rear suspension done

Suspension related stuff goes in here.
geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

rear suspension done

Postby geospider » Sun Jun 04, 2017 8:29 pm

just finished the rear. what a difference with the AR springs and Koni yellow; damn good looking with the blue springs too.
ride height sure looks good
first corner felt great and still have the front to do.
torquing the upper trailing arms loaded is a PITA; esp driver side rear.

question: the linkage for the rear brake modulator; from the axel going upward: there is a joint with some kind of bushing: mine fell apart. any ideas? not even sure what to call it.

thanks

geo

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Sun Jun 04, 2017 8:55 pm

OK, so just looked at AR: is there anything they don't carry? found the linkage rod bushing.
what I can not find anywhere: nuts for the window regulator: M5-1.0

BEEK
Posts: 1791
Joined: Wed Mar 24, 2010 10:45 pm
Your car is a: 1975 Spider
Location: clermont fl

Re: rear suspension done

Postby BEEK » Sun Jun 04, 2017 10:31 pm

m5-.8
Automotive Service Technology Instructor (34 year Fiat mechanic)
75 spider
, (5)and # 6 is on the way. 76 scorpions New Scorpion 24k original miles (Silver)
2014 500L Daily driver

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Mon Jun 05, 2017 2:00 am

that does seem to be standard
have tried that size and spun the stud
Vick's said 1.0
have a replacement regulator and don;t want to do that again. may take a dye and recut so i know for sure.
M5 .8 only goes about 3/4 rotation, then stop

JohnMc
Posts: 103
Joined: Mon Aug 10, 2015 8:30 pm
Your car is a: 1970 Fiat 124

Re: rear suspension done

Postby JohnMc » Thu Jun 08, 2017 10:44 am

I just take the part, if I can, to the store to use the thread checkers that they have.
But you can also buy one - as example. https://www.ebay.com/i/192144099848?chn=ps&dispItem=1
The M-5 has various pitches - fine and course - believe .8, 1.0 1.25 and maybe more.

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Thu Jun 08, 2017 9:49 pm

thanks,
went to the fastener specialty place around here. they have everything...except a nut for this.
i am not sure what the pitches mean in metric, but it did not match up with .8 or 1.0. the guy thought it might be a .75.

got it from Vick's called them to see if they have any nuts that work on the art they sell. they are checking.
3 nuts and i can finally roll up the window. I can't imagine that the AR part would be any different.

thinking of drilling out the studs and using bolts and nuts.

this has been crazy

profcucchi
Posts: 213
Joined: Sun Oct 23, 2011 2:12 pm
Your car is a: 1979 Fiat 2000
Location: Toronto, On

Re: rear suspension done

Postby profcucchi » Sat Jun 10, 2017 2:08 pm

AR performance springs and Koni Yellows?

Nice!
1979 Fiat 2000 "Luigi"

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Sat Jun 10, 2017 9:36 pm

yes it is.
now i need a weekend to do the front: all steering linkage, front A arm rebuild, springs and shocks.

cant wait to get it done :D

User avatar
phaetn
Posts: 500
Joined: Thu Jan 02, 2014 7:42 pm
Your car is a: 1974 Fiat Spider 1800
Location: Ottawa, ON Canada

Re: rear suspension done

Postby phaetn » Tue Jun 13, 2017 8:56 am

I have the same set up: A/R progressive springs with Koni yellows.

I ended up putting in longer bolts from the crossmember to control arms as otherwise I was running out of thread with the changed steering geometry of a lowered car.

Cheers,
Phaetn
1974 CS1 Spider
32/36 DFV carb
Allison's CompuTronix electronic igntion
Vick's stainless header; no cat
A/R's progressive coils, Koni Yellow dampers
205/50-15 Dunlops on CD-66 style wheels
Momo steering wheel, Corbeau seats and harness
pics and HD vids

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Wed Jun 14, 2017 3:21 pm

Thanks Phaetn,
as I delve into the front end; hopefully in a week, I will take notice. I am assuming that may mean more shims as well.
I am sure you are enjoying your ride.

