Guest ntc Posted December 11, 2016 Report Share Posted December 11, 2016 If you can not jack the car up as per mot and things do not clear as stated you have a problem, ie chassis issues bent turret etc,when setting up you should start with 3 shims and adjust as needed. Quote Link to post Share on other sites
Waldi Posted December 12, 2016 Report Share Posted December 12, 2016 Additional thought: I converted to poly bushes during this restauration. They do no longer act as a torsion spring, so no resistance to the spring force. The spring wants to expand to it's uncompressed lenght until stopped by either a counterforce or mechanical stop, like the rubber buffer on the rear suspension. Big healeys, with very similar front suspension design, have rubber stops on the front suspension below the upper arms for this purpose. Only change I made are the polybushes, but to be honest, I did not specifically look for this issue before dismantling. Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 (edited) Yes Peter, lock stops are in....I have another theory...watch this space, will report back later today..Its possible we have all been barking up the wrong tree! Edited December 12, 2016 by Richard Young Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 At last I have found the cause.....This morning while thinking about it,I came to the conclusion that it must be the shocker that governs the end travel of the droop.It would make sense really as there would be some cushoning if the suspension went to full travel..i.e over hump back bridge when the suspension becomes unloaded. Anyway I have taken out the shocker (new standard one from Rimmers part GSA272) and measured it against original at full extension and the new one is 1 1/4" longer! So making the suspension drop too far and causing trunnion to touch etc.. I have just put original shock in and tightened up top nut and the suspension began to raise a little and all is fine.Nothing touches anywhere as it did before.Also I could not turn the stub axle at all but now it does. Another example of problems with new part compatability.Will need to get on to Rimmers as these new shocks are arguably potentially dangerous.So frustrating that I have spent 2 days on this issue and it is all to do with 'new' parts not being correct. Baaaaaahhh! Thanks to all for your input..really appreciated. Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 (edited) Hi everyone, (TR6 restoration cont....) Just building up the front suspension with all new bits...I have an issue with bottom trunnions.(See pic)..Having fitted new springs/shocks etc..with the suspension hanging,the trunnion stop bolt is hard up against the spring pan and jamming any steering movement.This can't be normal surely unless fitting the anti roll bar and rack lifts the suspension so that the trunnion is free but I have my doubts..before I continue I need some advice..thanks in advance. Richard. Edited December 12, 2016 by Richard Young Quote Link to post Share on other sites
RogerH Posted December 12, 2016 Report Share Posted December 12, 2016 Hi Richard, earlier I questioned the length of the springs. I think I was thinking of dampers - I wish I had mentioned that. After contacting Rimmers you have the option of raising a PQI form. Roger Quote Link to post Share on other sites
Peter Cobbold Posted December 12, 2016 Report Share Posted December 12, 2016 (edited) At last I have found the cause.....This morning while thinking about it,I came to the conclusion that it must be the shocker that governs the end travel of the droop.It would make sense really as there would be some cushoning if the suspension went to full travel..i.e over hump back bridge when the suspension becomes unloaded. Anyway I have taken out the shocker (new standard one from Rimmers part GSA272) and measured it against original at full extension and the new one is 1 1/4" longer! So making the suspension drop too far and causing trunnion to touch etc.. I have just put original shock in and tightened up top nut and the suspension began to raise a little and all is fine.Nothing touches anywhere as it did before.Also I could not turn the stub axle at all but now it does. Another example of problems with new part compatability.Will need to get on to Rimmers as these new shocks are arguably potentially dangerous.So frustrating that I have spent 2 days on this issue and it is all to do with 'new' parts not being correct. Baaaaaahhh! Thanks to all for your input..really appreciated. Richard, Glad to hear its resolved. Lets hope other 6-ers who have fitted incorrect shockers pick up on this. Otherwise their landing after a hump back bridge might be more exciting than they anticpated. There was a report recently of chassis cracking around the top w/b bracket. Here: http://www.tr-register.co.uk/forums/index.php?/topic/56894-front-chassis-damage/ If the shockers allowed too much droop that might be the cause. Did you notice if the top w/bones were going solid against the chassis? Peter Edited December 12, 2016 by Peter Cobbold Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 (edited) Hi Peter, The top ball joint housing was 'just' touching the top of the spring turret.It was the trunnion that was acting 'fully' as a bottom stop. Have emailed Rimmers to see what they say. Will report back. R. Edited December 12, 2016 by Richard Young Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 Hi Richard, earlier I questioned the length of the springs. I think I was thinking of dampers - I wish I had mentioned that. After contacting Rimmers you have the option of raising a PQI form. Roger Thanks Roger..have contacted Rimmers..awaiting reply. Quote Link to post Share on other sites
