Steering Idler-arm bushes - how do I replace them?

More threads by B13

B13

New Member
Messages
686
Points
0
Location
Victoria
Mine are worn, how do I replace them?

Thanks in advance,

Ian.
 

s class

New Member
Messages
789
Points
0
Location
South Africa
Its fairly self evident once you get under there. The kit contains new bushes, bolt, nut, washers etc. Just undo the old nut and draw out the old bits. Be warned that the nut is usually torqued to some ridiculous torque, so the only difficulty is usually getting enough leverage on the breaker bar to loosen it. I'm not sure what the actual torque spec is, I dont have my references here with me at work.
 

WGB

New Member
Messages
1,289
Points
0
Location
Perth Western Australia
AutohauzAZ sell a kit that replaces the nut, bolt and bushes.

The bushes are rubber with a metal insert.

You need a balljoint splitter to remove the two ball joints from the idler arm and then the nut is undone and the large pin (bolt ) removed.

The idler arm body is welded to the chassis and is non removable.

The old bushes can be pushed, pulled or driven out top and bottom.

New bushes are pulled in with rubber lube and a bolt and nut.

On a 6.9 the original pin was pushed in from above with the nut at the bottom but if you want to replicate this you need to remove the starter motor - from memory. Most RHD 6.9's have the replacement bolt inserted from below with the nut at the top which seems to work fine.

There is a large washer under the idler arm and I think this is used to get the idler arm at the same height as the steering drop arm -so take note when you remove it to see where the thick washer goes.

If you torque up the head of the bolt (if inserted from below) as opposed to the nut use care as I slipped and fractured my right ring finger just as the torque wrench went click - ouch.

Large nut and bolt is torqued to 120Nm and the ball joint nuts to 35nm.

All parts in the steering are very economical to purchase from AutohausAZ so get everything you need before you start and then get one wheel alignment.

Bill
 

Styria

The Godfather
Moderator
Messages
8,861
Points
177
Location
Sydney
Hi Bill,

I have always had to partially remove the starter motor in order to remove the long bolt from the assembly.

For some reason, I have always refrained from inserting the replacement bolt from below, and with the starter already out of the way, it seemed somewhat of a folly to depart from original fitment - anyway, that's just my opinion and the way I have done them. Regards Styria
 
Similar threads
Thread starter Title Forum Replies Date
Oversize Boost Gauge & Steering Wheel Interiors 4
S Steering Wheel Lock Articles 12
Michel Wanted Steering Wheel for W116 Gumtree/eBay/Facebook Listings 11
B Wanted: steering wheel cover information Interiors 2
c107 W123 power steering Mercedes W123 6
Styria Power Steering Pump Technical Information 1
S Smaller steering Wheel Mercedes R/C107 13
Oversize W126 Steering Columns Mercedes W126 42
motec 6.9 New W116 steering box Gumtree/eBay/Facebook Listings 5
Oversize Wood trim steering wheel on Ebay Gumtree/eBay/Facebook Listings 0
Oversize Steering column alignment Mechanicals 6
Oversize Steering Wheel protection Interiors 39
motec 6.9 Nardi Steering wheel Gumtree/eBay/Facebook Listings 2
4 Cutting out on full steering lock Also when heavy braking Mercedes W116 15
mrkozzy Steering wheel repairer Recommended Suppliers 0
Styria Creaking Noise - Steering Box Mechanicals 18
Styria Steering Box - problem solved Technical Information 21
Oversize 6.9 Steering Oddity Mechanicals 3
Styria Fix your Steering Box Technical Information 0
SELfor50 HD Bilstein Shocks, Steering Wheel, Boot Carpet / Rubber & Misc Gumtree/eBay/Facebook Listings 1
Michel Steering Woes Mechanicals 12
Styria Removal of Steering Box Mechanicals 19
Styria 6.9 steering box problems Mechanicals 20
SELfor50 Power Steering Noise (or maybe something else?) Mechanicals 19
WGB Steering Centralisation Mechanicals 5
B Steering groaning when turning right. Mechanicals 14
B 6.9 steering tie-rods Mechanicals 5
J Replacing seals in a power steering box Mechanicals 10
SELfor50 Removing the Ignition Barrel & Steering Lock Mercedes W116 4
B 15 inch steering wheel with OBA large spline Hub. Gumtree/eBay/Facebook Listings 3
Michel Need Steering Wheel Gumtree/eBay/Facebook Listings 7
L Steering Box Question Mechanicals 5
Des AMG Style steering wheel Gumtree/eBay/Facebook Listings 11
SELfor50 Wooden Steering Wheel With BOSS KIT Gumtree/eBay/Facebook Listings 19
Styria Steering Wheels and Instruments Interiors 17
B Steering Box replacement Mechanicals 8
Des Steering wheel question(s) Mercedes W116 21
WGB Steering Spindle Ball Joint press tool Mechanicals 2
Styria Steering Failure - saved by providence Mechanicals 28
s class W140 parking brake, upper control arms, steering assistance Talking Torque 0
SELfor50 Steering wheel boss kits Interiors 11
Michel Nice Steering Wheel Gumtree/eBay/Facebook Listings 2
Michel Steering Wheels -Timber/Leather Recommended Suppliers 22
Michel Mercedes Steering Wheel Gumtree/eBay/Facebook Listings 3
1 Merc 6.9 Euro idler pulley and bracket Mercedes W116 13
WGB Pictorial - Rear End Rebuild Part 7 - Diagonal arm bush replacement Technical Information 1
WGB Front suspension lower arm rebuild. Technical Information 9
WGB Assistance required with orientation of front lower arm bushes. Mechanicals 1
WGB Rear trailing arm bushes - replacement in-situ possible? Mechanicals 2

Similar threads

Top