Welded diff - Clunk!

[Pep]

Hey all

I got my rear diff centre welded about a week or so ago
All good, starting to get use to it until this morning when it now seems to
Clunk as i go around a sharp right hand turn.

Any ideas as i'm afraid it could be the axle slipping on the sline (is that possible?)

Thanx Pep

[alien]

mine did that - soon itll start doing it constantly - i think youll find the welds gave way... so get it checked by the guys who did it =)

[lay80n]

I agree with the broken weld theory. Pull the centre and inspect the welds, or take it to the place that did it and get them to look at it if your not sure what your doing

Layto....

[Pep]

I can take it out, that's not the reason i had someone weld it for me
I just dont have a welder that's all. But i watched him (my neighbour) weld it
and i'd be shocked if it's the weld, but having said that i've never had a welded diff before,
so i shall inspect

Pep

[Guy]

I can take it out, that's not the reason i had someone weld it for me
I just dont have a welder that's all. But i watched him (my neighbour) weld it
and i'd be shocked if it's the weld, but having said that i've never had a welded diff before,
so i shall inspect

Pep

There is a huge amount of force on those welds, and if the centre was not 100% cleaned of oil they welds may not be all that strong either. This a espicially critical when welding with a MIG as an Stick\ARC can "burn through" a little better (you will still have contaminated welds though)

[Pep]

I can take it out, that's not the reason i had someone weld it for me
I just dont have a welder that's all. But i watched him (my neighbour) weld it
and i'd be shocked if it's the weld, but having said that i've never had a welded diff before,
so i shall inspect

Pep

There is a huge amount of force on those welds, and if the centre was not 100% cleaned of oil they welds may not be all that strong either. This a espicially critical when welding with a MIG as an Stick\ARC can "burn through" a little better (you will still have contaminated welds though)

Thanks for the reply, we pulled the centre apart and washed it out in a bath of thinners
(could that the problem, should i have cleanned it in something else?)
we also arc/stick welded it as i was told that was the better way to do a diff using almost 3 large welding rods
Pep

[Guy]

I can take it out, that's not the reason i had someone weld it for me
I just dont have a welder that's all. But i watched him (my neighbour) weld it
and i'd be shocked if it's the weld, but having said that i've never had a welded diff before,
so i shall inspect

Pep

There is a huge amount of force on those welds, and if the centre was not 100% cleaned of oil they welds may not be all that strong either. This a espicially critical when welding with a MIG as an Stick\ARC can "burn through" a little better (you will still have contaminated welds though)

Thanks for the reply, we pulled the centre apart and washed it out in a bath of thinners
(could that the problem, should i have cleanned it in something else?)
we also arc/stick welded it as i was told that was the better way to do a diff using almost 3 large welding rods
Pep

1st time I did mine I used about that as well .. then it broke (after about 200ks), next time I used about 10 it copped a flogging and didn't break

[alien]

first time we welded mine we filled all the gaps with nuts and bolts that were available, then welded it solid... weld broke cos the bottom of the nuts and bolts wasnt welded... so we did a few nuts n bolts, welded that, few more, welded that etc etc... used about 8-10 sticks i think... never made a peep since =) haha

[bigzuk]

3 rods isnt anywhere near enough

ive seen up to 20 sticks used in welding centres.

[smooooth]

Another thing when you weld the centre make sure you weld the side gear to the carrier end plate otherwise that will be the next bit to brake.

Sam

[Pep]

Another thing when you weld the centre make sure you weld the side gear to the carrier end plate otherwise that will be the next bit to brake.

Sam

If the side gear is wat i think it is, then we did not weld that to the carrier

Pep

[dano80]

The problem with welding a diff, is the fact that centres, including all the sun and spider gears are all hardened. This makes it very difficult for the weld to stick to it. I have also had one let go, it actually tore some of the hardened diff casing off! Never mind, just rewelded with more gusto.
But, bang for buck, theres nothing that'll match it for performance. I did my LWB last night, can't wait to drive a "locked" truck again.