Idler Arm Problem

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In the Shed
Posts: 1992
Joined: Wed May 16, 2012 10:18 pm
State: SA
Location: South Australia

Idler Arm Problem

Post by In the Shed »

Hi Folks

Fiddling with the steering today and noticed some play in the idler arm where it fits onto idler lever support. Tried to tighten (fiddle) with hex head and now I have a gap between idler arm and idler lever bush (hex head). Pics probably show it better.
IMG_4265.jpeg
IMG_4265.jpeg (1.68 MiB) Viewed 208 times
I believe there is a left hand thread where it goes into the idler lever support (part bolted to sub frame).
IMG_4265.jpeg
IMG_4265.jpeg (1.68 MiB) Viewed 208 times
I think I need to unbolt the idler lever support from sub frame to tighten up the left hand thread? Or do I need to remove the idler arm off the steering rod?

Advice appreciated.
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IMG_4263.jpeg
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A day in the shed beats a day at work!
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Errol62
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Joined: Sat Dec 06, 2014 2:44 pm
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Re: Idler Arm Problem

Post by Errol62 »

New ones aren’t dear Stephen, if you’re mucking around with it, and they do tend to wear. It might be a good time to replace it. Car Parts Plus at Lonsdale would probably have one in stock. If not then half a day away.


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In the Shed
Posts: 1992
Joined: Wed May 16, 2012 10:18 pm
State: SA
Location: South Australia

Re: Idler Arm Problem

Post by In the Shed »

Thanks Clay
Will have another look today, just want to make the run on Sunday and would probably need replacement due to wear as you say.
Stephen
A day in the shed beats a day at work!
ardiesse
Posts: 1103
Joined: Thu Jan 19, 2017 9:57 am
State: NSW
Location: Sydney

Re: Idler Arm Problem

Post by ardiesse »

Stephen,

The internal and external threads in the idler arm bush are of opposite "hands": one's left-hand, and one's right hand. Wait . . .
(Re-reads posts)
Yes, you're aware of that.

You'll need to take the idler arm and support off the car as an assembly (undo steering linkages, unbolt idler arm support).
Then you can attempt to wind the idler arm and bush another full turn onto the support. Go gently, because you'll be squeezing grease out.

But if it's up-and-down motion at the end of the idler arm that you're trying to get rid of, all Holdens have some clearance between the idler arm bush and the support. Otherwise the steering risks binding. I'm going to advise against replacing the idler arm bush and support, because I doubt you'll see any meaningful improvement in free play with new parts.

One of the old-timers says that when idler arm play became excessive, he used to take the support down to an electroplater's and get them to copper-plate the thread (but this was on taxis).

And play in the idler arm was one of the stock "fails" for registration inspections that garages used to hit me with in the 80s and 90s. They'd grudgingly let the car through when I told them, "sure, I can replace the idler arm support and bush, but I can almost guarantee the new parts will have the same free play as the old."

Rob
In the Shed
Posts: 1992
Joined: Wed May 16, 2012 10:18 pm
State: SA
Location: South Australia

Re: Idler Arm Problem

Post by In the Shed »

Thanks Rob

Took the idler support arm off the sub frame for a better look. I’m no Holden expert but I reckon the part below is not original!
IMG_4273.jpeg
IMG_4273.jpeg (959.83 KiB) Viewed 147 times
Winding the bush onto the idler support arm feels a good fit. So greased up the parts and reassembled as per manual. There is play where the idler arm goes into the steering rod so another job to look at that one day.

Thanks all.

Regards
Stephen
A day in the shed beats a day at work!
Blacky
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Joined: Tue Jul 20, 2004 8:58 am
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Location: up in the Perth hills

Re: Idler Arm Problem

Post by Blacky »

In the Shed wrote: Sun Sep 15, 2024 9:30 am I’m no Holden expert but I reckon the part below is not original!

How could you tell ???? :lol:
I started with nothing and still have most of it left.


Foundation member #61 of FB/EK Holden club of W.A.
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