Geo

User avatar
phaetn
Posts: 500
Joined: Thu Jan 02, 2014 7:42 pm
Your car is a: 1974 Fiat Spider 1800
Location: Ottawa, ON Canada

Re: rear suspension done

Postby phaetn » Wed Jun 14, 2017 4:09 pm

Yes, I love the lowered ride. Well, I was enjoying it until I understeered into a sidewalk at the end of last season and have been chasing front end issues ever since. :) I might have bent the unibody. That said, I think I also have a tired steering box...

I am considered getting a new cross-member at some point next year when I pull the engine to have the bottom end rebuilt, but sometimes older is better.

Yes, I imagine you will need shims. Be prepared for some tricky alignment work -- a lot of shops won't have data for our old cars in their machines. Some know what they are doing, others will be totally non-plussed because they only work with modern struts.

It can be tough to get the old bolts out - they are tack welded and the rear one is inside the cross member so very, very difficult to get at. I spent hours inserting the rear bolt through the hole on bottom of the control arm then fishing it through (a magnet on a telescoping stick yielded the best success). I'm getting some work done again and might just have a shop cut a door flap in the crossmember and then weld it back shut. Also, the new bolts will rotate if they are not themselves tack welded. Instead I had a nut welted to the side of the head so it wouldn't spin once it levered against the bottom of the crossmember.

Good luck!
1974 CS1 Spider
32/36 DFV carb
Allison's CompuTronix electronic igntion
Vick's stainless header; no cat
A/R's progressive coils, Koni Yellow dampers
205/50-15 Dunlops on CD-66 style wheels
Momo steering wheel, Corbeau seats and harness
pics and HD vids

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Thu Jun 15, 2017 12:26 pm

We tend to have projects with these great cars anyway. now you have the self inflicted kind: so sorry for that.
Hope you get it going. I'll post as I go with the front. Thanks for the advise on the front end.

Geo

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njoconnor
Posts: 582
Joined: Thu Jul 05, 2012 7:06 pm
Your car is a: 1972 124 Spider

Re: rear suspension done

Postby njoconnor » Sun Jul 02, 2017 8:05 pm

Just to encourage you as you work the front ends.....

Image

Spouse sez they are the best upgrade/addition I've made to the car.....

Neil
Neil O'Connor
Madison, WI
72 FIAT 124 Spider
12 Jeep Grand Cherokee Overland Summit
14 Ram 1500 Laramie Longhorn Eco-Diesel
ex-71 FIAT 124 Coupe
and a host of Audi's, Saabs, VW's, MOPAR's, Fords, and a Bimmer....

geospider
Posts: 141
Joined: Mon Mar 20, 2017 9:07 pm
Your car is a: 1979 Spider 2000
Location: concord, ca

Re: rear suspension done

Postby geospider » Wed Jul 05, 2017 12:04 pm

Thanks for the encouragement. looks like we have the same components.
looks like you have the new A-arms; AR didn't have in stock so I have all the parts and will rebuild, repaint. a learning experience.
just doing the rear was a nice change. Looking forward to the front.
A bit derailed right now: hoping I don't have a crack in the top of the head near my temp gauge sensor.

either way, will start in the front this week. An upcoming week off from work will give me plenty of time/no excuses.

Geo

User avatar
njoconnor
Posts: 582
Joined: Thu Jul 05, 2012 7:06 pm
Your car is a: 1972 124 Spider

Re: rear suspension done

Postby njoconnor » Thu Jul 06, 2017 11:21 am

Yup: Koni yellows at full soft, and A/R springs on mine as well. The fact that the A/R springs color matched my car was bonus!

I decided to go with new C-arms/ball joints. Cleaning/painting would have cost less, but I*know* the new ones are solid.

Was driving it yesterday to work (and tomorrow as well: last day at work, retirement starts 1630 tomorrow!). Biggest damn grin on my face all the way in, and continued despite the rain storm yesterday afternoon (and the wipers work!!).

Just be patient and safe with the work. Search on my old posts for a cautionary tale about risks....

Neil
Neil O'Connor
Madison, WI
72 FIAT 124 Spider
12 Jeep Grand Cherokee Overland Summit
14 Ram 1500 Laramie Longhorn Eco-Diesel
ex-71 FIAT 124 Coupe
and a host of Audi's, Saabs, VW's, MOPAR's, Fords, and a Bimmer....


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