boxofbits Posted September 1, 2014 Report Share Posted September 1, 2014 Hi My TR4a steering does self centre to some extent, but it is not great. For instance you cannot just allow it to feed back through your hands with ease, so I wondered what other owners cars are like so I can make some comparison? I note there is next to no castor adjustment to speak of, and there is no stiffness in the rack, column or ball joints, and tyres are good. I also need to carry out realignment of the rear tracking, which I would guess is around 1/8" toe in? Anyone have a good method for doing this without expensive electronic or tracking kit? Comments appreciated. Kevin Quote Link to post Share on other sites
LGFromage Posted September 1, 2014 Report Share Posted September 1, 2014 It is probably best to get a full wheel alignment at a shop with Hawkeye equipment but do remember to take a supply of front and rear shims. You get an excellent result with minimum hassle. Tim Quote Link to post Share on other sites
boxofbits Posted September 1, 2014 Author Report Share Posted September 1, 2014 Thanks Tim I may well go down this route as IRS is not as straightforward as a live axle. Quote Link to post Share on other sites
peejay4A Posted September 2, 2014 Report Share Posted September 2, 2014 (edited) I never had much self centring on my 6 and it's the same with the 4A. Negative camber at the front will take away some self centring and that's what I put it down to as I have 1 degree negative at the front and that's how I had the 6 set up. Straight ahead stability is pretty good as is cornering so I can live with winding the wheel back. And it's been 4 wheel aligned. Edited September 2, 2014 by peejay4A Quote Link to post Share on other sites
Peter Cobbold Posted September 2, 2014 Report Share Posted September 2, 2014 Hi My TR4a steering does self centre to some extent, but it is not great. For instance you cannot just allow it to feed back through your hands with ease, so I wondered what other owners cars are like so I can make some comparison? I note there is next to no castor adjustment to speak of, and there is no stiffness in the rack, column or ball joints, and tyres are good. I also need to carry out realignment of the rear tracking, which I would guess is around 1/8" toe in? Anyone have a good method for doing this without expensive electronic or tracking kit? Comments appreciated. Kevin Rear toe depends upon stiffness of the trailing arm bushes. I have Silentblocs so set them parallel. If 1/8" is standard for rubber bushes, then I'd guess 1/16th for polybushes. Keep asking! I align the rears at hub height with a horizontal straight edge aimed at the front tyres, allowing for difference if any in track ( ie width) front and rear. Use geometry to calculate the rear toe projected onto the front tyre, allowing for its toe too. Check at several wheel rotations in case tyre is distorted. Would use a laser level to replace straight edge if doing it again. Peter Quote Link to post Share on other sites
boxofbits Posted September 2, 2014 Author Report Share Posted September 2, 2014 Many thanks guys for all your replies. I shall have tape measures, straight edges, string, spirit levels and chalk at the ready this weekend. I'll let you know how I get on Quote Link to post Share on other sites
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