. When accelerating from stop, can here 3 to 4 clicks (same sound as buggered CV's). This is most noticeable when the vehicle is loaded and/or pulling a trailer.

I have pull the diff out and cannot see any obvious damage. There seems to be around 1mm of back lash (pinon will move 1mm before the crown wheel.

Anyone???????????
FJ62 Crusier GM V8 Diesel Lockers 33 MTs/35 117 extremes
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Post by chunderlicious »

dont know the cause but WILL off the forum has the same problem, does nice 13 inch twins on bitumen with a 60 ute and hops around corners, yet sometimes it doesnt seem to engage.

mechanic said they probably need a service.
turbos are nice but i'd rather be blown
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Post by RUFF »

Sounds to me like it has a broken cross pin.
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Post by Nev62 »

RUFF wrote:Sounds to me like it has a broken cross pin.
Cross shaft or cross shaft retaining pin?

Tiny, if I bring it in, how much for you to check it out for me?? (first time I've played with lockers).
FJ62 Crusier GM V8 Diesel Lockers 33 MTs/35 117 extremes
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Post by dbongard »

How old is the diff?

daniel
AIR LOCKER
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Post by Nev62 »

dbongard wrote:How old is the diff?

daniel
AIR LOCKER
They are around 4 years old. I have taken the rear into ARB for them to ckeck out.
FJ62 Crusier GM V8 Diesel Lockers 33 MTs/35 117 extremes
Macarthur District 4WD Club http://www.macarthur4wdclub.com.au
Posts: 792
Joined: Mon Jan 05, 2004 4:43 pm
Location: Campbelltown, Sydney

Post by Nev62 »

Ended up taking the diff (locker in the carrier) to ARB. After a couple of days they said they could find nothing wrong, cleaned it up and put in new oring (after all the other had been in there for 4 1/2 years).

So I still have my problems and can only think wheel bearings, uni joints or springs that are so buggered they are wrapping all the time. Still does not explain the air leaking from the diff breather form time to time :?
Last edited by Nev62 on Tue Oct 10, 2006 5:16 pm, edited 1 time in total.
FJ62 Crusier GM V8 Diesel Lockers 33 MTs/35 117 extremes
Macarthur District 4WD Club http://www.macarthur4wdclub.com.au
Posts: 51
Joined: Wed Jan 08, 2003 2:16 pm
Location: Melbourne

Post by dbongard »

Next time jump into the vehicle in the morning, fire up the compressor and engage the diff before you have rolled anywhere.
Take note if the compressor runs on without shutting off.
If it did, then turn off the diff and drive for 5 K's or more and try the diff again.
Did this correct it?

daniel
AIR LOCKER
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Post by Nev62 »

Found most of my problems, twisted axle
FJ62 Crusier GM V8 Diesel Lockers 33 MTs/35 117 extremes
Macarthur District 4WD Club http://www.macarthur4wdclub.com.au
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