[80 Tech][ swinging arm bushing]

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JB wrote...
I would like to know what would happen when I if I try to replace the
rollibng bar bushing. Will the bar fall when the bolt is removed or
basically what do I need to do and what happens. It is a case of loosen the
nut bang the bolt out and fit a new bushing and bang the bolt back in and
tighten the nut....
SNIP
Now then JB let's get your terms right. Your subject line is swinging arm
bushing and your text refers to the (I assume ) anti-roll bar.
If you do mean the anti-roll bar - the 20mm 'ish rod bent into 3 straights
anchored near the brakes and then supported further back in some horseshoe
shaped bushes. The its a piece of cake. Its meant to be flexible so its
easy to twist and align etc. The seized bolts will give you more problems
than anything.
But if you mean the big lumps of alloy steel that are held to the axle with
2 bolts and then go back and anchor to the chassis with one bolt, then
that's a different thing altogether.
From the posts of other friends earlier this week you should have got the
message that these are possibly the most difficult to remove of all. Hence
the 'press', gas torch and hacksaw methods.
You have the 80 on level concrete; put the brake on and the tranny in park;
chock the wheel at least nearest the arm you are working on, that is if you
are not using an axle stand. You then remove all three bolts, which should
not be too difficult, then drop the arm off. (Chocking the wheel
opposite is also obviously a good thing to do.)
The bushes do take some getting out, and personally I would not get heat
near the extremely high quality flexible piece of alloy steel that the arm
is made of. I would slip the hacksaw blade into the pivot tube and then
make my way through to the outside of the outer collar. That 1mm saw gap
alone will be enough to allow you to get the bush out. You can use a large
drift a piece of pipe or whatever.
Getting the new bush in will be fun if you have an OEM Toy part. Cos it
will need pressing into the arm. Easy if you have a local mechanic with a
hydraulic press. Otherwise you might get away with the old big washers,
spacer and threaded rod method. Alternatively if you can get hold of a 10
tonne jack you can use that the press it in if you can put it under say a
truck axle or something similar that will not jack up too easily.
Remembering that most workshop hydraulic presses are 20 tonnes.
If using polybushes it should be easier. I have never done one of these
with a poly but they usually come in two halves so after a struggle the arm
fits back into the bracket and the bushes gently seat into the centre after
10 miles driving or so. But others will have far greater experience of this
than me.
Sorry, but I am on digest mode so apologise if this come to me too late,
but surely others have answered your plea for help by now. But I have
copied this direct to your address too.
Cheers
Jon
'92 HZJ80 ex UN surplus in Bosnia
 
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