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Re: [Mgs] How to "align" the steering wheel?

To: "Andrew B. Lundgren" <lundgren@byu.net>, <mgs@autox.team.net>
Subject: Re: [Mgs] How to "align" the steering wheel?
From: "PaulHunt73" <paulhunt73@virginmedia.com>
Date: Sat, 12 May 2012 09:23:32 +0100
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It depends what you mean by 'have to hold the wheel'. If you mean the car drifts to the left unless you manually turn the wheel to the right to compensate that is a difference in suspension alignment between the two sides. It's not toe as many think, with everything else equal that just causes both wheels to turn in or out by the same amount and the car still goes straight. It's primarily the castor angle that gives the self-centering action of car steering, and if one side has more caster than the other that wheel will tend to go straighter, pulling the other one across, so you drift to the side that has the straight wheel. Other suspension and rear axle alignment factors can also cause pulling to one side or the other.

But if you mean the car travels in a straight line on a flat and level road, but the steering wheel is off to the right, that is just the position of the wheel on the column splines, or the track-rods have been set up incorrectly, or both. The track rods should be set such that the wheels turn the same amount from straight ahead each side. The easiest way to check that is to mark the top centre of the wheel with tape when the car is going straight, then turn the wheel from lock to lock (easier with the front jacked up). Your mark should be at the same angle to the vertical each side on full lock, if it is more one side than the other then the track rods are out, so adjust both track rods by the same amount but in *opposite* directions (to keep the toe) to get the wheel angles the same. If the wheel turns more to the right, then you need to screw the right-hand track rod into the track-rod end (to pull that wheel in) and the left-hand out to get it balanced. Once you have that right now see where your wheel is pointing when you are going straight ahead, and adjust on the column splines accordingly. That is only a step-change of course, so may be off slightly one way on one spline and the other way on the next, so tweak the track rods again to get it spot-on. Then it would probably be best to get a tracking alignment done, making sure that they adjust both track rods by the same amount (but this time in the *same* directions) to keep the rack and wheel alignment.

Indicator cancelling is simply a matter of sliding the clip around the column until it is between the two switch fingers, pointing at the switch, with the wheel in the straight-ahead position. That is for the later collapsible and full energy absorbing columns at least. The earlier solid columns have a screwed peg in a fixed position so the column shaft has to be turned in the UJ (or the UJ on the rack shaft according to which has the bolt groove going all the way round the shaft) until the peg is at the right angle. The 77 and later wheels and switches are self-adjusting as the cancelling arrangement is on the wheel itself.

PaulH.

----- Original Message -----
As long as I have had the car, you have to hold the wheel at about 5 degrees to the right to go straight. I had the front end aligned a while back, and I don't think it is out.

My turn signal auto cancel is also impacted by the wheel not pointing straight when the car is going straight.
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