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Discussion Starter · #1 ·
Hi there Alfisti,
Both front tyres on my 2L 16v widebody are wearing too much on the outside shoulders. The wheel alignment is correct. I think it is due to too much understeer (and off course the way I drive.)
Has any of you tried more negative camber at the front to reduce the understeer? If so how many degrees?
Can it also be due to the tires I have: Firestone SZ40 199/55/15. When I fitted them I immediately noticed less grip than my previous Brigestone RE71's.
Any suggestions welcome.

Thanks
Jacques
 
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Discussion Starter · #2 ·
Hi Jacques
You can't adjust camber angels but toe-in can be adjusted. I believe that toe-in shall be -1 mm (+/- 1 mm).
I don't know the Firestones, but in my experience Firestones don't offer much grip.
If you drive hard in corners it’s not unusual for front tyres to wear more on the outside.
Alfisti regards
Erik
 
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Discussion Starter · #3 ·
Ask any tyre dealer, If you want to do something to realy wreck the handling of your car what should you do.

They all respond fit Firestone Tyres.

Everyone hates them, they have the worst reputation in the business. Hang on I think theres was an East German company called Pneumant who were worse, standard fit on Skodas and Ladas at one time but these days Skoda would never fit these tyres.

I've got one Kwikfit own make tyre on my 155, got a puncture on a Sunday and well it was the only tyre they had. Noticed after about 10,000Km (6000miles)it was wearing a bit badly too, no problem with the Continental even though it was nearly worn to the limit the other side. Although I understand even a Kwikfit ownbrand Centuar is better than a Firestone.
Try swapping them with the back for a while and monitor wear unless your Firestones all around. Mind the car may handle even worse with grippy front and crappo Firestones on the back. If you can confirm its the tyres, stick em straight back on the front and ware them out.

Otherthan that has your car ever had a prang? Even a relatively minor incident can ruin your chasis alaignment, ruin handling and cause uneven tyre wear.

On tyres, Ive ran Continentals and Pirellis all round. Pirellis are good when new but wear out far to fast as are too soft, also can be easily become distorted before they wear out. Continentals, relatively good tyre, but not as much quite as much grip as you might like.

At the moment got Pirellis P6000 on the back, one GoodYear and a Kwikfit on front. Not Ideal.
But still brakes dead straight and stops pretty sharpish. You might think it would be better with the pirrelis on the Front.

I dont know what the experts say but I recon a good pair of pirellis to tame the back or even Yohohamas if you can get them and something a little more hard wearing on the front is the best way for nuetral handling.
 

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Hi Jacques!

A couple of questions - how many miles / km's has your car done & have you had the lower suspension arms changed yet?

If your car has done more than 40k miles, the arms may need replacing. Worn arm cause the suspension geometry to go out of line and one of the symtoms (aswell as knocking from the suspension) is tyre wear on the outside edge.

Get the suspension arms checked out too.
 
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Discussion Starter · #5 ·
Hey Guyz,

I agree with the comments about Pirelli tyres, nice when new but I went throught a pair up front in less than 18 months, already had Goodyear tourings on the back so tried them up front and they lasted twice as long. Got a great deal on a pair of Michelin Pilot Exaltos (£74 each) so running these up front with great fun!, lets see how these last. Incidentally, still got the same Goodyears on the back after 3 years!!
I have uneven tyre wear on the inside edge of one of my fronts, had the geometry checked at my local Alfa dealer and 'the whole suspension needs changing', I'm not convinced as most of the £500 quote was made up of labour charges. Anyone know of a decent independent specialist in the south who can give me an honest opinion and quote??

By the way Rich - check out your 'profile' - i sent you a private message a while back

Regards
Raj
 
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Discussion Starter · #6 ·
Had one of my lower sus. arms replaced early 'cos it had gone "out of tolerance" according to the main dealer. Richwards reply sounds good as I've only know the tyres to wear on the inside, a common 155 problem. I've now got knocking on the front so will have to investigate


wrinx
 
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Discussion Starter · #7 ·
Thanks for all the replies guys,
My front suspension has made a few knocking noises over really uneven surfaces, so my front wishbones may need replacement now. The car has 80 000 km now, so I guess it is time. (Still accident free.) Thanks Richward.
But I still feel the tyres are not up to standard. As I said in the beginning grip felt worse than my previous Bridgestones.

Why is the camber not adjustable? Is it a feature of the MacPherson setup?

Thanks

Regards
Jacques
 
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Discussion Starter · #8 ·
Hi Jacques
The non-adjustable camper angel is as designed by Fiat/Alfa – just as the suspension sockets are not changeable. Unfortunately for car owners, more and more cars are designed so only large components can be obtained, not just the wearing parts. Often not a problem for the first owner but to us, pour souls, who buy cars second hand (or more).
I don’t think that alternative after market wishbones/swing arms are available.

Alfisti regards
Erik
 
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Discussion Starter · #9 ·
In England, I believe EB Spares (Wiltshire?) can do a thorough Suspension check and also supply the wishbone arm/ball joint for approx £45. Failing this, good ol' Mangoletsi will do you a discount if you sweet-talk them.
 
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