guy.eggermont Posted November 20, 2020 Report Share Posted November 20, 2020 My TR6 (P.I. engine) has a slight sewing machine noise which disturbs me, since 10 years. Valves are adjusted, and timing chain is fine. What else could it be? Rod bearing? Thanks for your advise, Guy Quote Link to post Share on other sites
colin3511 Posted November 20, 2020 Report Share Posted November 20, 2020 Worn cam. Quote Link to post Share on other sites
ntc Posted November 20, 2020 Report Share Posted November 20, 2020 Remove fan belt and try it. Quote Link to post Share on other sites
CP26309 Posted November 24, 2020 Report Share Posted November 24, 2020 On 11/20/2020 at 3:49 PM, ntc said: Remove fan belt and try it. Yes, good idea it eliminates water pump and alternator bearing noises. Could try using a rubber hose as a stethoscope. Prepare for funny sounds! Quote Link to post Share on other sites
foster461 Posted November 25, 2020 Report Share Posted November 25, 2020 Grab the bottom pulley (big the one with the timing marks) and make sure there is no wear that is allowing it to rattle against the crank woodruff key. Stan Quote Link to post Share on other sites
John L Posted November 25, 2020 Report Share Posted November 25, 2020 Could it be the MU? John Quote Link to post Share on other sites
Peter Cobbold Posted November 25, 2020 Report Share Posted November 25, 2020 Possibly worn distributor or Metering Unit. Try to locate source with a stethoscope. Quote Link to post Share on other sites
Andy Moltu Posted November 25, 2020 Report Share Posted November 25, 2020 Did you say the noise has been present for 10 years? Quote Link to post Share on other sites
Phil Read Posted November 27, 2020 Report Share Posted November 27, 2020 If thhe sound of a sewing machine is all you hear it must be a good engine. Quote Link to post Share on other sites
Casar66 Posted November 27, 2020 Report Share Posted November 27, 2020 Is the noise gone when you pull the choke? Quote Link to post Share on other sites
Topoff Posted November 29, 2020 Report Share Posted November 29, 2020 I had an old Rootes model that made that sound, I think it was a Singer..... Quote Link to post Share on other sites
Peter Cobbold Posted November 30, 2020 Report Share Posted November 30, 2020 20 hours ago, Topoff said: I had an old Rootes model that made that sound, I think it was a Singer..... Before I lose the thread, recall that the TR has lost most of the Singer's parts, except for the shuttle. Quote Link to post Share on other sites
Andy Moltu Posted December 1, 2020 Report Share Posted December 1, 2020 You might be hearing the sound of the metering unit itself. Quote Link to post Share on other sites
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