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Topic: Problems come in two's (Read 1182 times) |
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Chieftain
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Problems come in two's
« on: Jun 19th, 2007, 7:20am » |
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Firstly, noticed recently that if I allow the steeering wheel to slip through my hands to self centre or let go the car veers sharply to the left, and although not a lot of force is required to straighten up it is not as it should be. Tyres ok, wheels ok, only thing is after a long hard drive the O/S hub cap (small one) is warm while N/S is not. Car is P reg Cossie. Second is bonnet catch seems to be releasing the bonnet onto second catch. This is even though when slammed shut it is secure, cable is intact as you can open bonnet in normal fashion but seems slack.
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Bob
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Highlander
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Re: Problems come in two's
« Reply #1 on: Jun 19th, 2007, 7:56am » |
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Unusual, If the hot hub had been on the other side i'd have said the brakes were binding. Possibly wishbone bushes but hat wouldnt account for the heat in the hub The catch that secures the bonnet sometimes siezes up, try a bit of WD40 and work the lever back and forwards
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up ! Too much for an old boy! |
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Chieftain
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Mechanically Challenged with a 24V Cosworth
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Re: Problems come in two's
« Reply #2 on: Jun 19th, 2007, 8:08am » |
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Probably not very clear but not so much the actual hub rather the cover that goes over the road wheel nuts, it is warm to touch while other is cool. Is there good way to check if it is the brakes binding? that seems to make sense with the way the car pulls over, seems to much for tracking.
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Bob
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Highlander
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Re: Problems come in two's
« Reply #3 on: Jun 19th, 2007, 9:06am » |
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Jack the car up and spin the wheel, you should feel it if its sticking. The heat in the cover must be coming from either the brakes or the hub though
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up ! Too much for an old boy! |
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Chieftain
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Mechanically Challenged with a 24V Cosworth
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Re: Problems come in two's
« Reply #4 on: Jun 20th, 2007, 2:31pm » |
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wel just checked all today and brakes and bushes seem ok. what has happended though is the inside edges of both front tyres are worn smooth with the nearside down to the wire, these were ok but would have been renewed later on this year. Help
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taliban aka Cheekyboy2
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Re: Problems come in two's
« Reply #5 on: Jun 20th, 2007, 2:53pm » |
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for safety's sake check for free play in the wheel, i.e. bearings. i've just had a new hub n bearings put on my rear o/s wheel, i did a trip to wales, noticed some squeling n screeching, had a quick peer through the wheel at the pads and noticed they were down to metal. on the way back the scorp started to, well, drift here and there, i changed the pads when i got home and noticed the wheel had nearly 2 inches of play! due to lack of time i took it to my local garage, he's kept the old hub as a souvineer, he's never seen one that badly damaged still on a car! as for the bearings, they were not found, not even bits of them! the bill was a couple of hundred, but cheap compared to my life i spose.....
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Chieftain
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Re: Problems come in two's
« Reply #6 on: Jun 20th, 2007, 4:36pm » |
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Thanks for the tip. when I checked it all out I checked for rim rock and that felt fine, so hoping it is tracking even though it is 2 new tyres.
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Bob
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Rod
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Re: Problems come in two's
« Reply #7 on: Jun 21st, 2007, 12:55pm » |
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Hi Chieftain I had a similar steering 'wander' on my 2.9 12v about 6 weeks ago and was horrified - as I am sure you were - when I discovered my otherwise good front tyres down to the metal on the inner lips. Had new tyres fitted but Tyreman pointed out a wobble in what he assumed was the ball joint and as a result he could not do the tracking. Took the car to Garageman who found that the steering rack was u/s - he used another word actually. Sorry to suggest even further expense - but it would be a good idea to check the rack as well as everything else. Rod
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I don't believe it!!
