Jo Neyskens Posted December 3, 2019 Report Share Posted December 3, 2019 Since a while there is a noise when I am driving over a bump or a hole. With the front wheels there is no problem. The sound is only there when I ride over it with the rear wheels. Can it be the rear shock absorbers? The exhaust is also properly attached. If I push the back of the car (when it is standing still) there is nothing to be heard. Only when driving over a bump or hole. Does anyone have an idea what this could be? Quote Link to post Share on other sites
Chilliman Posted December 3, 2019 Report Share Posted December 3, 2019 A common occurence is the rear lever arm shock absorbers working lose - I'd start with them first, only two bolts on each & difficult to get to & torque up properly hence the problems Quote Link to post Share on other sites
Jo Neyskens Posted December 3, 2019 Author Report Share Posted December 3, 2019 54 minutes ago, Chilliman said: A common occurence is the rear lever arm shock absorbers working lose - I'd start with them first, only two bolts on each & difficult to get to & torque up properly hence the problems Ok, I will try it tomorrow. Thanks!! Quote Link to post Share on other sites
Lebro Posted December 3, 2019 Report Share Posted December 3, 2019 +1 Quote Link to post Share on other sites
Jo Neyskens Posted December 4, 2019 Author Report Share Posted December 4, 2019 9 hours ago, Lebro said: +1 ? Quote Link to post Share on other sites
Lebro Posted December 4, 2019 Report Share Posted December 4, 2019 +1 means I agree with John's suggestion. Bob Quote Link to post Share on other sites
Ben Freer Posted December 4, 2019 Report Share Posted December 4, 2019 Or the exhaust pipe? Quote Link to post Share on other sites
RobTR3 Posted December 4, 2019 Report Share Posted December 4, 2019 If your car is a TR4 with a solid axle, check the bump stops and their condition. Just changed mine (TR3), one was completely worn away and the other side displaced. You'll need to undo the four nuts securing the u-bolts and then jack up the axle to raise the axle off the chassis rail. Agree with comments on the lever arm bolts, difficult to undo and torque up again. Rob Quote Link to post Share on other sites
harrytr5 Posted December 4, 2019 Report Share Posted December 4, 2019 On lever arm I always fit longer set screws 2" and nyloc the back, then it is secure. Regards Harry TR5 Nutter Quote Link to post Share on other sites
stuart Posted December 4, 2019 Report Share Posted December 4, 2019 1 hour ago, harrytr5 said: On lever arm I always fit longer set screws 2" and nyloc the back, then it is secure. Regards Harry TR5 Nutter Yep works for me too on IRS cars as often the thread in the mounting plate has been stretched previously. Stuart. Quote Link to post Share on other sites
Lebro Posted December 4, 2019 Report Share Posted December 4, 2019 (edited) Also helps to use cap head bolts as you can't get a normal socket on the hex heads. Bob Edited December 4, 2019 by Lebro Quote Link to post Share on other sites
stuart Posted December 4, 2019 Report Share Posted December 4, 2019 2 hours ago, Lebro said: Also helps to use cap head bolts as you can't get a normal socket on the hex heads. Bob You can on an IRS chassis mounted shock. Stuart. Quote Link to post Share on other sites
RdeJ Posted December 6, 2019 Report Share Posted December 6, 2019 Had a knocking sound at the rear at one side while driving over bumbs. It appeared the bolds from the strap keeping the axle and leaf spring together had come slightly loose. Item 24 in the Moss cataloque https://www.moss-europe.co.uk/shop-by-model/triumph/tr2-4a/steering-suspension/rear-suspension/rear-suspension-tr2-4-1953-65.html Replaced with nylocs. Robert Quote Link to post Share on other sites
AndyR100 Posted December 6, 2019 Report Share Posted December 6, 2019 Mine was loose shocks ...... Andy Quote Link to post Share on other sites
TorontoTim Posted December 6, 2019 Report Share Posted December 6, 2019 I've had clonks from loose shocks and also from (very) worn-out drop links from damper arm to spring plate. Worth looking at all the parts back there that move when the wheels bounce, but there's a clear common topic of loose damper bolts. Quote Link to post Share on other sites
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