Sway bar mounting attachment

Suspension related stuff goes in here.
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SWhiteley
Posts: 22
Joined: Fri Jul 08, 2011 10:53 am
Your car is a: 1982 Spider 2000 Pininfarina
Location: Belleville, MI

Sway bar mounting attachment

Post by SWhiteley »

On the front suspension, lower A arm, the sway bar (anti-roll bar) mounts to a bracket with two threaded posts.

Should this bracket be solidly attached to the A arm, or just tack welded? One of these brackets on the R side is not attached to the A arm, but once the sway bar, with bushing, is bolted on, it doesn't appear to move and is attached using the lower mounting bolt. Does this bracket need to be welded to the A arm?

Secondly, my front suspension sits very low. I don't know it the springs are standard, or replaced (they are 'rust' colored). Without taking them off the car, how many coils do the standard springs have? Perhaps I can determine if any coils have been cut off.

Thanks.
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RRoller123
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Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: Sway bar mounting attachment

Post by RRoller123 »

year of car?
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
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RRoller123
Patron 2020
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Posts: 8179
Joined: Sun Nov 13, 2011 2:04 pm
Your car is a: 1980 FI SPIDER 2000
Location: SAGAMORE BEACH, MA USA

Re: Sway bar mounting attachment

Post by RRoller123 »

Here is a pic of the front spring from my 80 Spider 2000. There are a total of just under 9 turns on it, and I am very confident that this is the original spring that came on the car.

Image
'80 FI Spider 2000
'74 and '79 X1/9 (past)
'75 BMW R75/6
2011 Chevy Malibu (daily driver)
2010 Chevy Silverado 2500HD Ext Cab 4WD/STD BED
2002 Edgewater 175CC 80HP 4-Stroke Yamaha
2003 Jaguar XK8
2003 Jaguar XKR
2021 Jayco 22RB
2019 Bianchi Torino Bicycle
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azruss
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Joined: Sun May 30, 2010 12:24 pm
Your car is a: 80 Fiat 2000 FI

Re: Sway bar mounting attachment

Post by azruss »

I looked at a pic i had of a spring and it had the same number of coils. As I recall from my old feeble mind was the fronts are the same number of coils. I dont remember if they are different lengths (71 vs 80). I think the 80 rear springs are longer. I put 71 springs on my 80 FI and do not feel they are undersprung.
SWhiteley
Posts: 22
Joined: Fri Jul 08, 2011 10:53 am
Your car is a: 1982 Spider 2000 Pininfarina
Location: Belleville, MI

Re: Sway bar mounting attachment

Post by SWhiteley »

It's an 82. The springs have about 7 3/4 coils...about two too few.
ClarkTheShark

Re: Sway bar mounting attachment

Post by ClarkTheShark »

To answer the OP's question, nothing should be welded on the swaybar. There is supposed to be two threaded studs sticking out of the a-arm that the bracket mounts to. two 13 bolts hold the bracket to the arm.
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toplessexpat
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Joined: Fri Aug 31, 2012 2:29 am
Your car is a: 1976 Spider 1800
Location: Houston, TX

Re: Sway bar mounting attachment

Post by toplessexpat »

On the sitting low question. Have you checked your bushings? Replacing mine lifted the front about an inch.

A
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SWhiteley
Posts: 22
Joined: Fri Jul 08, 2011 10:53 am
Your car is a: 1982 Spider 2000 Pininfarina
Location: Belleville, MI

Re: Sway bar mounting attachment

Post by SWhiteley »

ClarkTheShark wrote:To answer the OP's question, nothing should be welded on the swaybar. There is supposed to be two threaded studs sticking out of the a-arm that the bracket mounts to. two 13 bolts hold the bracket to the arm.
No, there's a bracket on the A Arm. The reason I know it's a 'bracket' - with two studs - is because mine fell off/out :) I can't remove it because the spring is in the way, but the bottom stud goes through the A arm.

The other side - the bracket which holds the sway bar in place had split/sheared. I have a set on the way, but the fact that the A-arm bracket fell off indicates a probable cause for that.

It looks like I'm going to have to remove the A arms, anyway, to replace the bushings. I just looked at them, while they don't seem bad, there's one with a 'rubber peel' (thanks, toplessexpat for making me take a closer look at things).

A simple job always turns into a muti-stage fix-it campaign...the bumper is off, and I just need to mount some Harley Davidson turn signals.
ClarkTheShark

Re: Sway bar mounting attachment

Post by ClarkTheShark »

SWhiteley wrote:
ClarkTheShark wrote:To answer the OP's question, nothing should be welded on the swaybar. There is supposed to be two threaded studs sticking out of the a-arm that the bracket mounts to. two 13 bolts hold the bracket to the arm.
No, there's a bracket on the A Arm. The reason I know it's a 'bracket' - with two studs - is because mine fell off/out :) I can't remove it because the spring is in the way, but the bottom stud goes through the A arm.

The other side - the bracket which holds the sway bar in place had split/sheared. I have a set on the way, but the fact that the A-arm bracket fell off indicates a probable cause for that.

It looks like I'm going to have to remove the A arms, anyway, to replace the bushings. I just looked at them, while they don't seem bad, there's one with a 'rubber peel' (thanks, toplessexpat for making me take a closer look at things).

A simple job always turns into a muti-stage fix-it campaign...the bumper is off, and I just need to mount some Harley Davidson turn signals.
Yes, Ive never pictured this part breaking off. Youre right. The bracket that the bracket fits on should be welded :P
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