Lifting 124 with rear suspension hanging

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cgranju
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Lifting 124 with rear suspension hanging

Post by cgranju » Mon Sep 30, 2019 9:25 pm

Does anyone here know what the real thing is with damaging rear shocks on a 124 by allowing the rear axle to hang (ie lifting the body without the axle supported)? Seems I had it in my mind this was something to be mindful of for original type shocks, not gas shocks & I dunno about other oil shocks like Konis.

So what is the real skinny on this? I’d figure 124s get picked up all the time via their jack points and I don’t hear people all the time (social media would be an indicator) talking about how their shocks got frozen from over-extension.

Thanks in advance for indulging my 101 question.
Chris Granju
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owner of a number of Fiats built prior to 1986
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kmead
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Re: Lifting 124 with rear suspension hanging

Post by kmead » Mon Sep 30, 2019 10:04 pm

Most cars use the shocks for the maximum travel limiter of the suspension. This is likely an old wives tale.

Would I leave my car for months with the rear axle hanging from the shocks? No but I doubt there would be any issue with having it hang for the period needed to do any service.
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sams
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Re: Lifting 124 with rear suspension hanging

Post by sams » Mon Sep 30, 2019 11:01 pm

Not an old wives tale. I had two different sets of NOS OEM rears freeze in the full extended position after only briefly being up in the air. Never had that problem with other shocks. Don't know what the cause is, although I have a vague recollection of KD @ WC Motors commenting on it years ago.
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miker
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Re: Lifting 124 with rear suspension hanging

Post by miker » Tue Oct 01, 2019 12:11 am

Happened to my 1981 Anniversary edition that had original shocks. Broke the shock mount on the axle as a result.
MikeR (mirafiori.com since 1995)


1977 Fiat 124 Spider
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2012 Fiat 500 Prima Edizione #236 (now owned by my son David)
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cgranju
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Re: Lifting 124 with rear suspension hanging

Post by cgranju » Tue Oct 01, 2019 12:35 am

Interesting & a bummer to hear. Were these cases mentioned where the suspension was hanging/unloaded or also with arms/brake cable/driveshaft off?

I swear I read about the risk of damaging the shocks in a shop manual back when I was a lot younger. I also recall (I guess not here..maybe at FS?) reading about someone who had fabricated some sort of runner type setup to prevent this from happening when using a 2 post lift.

Of course, at this point in time, how many of these cars are still using their original or even OEM shocks?....
Chris Granju
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owner of a number of Fiats built prior to 1986
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friedman
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Re: Lifting 124 with rear suspension hanging

Post by friedman » Tue Oct 01, 2019 8:46 am

Chris, what are you planning to do to the car that you need to hang the rear end? Many times when I had cut springs for my spiders I had to make limiting straps to keep the axle from dropping so far the springs would get lose. Easy enough to make with generic plastic coated cable and clamps.
Carl in Virginia
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cgranju
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Re: Lifting 124 with rear suspension hanging

Post by cgranju » Tue Oct 01, 2019 8:32 pm

I was thinking about the luxury of doing maintenance with the car on a lift. knowing (I think) that people lift 124s all the time without the shocks failing left & right made me pause. That said, yes, limiting straps for service, simply because of short springs, is what I was thinking. I’d say unless I have been intentionally dropping the rear axle, I have always lifted & supported 124s by the axle.
Chris Granju
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owner of a number of Fiats built prior to 1986
fiatrn
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Re: Lifting 124 with rear suspension hanging

Post by fiatrn » Tue Oct 01, 2019 10:13 pm

I wonder if you could use a set of Alfa limiting straps on a short-sprung Fiat?

https://centerlinealfa.com/catalog/rear ... mit-straps
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Re: Lifting 124 with rear suspension hanging

Post by Slartibartfaster » Wed Oct 02, 2019 11:20 am

Don't forget the rear center brake hose can be damaged if the rear suspension is in full-droop, and the damage is internal so you won't know it till you drive it and the rear calipers cook.
This is apparently is common knowledge, but got me anyway.
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cgranju
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Re: Lifting 124 with rear suspension hanging

Post by cgranju » Thu Oct 03, 2019 9:23 am

I will see how my cars do. Maybe it’s a good reason to have the addco type rear anti-sway bar (which I have usually had & so why I don’t recall having issues).
Chris Granju
sunny East TN
owner of a number of Fiats built prior to 1986
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