Prospect Posted January 21, 2015 Report Share Posted January 21, 2015 Good Evening Gentlemen, I have slight movement on the steering wheel, 1/2 inch measured at the boss. Doesn't affect driving but am concerned about MOT (Do know as it is a 1956 car not legally required)due later in the year. I have fitted a Revington Top Plate but this has made no difference. There is no up and down movement at the steering wheel which I take it means it is correctly shimmed. New drop links have been installed and there is no slack in any of the rest of the steering gear. Questions are:- Is 1/2 inch relatively normal or does it indicate a very tired worm. Second question what is the experience of what degree of play at the wheel is acceptable to MOT examiners. Any thoughts or advice gratefully received. Tony Quote Link to post Share on other sites
stuart Posted January 21, 2015 Report Share Posted January 21, 2015 Did you renew the pin in the Pitman arm ? (or turn it 90 degrees) as this will recover a lot of lost motion, have you replaced the inner pin and bush on each end of the centre tie rod with the Delrin version? 1/2" at the wheel is if you have a sensible MOT inspector who understands old cars usually acceptable. Stuart. Quote Link to post Share on other sites
Lebro Posted January 22, 2015 Report Share Posted January 22, 2015 I have found in the past that one of the main causes of excess play in steering is caused by wear in the bush which supports the output shaft, causing the shaft to "wobble" very slightly. A "wobble" of a few thou' can cause a surprising amount of lost movement at the steering wheel. Bob. Quote Link to post Share on other sites
Prospect Posted January 22, 2015 Author Report Share Posted January 22, 2015 Hi Stuart Many thanks for your reply. No I have not replaced the pin in the Pitman Arm or turned the arm through 90 degrees. Will try this but question will I need a Pitman Arm puller or will a three legged puller be sufficient? I have replaced both pins each end of the centre tie rod a few weeks ago as they were worn. Tony Quote Link to post Share on other sites
stuart Posted January 22, 2015 Report Share Posted January 22, 2015 You will need a good two legged puller to get the drop arm off to raise the Pitman arm up enough to change or rotate the pin.I have a factory puller but I suspect Im quite a way from you. Stuart. Quote Link to post Share on other sites
Rodbr Posted January 22, 2015 Report Share Posted January 22, 2015 Tony thr part referred to 1s part 41 http://www.moss-europe.co.uk/shop-by-model/triumph/tr2-4a/steering-suspension/steering/steering-box-column-wheel-tr2-3a.html It is the pin that needs to be turned not the arm for the avoidance of confusion. Rgds Rod Quote Link to post Share on other sites
Prospect Posted January 23, 2015 Author Report Share Posted January 23, 2015 Thank you Stuart and Rod, Stuart you are a right I am in West Sussex about 250 miles from you!! May sound a stupid question but I assume there is no way to rotate or replace the pin without taking the steering box out of the car with all that entails or is there another way? Quote Link to post Share on other sites
Rodbr Posted January 23, 2015 Report Share Posted January 23, 2015 (edited) Hi Tony, 'Fraid not. The arm is enclosed inside the steering box. If yours is as bad as mine it took a 10 ton press to free the steering arm from the Pitman arm. This must be removed to get at the pin. Check out the picture again in the link http://www.moss-europe.co.uk/shop-by-model/triumph/tr2-4a/steering-suspension/steering/steering-box-column-wheel-tr2-3a.html The Arm part 46 held by part 48 these must be removed to allow the Pitman Arm and pin to unmesh from the steering worm. So you see it's a bit like a hook. I have never tried so dom't know if there is clearance to get a puller on the lower drop arm lever as it is splined on and very tight Edited January 23, 2015 by Rodbr Quote Link to post Share on other sites
Guest ntc Posted January 23, 2015 Report Share Posted January 23, 2015 I would hire Stuarts tool it is the only way. Quote Link to post Share on other sites
Prospect Posted January 24, 2015 Author Report Share Posted January 24, 2015 Many thanks for all the thoughts and advice. Sadly I have come to the conclusion sorting it out is beyond my engineering skills and the tools I have at my disposal or can beg/borrow locally. So I guess it is back to the TR specialist and resort to the bank account. A bit sad as my TR4A is also currently having away having an engine rebuild to fast road specification for this years historic rallies so guess no TRing for a while. Tony Quote Link to post Share on other sites
Nigel Lay Posted January 24, 2015 Report Share Posted January 24, 2015 Hang on Tony, section 2.2 of MOT testers manual allows 75mm of play (3") at the rim for motorcars with non rack & pinion steering. Suggest it may well be within limits. Nigel (ex TS952, now something uniquely French!) Quote Link to post Share on other sites
Kiwifrog Posted January 25, 2015 Report Share Posted January 25, 2015 Any pictures of the DS Nigel ? Quote Link to post Share on other sites
Nigel Lay Posted January 26, 2015 Report Share Posted January 26, 2015 Collecting it up next week Alan, will send some pics. Nigel Quote Link to post Share on other sites
stuart Posted January 26, 2015 Report Share Posted January 26, 2015 (edited) If you dont mind a long day`s run bring the box down and we will pull the arm off while you wait. Stuart. Edited January 26, 2015 by stuart Quote Link to post Share on other sites
Alec Pringle Posted January 26, 2015 Report Share Posted January 26, 2015 Come on Stuart, there's no need to get that heavy . . . . the man may prefer pulling out his wallet to losing an arm ? Cheers Alec Quote Link to post Share on other sites
Kiwifrog Posted January 27, 2015 Report Share Posted January 27, 2015 Come on Stuart, there's no need to get that heavy . . . . the man may prefer pulling out his wallet to losing an arm ? Cheers Alec :lol: Quote Link to post Share on other sites
Prospect Posted January 27, 2015 Author Report Share Posted January 27, 2015 Stuart, many thanks for your kind offer. Will give it some thought and may well take you up on it when I get the 4A running again. A long trip would be a good running in exercise for the rebuilt engine. Tony Quote Link to post Share on other sites
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