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  Topic Review (Newest First)
10-09-2019 12:58 PM
PSk
Update regarding REAR camber setting

I installed an Angle measuring application on my phone and used it (plus a oven tray to get a flat surface on the wheels) and measured both rear wheels angle. So one side was ~1 degree and the other was ~1.8 degrees. So if you take the middle road it matches the wheel alignment specs recorded in the last wheel alignment and therefore in spec ... so all good and my previous attempt at measuring was a fail ... and my garage floor must not be dead flat.

So all good. The issue with MY car is the front as remember the tyres that had to be replaced had just been put on the rear, so yes new top inner bushes/arms will get it back perfectly in spec ...


I'm just enjoying the fun of potential modifications (and yes I know I give others a hard time over this so ... I should have a talk to myself!)
Pete
10-09-2019 01:43 AM
alfettaparts2
156 wheel alignment

Pete in one way itís a shame you didnít find a worn lateral arm or something to explain the rear tyre wear. Check the front because it will effect the rear if itís bad enough. I have even seen the front control arms broken where they mount to the subframe and thus flopping around. By the sound of it you know your car pretty well so I doubt you would let anything get that bad. If everythingís tight I would just be thinking alignment. Never since these cars where new have we needed to replace the rear strut top Bushís but thereís always a first. We have seen maybe two cracked rear suspension subframes in 20 odd years of the 156.
10-08-2019 04:23 PM
PSk A guy in Australia is advertising 2 new top front arms for $200 from memory ... I guess I should have bought them.

Thanks for the advice
Pete
10-08-2019 04:18 PM
alfavirusnz Apologies for the confusion. I see you can get front top arm bushes but doing my sums cost was more, plus I was concerned with harshness and you still have the old ball joint. I managed by being patient to score an OE manufacturer`s part discounted off Ebay UK via one of those big UK parts suppliers who buy in bulk, hit the manufacturers hard and believe in turning stock over rather than having stock sitting on shelves forever. 156`s are getting old now and manufacturers and parts warehouses are wanting to quit stock and replace with product in higher demand. Bargains are to be had if you are patient and decisive.
Re your rear suspension same advice applies recheck your measurements because unless holes are worn out there must be wear in bushes- either that or very poor accident damage repair, ( or some clueless clown`s modification thinking he can make his car handle better than Alfa`s factory engineers).
Great to see your GTV coming along - you`ll be finished before mine the way your progressing , and I`ve got far less to do......
10-08-2019 03:46 PM
PSk
Quote:
Originally Posted by alfavirusnz View Post
Pete, I think you are going to unnecessary trouble and expense. Ive just done the top arms and anti roll bar links on my V6 156 (`98 model) to cure the knock I had occasionally - all up $260 for 2 top arms and two links. I have my own measuring equiptment and is within manufacturers spec which I checked after you raised the question. I have at this stage no abnormal wear on the front (or rear tyres) but as I said tyres are set at 37.5 psi and not Chinese el cheapo tyres either. I think you need to recheck measurements but if still out despite there appearing to be no play replace those top arms.
Note I'm only working on the rear suspension at the moment. I don't believe there are top arms?. I've edited my previous post to include the word REAR, which I had missed ... apologies

But yes I will replace the front top arms, or at least the bushes (and your $260 is good value. No problem there). And yes my new rear tyres are Goodyears
Pete
10-08-2019 03:25 PM
alfavirusnz Pete, I think you are going to unnecessary trouble and expense. Ive just done the top arms and anti roll bar links on my V6 156 (`98 model) to cure the knock I had occasionally - all up $260 for 2 top arms and two links. I have my own measuring equiptment and is within manufacturers spec which I checked after you raised the question. I have at this stage no abnormal wear on the front (or rear tyres) but as I said tyres are set at 37.5 psi and not Chinese el cheapo tyres either. I think you need to recheck measurements but if still out despite there appearing to be no play replace those top arms.
10-08-2019 02:21 PM
PSk Okay, as I have not been working on the GTV, I've put a bit of thought into the 156's tyre premature wearing issue.

  • I have checked all REAR bushes I can see and all appear good, and there is no play.
  • I have measured the REAR negative camber using a T square, the garage floor and some maths and I get ~2 degrees negative camber. This does not match the last wheel alignment recorded settings of 1.3 negative. So either my measuring/maths is wrong or for some reason we have more negative camber now ??
  • I have removed the top bolt of the REAR strut to wheel hub to see what the size is, so I can order the correct eccentric bolt, so I can tune the camber to what I prefer (and also the next owner can return it to factory specs, if so desired, by a simple adjustment). And of course 99% of shops/sites want me to specify the car so they can provide a correct replacement, but that is not the case here, I'm modifying. So never mind, I will keep the bolt and make adjustment plates that can be installed in 4 different orientations to get 4 different camber settings, with one being as it is now.
  • To make the REAR camber adjustable, I need to do a small amount of welding on the struts, so they will be removed to do this professionally, repaint, etc. ......... and while there I will check the top strut bush as I am now wondering if these have failed ???