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mindofitsown
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Re: Problems come in two's
« Reply #8 on: Jun 21st, 2007, 3:09pm » |
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Unlike some of the guys on this forum I'm no expert but the description of your tyres would suggest that the tracking is seriously mis-aligned and your symptom is one of too much toe-out. The scorpios being rear wheel drive require the front wheels to be set as toed-in to overcome the gyroscopic effects at speed whereas front wheel drive cars require toe-out setting for the same reason but opposing effect. In over 20 years of searching for a good garage that understands the difference between toe-in and toe-out and 'degrees' versus 'mm' I have only found one and stick to it rigidly. I know of a guy who's rear wheel drive Chrysler is off the road because he can't afford new front tyres and his had worn to the metal (inside portion) in less than 15000 miles. I had a quick look at it and could tell from the front that both wheels were tracked as toe-out (so much so that you can see it easily by eye) and should be toed-in!! No wonder. I'm afraid that many garages simply don't know what they are doing and this guy is seeking finacial compensation. The warmth felt on one wheel may be the result of the heat build up in the tyre from excessive surface friction due to the tracking error. On a long dry run the heat can be transmitted through the tyre wall and metal wheels to the centre and can give the impression of brake-binding or bearing problem. Note however that the bearings are taking the strain of the excessive friction mentioned earlier and thus will run warmer than usual as a result, adding albeit slightly to the heat build up. Another point is the balance valve within power steering racks (I'm not sure if the scorpio has this conventional arrangement as I've never looked) but you can check if the balance is correct by putting the steering wheel at dead centre and then without touching the steering wheel start the engine. If the steering wheel moves on its own its very likely to be the balance valve setting or the rack is worn on one side. In days gone by, balance was adjustable on the outside of racks but I'm not sure if the scorpio has this arrangement. If you find the steering wheel does move on its own slightly, you should note that this effect is vastly magnified when the vehicle is at speed (for the same reason that steering is lighter during vehicle forward movement than if stationary). You can simulate the effect by doing the experiment again but this time putting the of the car on axle stands to lift the front wheels off the ground. BTW, I would suggest the dodgy bonnet catch is your priority. Regards, let us know how you get on.
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Highlander
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Re: Problems come in two's
« Reply #9 on: Jun 21st, 2007, 6:46pm » |
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Certainly sounds like tracking or something worn on the rack if its not the wishbone bushes
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up ! Too much for an old boy! |
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Jonnycab
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Re: Problems come in two's
« Reply #10 on: Jun 23rd, 2007, 12:27am » |
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I'd agree with Taliban (cheekyboy2... ) about a probable bearing problem Everytime I've had a bearing go, the early indications were a hot wheel centre. I've only had rear bearings go, but I would imagine a front bearing that is dry/worn would make the car pull to one side as it starts to stiffen up with the heat build up
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Re: Problems come in two's
« Reply #11 on: Jun 23rd, 2007, 12:59am » |
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The tracking would need to be out a serious amount of toe-out to produce tyre wear like that, the tyres would squeal like Steve McQueen's Mustang in Bullitt just pootling round Asda's car park and the steering would need arms of steel to turn it My leetel grey cells suspect that extreme Negative camber is the chief suspect.
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Jonnycab
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Re: Problems come in two's
« Reply #12 on: Jun 23rd, 2007, 1:31am » |
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Surely an extreme negative camber on one the front wheels would be noticed just by looking at it ? I think I may have read this wrong to start with...so the bearing theory may be wrong ....but just to confirm.....it's pulling to the left, but it's the drivers side wheel centre that is getting hot ?
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Chieftain
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Re: Problems come in two's
« Reply #13 on: Jun 23rd, 2007, 12:08pm » |
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To confirm it pulls to the left, no rim rock so bearings should be ok, it is the wheel nut cover that is only just warm to the touch, compared the n/s which is cool. No tyre squeal buy drove from Gloucester to N Wales and that is what did the tyres. Mechanic checking it today so will let you know his views.
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Re: Problems come in two's
« Reply #14 on: Jun 23rd, 2007, 12:56pm » |
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hi there can you tell us what wheels your car has. 15" teardrop or 16" 12 spokes?
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Chieftain
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Re: Problems come in two's
« Reply #15 on: Jun 23rd, 2007, 1:02pm » |
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16/12
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Re: Problems come in two's
« Reply #16 on: Jun 23rd, 2007, 1:30pm » |
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hi there that sheds some more light on it. for the cap on the 16" to get warm, the hub must be very warm. i'd get the wheel off and have a look at the brakes, etc as has been pointed out. the tyre issue i'd look at the wishbone balljoints, but i'd make sure there's nothing wrong with the brake/hub first because of the cost of new wishbones.
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Chieftain
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Re: Problems come in two's
« Reply #17 on: Jun 23rd, 2007, 1:47pm » |
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Done that brakes ok
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Re: Problems come in two's
« Reply #18 on: Jun 23rd, 2007, 10:30pm » |
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Can only be the wheel bearing then, when you checkied it did you jack the wheel off the ground?
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up ! Too much for an old boy! |
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Chieftain
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Re: Problems come in two's
« Reply #19 on: Jun 24th, 2007, 9:23am » |
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Wheels off ground for checking rim rock. If it is bearings what do you think about changing the whole hub complete if possible to obtain a good known second hand one rather than do the bearins. Or are they easier than it looks and sounds. IF it stops raining I am going to slowly check it all out again today and see if i can finalise what is wrong. But as always thanks all for input, it does give a start line to work from
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