Replace Upper Control Arms (pic)

Suspension related stuff goes in here.
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ralphcap

Replace Upper Control Arms (pic)

Post by ralphcap »

Installing new upper control arms that include bushings and ball joint. I have removed the control arm. What is the procedure for removing the ball joint shaft from the spindle?
Image
otter
Posts: 45
Joined: Wed Oct 01, 2008 5:01 pm
Your car is a: 1981 Turbo Spider

Re: Replace Upper Control Arms (pic)

Post by otter »

The old-school way is to use a pickle fork; this may work just fine for you, since you are replacing the ball joint and don't care about preserving this one. An alternate method is to give the ball joint one, or a few, good sideways whacks with a BFH to break the seat on the taper, followed by threading the nut back on and hitting it from below to get it out.
ralphcap

Re: Replace Upper Control Arms (pic)

Post by ralphcap »

Thanks otter. I've used a pickle fork and beat the hell out of the ball joint but it's not budging. Has anyone used heat on the spindle to release the ball joint shaft?
vandor
Posts: 3996
Joined: Sat May 23, 2009 1:23 pm
Your car is a: 1971 124 Spider
Location: Texas, USA

Re: Replace Upper Control Arms (pic)

Post by vandor »

You are supposed to use the pickle fork when the BJ is still attached to the arm, which is attached to the car!
With it flopping around like that you won't generate enough force to remove it.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
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124spiderman
Posts: 106
Joined: Sun Jun 08, 2008 11:43 pm
Your car is a: 1973 CS Spider
Location: Sydney - Down Under

Re: Replace Upper Control Arms (pic)

Post by 124spiderman »

This will work. However It looks as though you have separated the ball joint from the a-arm by the 3 bolts (or rivets).
You should re-attach the 3 bolts and connect it back to the a-arm.
Make sure the a-arm is not supported (ie) the spring must be extended. Jack up the car from the crossmember and place axle stands. The suspension should be hanging. This way the force of the spring helps the ball joint to separate as its tapered fit. DON'T USE HEAT!! You will distort it.
If you don't have a ball-joint separator you can use a ball-pien hammer and hold the hammer face to the top spindle (there should be a flat raised surface) where the ball joint is then hit the end of the ball-pein hammer. NEVER DIRECTLY HIT ANY SUSPENSION OR STEERING COMPONENT DIRECTLY WITH A HAMMER OR ANYTHING.......DANGER - DANGER- !
Last edited by 124spiderman on Tue Aug 27, 2013 3:01 am, edited 1 time in total.
owned: 850, 124S/AC/BC/CC,128SL, 125S, 600D, X1/9, 2300, 131, 132, Uno, Punto
I own: 124CS, 500F, Bravo Sport T-Jet
I want to own: 8V, DINO SPIDER/COUPE, ANY ABARTH, '54 FIAT-TURBINA
ralphcap

Re: Replace Upper Control Arms (pic)

Post by ralphcap »

Thanks 124spiderman. I will follow your instructions.
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124spiderman
Posts: 106
Joined: Sun Jun 08, 2008 11:43 pm
Your car is a: 1973 CS Spider
Location: Sydney - Down Under

Re: Replace Upper Control Arms (pic)

Post by 124spiderman »

Let me know how you go.
I have attached a couple of pics to show you the method I use. (I do remove the wheel however.....)
Image

Image
owned: 850, 124S/AC/BC/CC,128SL, 125S, 600D, X1/9, 2300, 131, 132, Uno, Punto
I own: 124CS, 500F, Bravo Sport T-Jet
I want to own: 8V, DINO SPIDER/COUPE, ANY ABARTH, '54 FIAT-TURBINA
ralphcap

Re: Replace Upper Control Arms (pic)

Post by ralphcap »

Thanks for all the helpful postings. My upper control arms have been successfully installed thanks to two friends and a really big hammer.
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