993 front monoball (A-arm) installation....

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993 front monoball (A-arm) installation....

Postby 4est on Thu Jun 05, 2008 10:38 pm

The rears are straight forward (did them in a couple hours); the fronts have some adjustment in the larger monoball. It has a plate on the front (?) that you screw on, and I need to know how to set it. Is it to take out any play or what?

I have a couple of hours off tomorrow for the first time in a long while, and since the rest of the suspension is off, now is the time...

Help/guidance please....
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Postby 4est on Fri Jun 06, 2008 4:47 pm

Okay, so the hard to adjust one turns out to be the straight forward one (helps that I found the simple instructions at the bottom of the box).

The burning question is now this: the rearward monoball isn't large enough to fill the hole left by the stock bushing. Everywhere I have seen pix of 993 monoballs there are two sizes; one big fat one, and one that seems more in line with the rear monoballs in terms of diameter. My problem is this:

If I press the old bushing out, I am quite sure that the monoball won't go in there because it is a half inch overall diameter (or more) smaller than the stock bushing. Am I to take the A-arm to a machine shop and have them drill the appropriate sized hole through the original bushing and then insert the monoball into that? That seems to defeat the purpose. Is there some aluminum sleeve or something that I'm missing. If I press the bushing out I will be left with about a 1 7/8 to 2" hole and about 1 3/8 to 1 1/2" worth of monoball to fill it.

Ground to a complete stop. (fun getting dirty, though)

Anyone? Jae, Steve, Kary, Santa Claus?
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Postby Steve Grosekemper on Fri Jun 06, 2008 5:33 pm

4Est

I know it looks that way but it is visually deceptive.
When you remove the rear smaller bushing you will see that there are actually 2 sleeves that are pressed in from each side. The rubber is covering the spacer so it looks like a bigger hole. It is totally different than the front one. And yes it is 1.5 inches ID/OD.
They are also a real pain to get apart so be careful not to mar the control arm hole.
I did a bit of head scratching on my first set as well... and possibly a little muffled profanity.
Make sure the cir-clips are securely locked in place. You may have to dress the face of the arm to get the proper fit.

You are going to love the improvement in turn in! Really a must for any tracked 993/964.
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Postby 4est on Fri Jun 06, 2008 10:35 pm

OK, so I got the rearward rubber out, and see the two pressed in pieces. I will probably cut a relief in them to get them out (I'll be careful). Now back to the forward one: I got the bulk of the rubber out (1 steak knife, 1 blow torch, a dremel sanding barrel or 6, and three beers). Does this sleeve need to come out, too? I feel confident that it does, because it doesn't look like the monoball will fit inside it...
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Postby Steve Grosekemper on Sat Jun 07, 2008 3:31 pm

Yep that one comes all the way out too.
You will have bare aluminum bores to put those mono ball into.
For the rears... just torch out the center and rubber and use a drift from one side to drive out the other side from the middle. Go slow and alternate driving it our from side to side.
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Postby 4est on Sat Jun 07, 2008 9:04 pm

Something like that... They're in. It took about 6 hours to do the first side, and like 1.5 to do the other. Easy, if you know the tricks; I would recommend it, because it's easier than you think AND because it takes forever to do if you're paying $100 an hour. Only for the fearless (re: complete dumbass) because once you start there's no going back (nor bolting it back together and driving it to a pro). Next are springs, and then trying to esimate alignment enough to get it on the trailer to take to a pro for alignment....

Thanks, Steve, for the advice. It gave me confidence to not have you say "stop now and take it to a pro".

Did stainless brake lines and solid motor mounts while I was at it! Just waiting for my connection to come through with springs....
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