jocklow@aol.com Posted May 30, 2016 Report Share Posted May 30, 2016 Pursuing a clunky rattle noise, which is only noticeable as you float between power on and power off, I have removed and examined the propshaft. The U/J's seem ok and the sliding spline seems good. But I can turn the drive into the diff by,say, 10 degrees before the road wheel turns. On a P1800E Volvo that I have the play is minimal, say 1-2 degrees. Can anyone tell me what to expect on the TR? Before I get into taking off and replacing the back axle. Thanks . Quote Link to post Share on other sites
peter clarke Posted May 31, 2016 Report Share Posted May 31, 2016 Check for end float of the pinion shaft. If the bearing is on the way out the diff will make more noise on overrun. Quote Link to post Share on other sites
jocklow@aol.com Posted May 31, 2016 Author Report Share Posted May 31, 2016 There is no end float on the flange protruding from the diff case. When you turn the flange by hand you can feel an initial quite small amount of play and then a separate larger amount before all the slack is taken up. the first bit might be the spline on the flange but the second larger bit must be inside the diff. It feels the same whether you stope one wheel from turning or allow both to turn. Is this ok, or even if not ideal is it quite common in old cars ? Quote Link to post Share on other sites
peejay4A Posted June 1, 2016 Report Share Posted June 1, 2016 Wire wheels? Give the knock ons a good clout. Quote Link to post Share on other sites
Ian Vincent Posted June 3, 2016 Report Share Posted June 3, 2016 (edited) Planetary gears? Rgds Ian PS in the old days I would pumped a couple of guns of grease into it and carried on using it. Edited June 3, 2016 by Ian Vincent Quote Link to post Share on other sites
Graham Harris Posted June 3, 2016 Report Share Posted June 3, 2016 The pinion bearing should have a preload of 15 - 18 in.lbs after lightning the pinion nut to a torque of 85 - 100 lbs.ft. which is very tight and the preload means it needs a fair amount of pressure to get it to start turning. If it is easy to turn it could mean its a bit sloppy inside and could need new bearings. Graham Quote Link to post Share on other sites
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