I want to do this before the front, because I want to be able to use the car for long trips without wearing out my brand new tyres. Then the front (yes I have already designed how I can make the camber adjustable at that end too) and then the aircon (summer is coming, and wife has told me to get it sorted) ... and she will be better than perfect again.
Pete
09-03-2019 04:12 PM
PSk
Quote:
Originally Posted by alfettaparts2 View Post
Pete have you checked the rear lateral arm bushes. They also wear. Jack the rear and try moving the wheel at 9 and three. There should be no play.
I did not feel any play when I recently rotated the tyres, but will double check
Quote:
Front arms wear quickly and are checked every service.
Yes, and I do have play on left front, and suspect that this is where my "little" problem is, i.e. the front top inner bushes are worn, causing extra negative camber on the front resulting in increased inner tyre wear. On top of that I've reduced their pressures to 32 psi, which appears to have been a mistake. The tyres that are now needing replacement have just come off the front, but they are also older than the other pair
Quote:
A good wheel alignment operator can set your car up to your needs. Factory specs are not ideal.
I'm happy to have a little play here and "tone her down" a bit
Pete
09-03-2019 12:01 PM
alfettaparts2
Rear bushes 156

Pete have you checked the rear lateral arm bushes. They also wear. Jack the rear and try moving the wheel at 9 and three. There should be no play. Have seen bearing failures as well.

Front arms wear quickly and are checked every service.

A good wheel alignment operator can set your car up to your needs. Factory specs are not ideal.
09-02-2019 07:22 PM
oz3litre Classic Range Rovers handle quite well for a big solid axle vehicle, but obviously you don’t throw them around like a car. They understeer if pushed too hard. They are very stable at high speed and comfortable to ride in. They were a sensation when they first came out. There is a stretch of undulating, bumpy tarmac on the way to a little town in the south east where we have a folk festival, on which I can drive the the Rangie happily at 130kph, but can’t do that with the GT without losing the body kit and bottoming out the suspension.
09-02-2019 06:30 PM
PSk
Quote:
Originally Posted by oz3litre
One thing I know for sure is never to put cheap Chinese tyres on a car.
Well I have not had any grip issues with the Hifly Hf805215/45r17, and I have driven in shockingly heavy rain (NZ), in fact the 156 is my preferred wet weather car due to the variable speed intermittent wipers and because it is so sure footed.

But again my cornering limits are now tiny, but yes in the dry I can make the front loose grip if I do push it, but I've always blamed the FWD chassis for that. I've only really pushed her hard up some windy roads once and I thought the grip and chassis confidence was great, so good that when I got to the top I apologized to my son for going too hard on a public road, but he was happy

Anyway, this minor speed bump is all part of living with a great car. I can spend more on tyres this time.
Pete
ps: I've never driven a Range Rover, but always assumed that as the body is sitting on top of a tall building, poor handling and low grip levels would be the norm, so yeah you don't want poor tyres too.
09-02-2019 05:32 PM
oz3litre I’m currently running 35/34 on my GT 3.2 V6, which seems OK. The sticker on the door says 36/35 but I have KW V2 coilovers and it is a bit hard with those pressures. Some of my GT mates run 34 all round. Wear wise it is fine. We are running Pirelli Dragonsport tyres on the GT, 159 TBI ti and my daughter’s 156 Twin Spark and they are excellent. We got 55,000 km out of them on the diesel Sportwagon with the 19” wheels. They ride and handle beautifully and are competitively priced.

One thing I know for sure is never to put cheap Chinese tyres on a car. We had a set of almost brand new ones on our 75 that came with the 17” wheels we bought and they were lethal. I think they were called Hurricane, or something, I can’t quite remember. The car was sliding around on dry bitumen at very moderate speeds. Both of my brothers had some on their Range Rover Classics and had the same problem and they were even worse in the wet. One of them lost control in the hills at low speed on a damp surface and wrote the car off after hitting an oncoming vehicle. You have to wonder how many of the cars involved in head on crashes and running into trees are running Chinese rubbish. The ones we had would kill you for sure. They should be outlawed.

As a matter of interest, my brother and I are currently running Falken Wildpeak AT 215/75/16 tyres on our Range Rovers and they are super quiet, with excellent grip and handling. An Alfa Club friend got a still legal 55,000 km out of a set on his Pajero and bought another set because they were so good. I got mine on a four for the price of three deal, with free wheel alignment which worked out to about $185 each.
09-02-2019 03:22 PM
alfavirusnz Pete, I bought my Bridgestones direct from a Bridgestone store. Don`t assume that the multi brand "independents" are cheaper. I also turn up at the store when they are not super busy and negotiate a price but have done my research re normal retail, tyre choice suitable for the car and my driving style so the wool can`t be pulled over my eyes. Towards the end of the month (inside the last week) is also a good time if you are able to manage timing as store managers are under pressure to achieve numbers be it achieve target or better last months figures. Bridgestone and Beaurepairs are the best ones to negotiate with as they are direct representatives of the manufacturers and thus have more room to move as there is much greater emphasis on numbers sold and market share.
09-02-2019 02:50 PM
PSk Okay I've just got a quote for the tyres you guys use and yeah a lot more expensive than what I put on last time, so I went too cheap, but other than wear was happy with them. As alfavirusnz said, you get what you pay for, but I also think I ran them low as you both run on the higher side based on "my" manual.

FYI - Michelin is $269 each. The place I rang didn't have the Bridgestones but said the Continental MC6 is equivalent and $209 each, but they also have a Falcon @ $199.

Think I'll also pay a visit to a wrecker and grab top front suspension components. This will give me some spares to play with
Pete
09-02-2019 01:35 AM
PSk 2.2 bar = 32 psi
2.5 bar = 36 psi

My manual tyre pressure page:
Pete
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