Upper Arm Installation

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Zulu

Upper Arm Installation

Post by Zulu »

After blasting, painting, and bushing our suspension arms we are finally ready for reinstallation. Unfortunately, the upper arm doesn't fit. None of our four arms will fit around the shock tower.

Image

Does anyone have any advice? The inner metal bushing is flush with the inside of the rubber, should that be pressed out towards the outside? Thanks in advance.

Austin
dmwhiteoak
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Your car is a: 1972 Fiat 124 spider
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Re: Upper Arm Installation

Post by dmwhiteoak »

It looks like your bushings are set too far in.
Dennis Modisette

1972 124 Spider
2003 Chevrolet Z71
2007 GMC Yucon
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focodave
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Re: Upper Arm Installation

Post by focodave »

Agreed, with Dennis.
The bushings appear to be pushed into the a-arms too far.
Simply press them back out slightly, to obtain proper clearance.
Dave
1980 Spider 2000 F.I. (my hobby)
1970 MGB GT (my other hobby)
2008 Ford Expedition (daily driver)
2019 Harley-Davidson Electra Glide Standard
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So Cal Mark

Re: Upper Arm Installation

Post by So Cal Mark »

there should be a row of ridges on the bushing shell. If the bushings are pushed past those ridges, they're in too far. One bit of advice. Once you get the bushings at the right depth, put some lube on the very end of the bushing where it contacts the shock tower. That will prevent squeaks
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focodave
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Re: Upper Arm Installation

Post by focodave »

I used Novagard G623 Silicone Grease compound on mine.
If you use petroleum-based grease, it may deteriorate the rubber over time.
1980 Spider 2000 F.I. (my hobby)
1970 MGB GT (my other hobby)
2008 Ford Expedition (daily driver)
2019 Harley-Davidson Electra Glide Standard
2019 Harley-Davidson Iron 883 Sportster
dmwhiteoak
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Joined: Mon Aug 15, 2011 1:12 pm
Your car is a: 1972 Fiat 124 spider
Location: White Oak Tx

Re: Upper Arm Installation

Post by dmwhiteoak »

I used nothing on mine and it squeaks to no end. Use what is recomended, you will be glad you did.
Dennis Modisette

1972 124 Spider
2003 Chevrolet Z71
2007 GMC Yucon
vandor
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Re: Upper Arm Installation

Post by vandor »

FWIW, there is a chance the ridges (which are not supposed to be pressed into the arm) have made the bushing holes (in the a-arm) bigger, and once the bushings are pushed out they will not be tight enough.
I've seen bushing sleeves tack welded to the arm...
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
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Co-owner of the best dang Fiat parts place in town
Zulu

Re: Upper Arm Installation

Post by Zulu »

So the flange on the bushing is not supposed to be pressed up against the control arm?

EDIT: Here are close up photos of the bushing:

Image

Image
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focodave
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Re: Upper Arm Installation

Post by focodave »

Zulu,
Here is a poor-quality photo of one of the original control arms I pulled off of my car.
Referencing what Mark said, see how the ridges in the bushing are visible?
The bushing should be pressed into the arm until the bushing ridges contact the receiving sleeve in the arm.
Dave

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1980 Spider 2000 F.I. (my hobby)
1970 MGB GT (my other hobby)
2008 Ford Expedition (daily driver)
2019 Harley-Davidson Electra Glide Standard
2019 Harley-Davidson Iron 883 Sportster
bobplyler
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Re: Upper Arm Installation

Post by bobplyler »

Here's some pictures of a new arm I haven't installed yet.
Image
Image
Image
1979 Fiat Spider (since new)
2005 Lincoln LS (the wife's car)
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Zulu

Re: Upper Arm Installation

Post by Zulu »

Thank you for those pictures, I see now that we pressed the bushings in too far. I'm assuming then that we've ruined both the bushings and the arms.

Before we pressed the bushings in, they would simple slide in to what I now know is the proper depth. So I'd assume my arms were messed up from the start.
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