Waldi Posted December 12, 2016 Report Share Posted December 12, 2016 Richard, Thank you! My new shock absorbers are also some 30 mm longer than the old ones, when fully extended (300 vs 330 mm), but I could not find an original dimension in the BB (Dutch version). rge new items are stamped with S-600772. MP11 13 B 10 2. I bought them recently from TR shop, will contact them. Regards, Waldi Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 Yes Waldi, Mine are the same as yours...S-600772 MP11 13B 10 2. Still waiting for reply from Rimmers. Regards Richard. Quote Link to post Share on other sites
Guest ntc Posted December 12, 2016 Report Share Posted December 12, 2016 Same old story one fits all tis why I out source have done for years. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted December 12, 2016 Report Share Posted December 12, 2016 Same old story one fits all tis why I out source have done for years. Off Topic Here is a pair of Armstrong for TR4A-6 cars http://www.ebay.com/itm/NOS-Armstrong-Front-Shock-Pair-62-1395-Triumph-TR250-TR6-/221365406952 and here is a set for TR2-4 http://www.ebay.com/itm/Triumph-TR2-TR3-TR3A-TR4-New-Armstrong-Front-Shocks-QTY-2-62-2080-/351897207754 This is hoping theye are actually Armstrong 62-1395 and 62-2080 Peter W Quote Link to post Share on other sites
rog1 Posted December 12, 2016 Report Share Posted December 12, 2016 Hi, just checked the part numbers on my new standard shocks (only fitted 1 so far). S-600772 MP 07 13 B 11 2. if that helps?? They are the same extended length as the old armstrongs that I've removed. Regards Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 Off Topic Here is a pair of Armstrong for TR4A-6 cars http://www.ebay.com/itm/NOS-Armstrong-Front-Shock-Pair-62-1395-Triumph-TR250-TR6-/221365406952 and here is a set for TR2-4 http://www.ebay.com/itm/Triumph-TR2-TR3-TR3A-TR4-New-Armstrong-Front-Shocks-QTY-2-62-2080-/351897207754 This is hoping theye are actually Armstrong 62-1395 and 62-2080 Peter W Annoying thing is I didnt buy these from ebay..they were from a supposedly reputable company specialising in these cars. Quote Link to post Share on other sites
Richard Young Posted December 12, 2016 Author Report Share Posted December 12, 2016 Hi, just checked the part numbers on my new standard shocks (only fitted 1 so far). S-600772 MP 07 13 B 11 2. if that helps?? They are the same extended length as the old armstrongs that I've removed. Regards Thats really helpful Rog1.Your numbers are slightly differant which might mean the differance between them being correct in length or not as is the case with mine...Where did you source them and when? Quote Link to post Share on other sites
rog1 Posted December 12, 2016 Report Share Posted December 12, 2016 Have sent you a PM. Quote Link to post Share on other sites
Dennis Devon Group Posted December 13, 2016 Report Share Posted December 13, 2016 I understud that the TR4 trunion was the same to look at but is a zero deg one. The 4A, 5, & 6, have a 3 deg trunion and if the wrong one is fitted To either rang the steering geometry is incorrect. This is how I understand it, please correct me if I am incorrect in my understanding? Dennis Quote Link to post Share on other sites
Richard Young Posted December 13, 2016 Author Report Share Posted December 13, 2016 Not sure Dennis..maybe another member can help Regards Richard. Quote Link to post Share on other sites
Richard Young Posted December 13, 2016 Author Report Share Posted December 13, 2016 UPDATE. Have just heard from Rimmers...They need to know if the anti roll bar is fitted as they say it will make a dfferance to the hanging travel...interesting as I have not fitted the anti roll bar yet.I will fit it tomorrow and see whether they are correct. Richard. Quote Link to post Share on other sites
RogerH Posted December 13, 2016 Report Share Posted December 13, 2016 The TR4 trunnion is very different from the 4A/5/6. You would have TRouble fitting it. Roger Quote Link to post Share on other sites
Waldi Posted December 13, 2016 Report Share Posted December 13, 2016 Richard, I have my ARB fitted, it did not lift rhe wishbones or just a tiny bit at the most, the trunnion is stil contacting the springpan. Am awaiting response from my supplier, will share outcome. Waldi Quote Link to post Share on other sites
Richard Young Posted December 13, 2016 Author Report Share Posted December 13, 2016 Hi Waldi, The plot thickens! I can't really see how the ARB would lift the suspension up,the fact is the new shocks are longer than the originals in extended mode and the original ones do solve the problem. Quote Link to post Share on other sites
Waldi Posted December 13, 2016 Report Share Posted December 13, 2016 Hi Richard, I agree, and am glad you discovered the root cause of this potentially dangerous issue; Roger, Since 2 suppliers sell these shocks, there may be more. Is there a process to inform them, besides hoping they all read this forum? Once I have feedback from the supplier, should I make a PQI? I hope you can point me in the right direction. Thanks, Waldi Quote Link to post Share on other sites
RogerH Posted December 13, 2016 Report Share Posted December 13, 2016 Hi Waldi, I see that you are in Holland. If you fill in a PQI form then we may have a problem following it up, However if you bought them in the UK then fill in the form and we will leap into action. Roger Quote Link to post Share on other sites
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