GTE Wishbones - What have I done wrong here?

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GTE Wishbones - What have I done wrong here?

Post by MightyMite » Sat May 02, 2009 7:31 pm

Right whats up here...

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Suspension has been stripped, painted and I've fitted poly bushes and new top ball joints.

The castor angle on the upright is too much and the front arms are too close together for the ball joint to fit. the arms would need to be about 1/2inch further apart for it to work. I have a workshop manual but I have my doubts about it. It shows the anti roll bar mount on what I think is the wrong side... It doesnt show any spacers for the top bushes...

So are there some parts which are sided which I've got mixxed up?


Also I have 3 spacers about 5mm thick, I think there something to do with the bottom shock mounting plate/bottom arms. But again the workshop manual doesnt show them...

Anybody?




Thanks, Adam


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Post by philhoward » Sat May 02, 2009 7:45 pm

You have either 2 front or two rears there - ones is cranked more than the other. Have a look at the other "pair"...


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Post by scimjim » Sat May 02, 2009 7:48 pm

have a look at this thread.

All four wishbones are handed and not symmetrical.

As Phil says, you've got two fronts on the same side - the other side will be too far apart.

Judging from the castor angle, you've got the bottom ones mixed too.


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Post by Coupe Racing » Sat May 02, 2009 7:50 pm

Hi Adam

sent you an MSN messege to help

Steve


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Post by philhoward » Sat May 02, 2009 7:51 pm

Or the bottom ones are upside down...

Washers should be between the wishbone and shocker plate from memory.


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Post by MightyMite » Sat May 02, 2009 8:24 pm

I sorted it out more or less straight away :lol: Top right arm was wrong. All bolts together fine now. I took a look at the bottom arms and couldnt really see any difference so just chucked them on :oops:


Whats the differences? Baring in mind it all bolts up fine now with out needing to force anything to line up


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Post by scimjim » Sat May 02, 2009 8:41 pm

All 4 arms are not symmetrical.

The lower arms are very difficult to tell apart unless you put them together.

There was a Service Bulletin about it because so many dealers were assembling them incorrectly - send me your email address and I'll send you a copy.

I have all of the GTE/GTC service bulletins scanned now and will put them in the members area at some point.


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Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
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Post by MightyMite » Sun May 03, 2009 12:18 pm

Hey Jim I've PM'd you my email address.

Any body able to say right now what the differences are? As it kind of slows the day down a bit :lol:


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Post by MightyMite » Tue May 05, 2009 8:50 pm

Thanks for the letter Jim but I'm now more confused than ever. It makes no referance to the lower arms being not symetrical. It goes on about the tops arms having to be the right way around, like my first cock up and the lower arm mounts having offset studs... Which mine don't!

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How can this be....

Another thing the letter says is that for manual steering car's the top arms should be assembled with the deepest offset top arm facing the rear of the car. Mine has it at the front and I really don't think the upright could be persuaded to move enough to allow the top arms to be positioned the 'right' way round.


I didn't know they did PAS Se5A's Could it be that all this offset stuf and top arm jiggery pokery only applies to the later Se6? Please say yes :lol:


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Post by scimjim » Tue May 05, 2009 9:47 pm

That'll teach me to look at the parts manual first :oops: the letter applied to SE6/8 series cars and the 5 series (they never did a PAS 5) are the same as a PAS SE6/8 (cranked wishbone to the front).

The reference to offset lower mounting brackets is obviously only 6/8 series (5 series are symmetrical).

As I mentioned, there's no reference to the lower arms being non-symmetrical - but the part numbers are different. It's a long time since I did the job but if you put the lower wishbones together I seem to remember there's a very small difference (which is why you don't just flip them upside down and swap front to back when lowering the suspension - but swap sides too)


Jim King

Current: SE5 (8Ball), TI SS1 (snotty), 1600 SS1 (G97), 1600 SS1 (C686CCR), 2.5TD SE5a (diesel 5a), 6 x random other SS1s.
Previous: SE5, 3 x SE5a, 2 x SE6a, 3 x SE6b, GTC, 2.9i GTC, 3 x 1600 SS1, 1300 SS1, Mk1 Ti Sabre, Mk1.5 CVH Sabre
Chief mechanic for: 1400 K series SS1 (Megan3), 1400 CVH EFi SS1 (Grawpy), Sabre/MX5 auto (The Flying Broomstick),
1300 SS1 (Number One) & Sarah's coupe.
CURE THE FAULT - NOT THE SYMPTOMS

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Post by stocks71 » Tue May 05, 2009 10:33 pm

I am making a note of all of this. Very helpful. Gonna tackle all this in a week or to when the Gaz shocks arrive and I can spanner about some. Cheers guys.


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Post by Nick_F » Tue May 05, 2009 11:18 pm

I have Jim's manual...

There are only two part numbers for lower wishbone arms for Se5(a):

206035: Rear RH and Front LH
206038: Rear LH and Front RH

This suggests to me that the built-up wishbone must have front/rear symmetry.

The arms do have a right and a wrong way up, however. The right way is to have the trunnion pivots offset downwards: the other way up lowers the ride height by an inch or so. Only an issue if you don't remember to do the same on both sides of the car.

It's a good idea to loosen/remove the bolts that hold the damper mounting bracket to the wishbone arms before tightening the trunnion pivot bolt.


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Post by MightyMite » Wed May 06, 2009 8:42 pm

The only part numbers I could find on the arms were different too either of the ones you posted Nick. So I done some measuring of the built up suspension to see if I could find where the differences lie. I didn't find anything so they are now on the car :P

If it does turn out to be a problem, it's no big deal if they have to come back off.


Adam


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Re: GTE Wishbones - What have I done wrong here?

Post by Ollieoldbeard » Mon Sep 14, 2015 9:09 am

wheres the best place to get the "poly bushes" ?



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Re: GTE Wishbones - What have I done wrong here?

Post by Coupe Racing » Mon Sep 14, 2015 9:16 am

Try the recognised traders


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