Paul Garvey Posted September 1, 2023 Report Share Posted September 1, 2023 The car has developed a tapping/clunk on cylinder 1. Rocker gap is perfect on all cylinders so all rockers are not contributing to this noise. The clunk is in time the the rocker in question on cylinder 1. I suspect it may be the CAM follower tappet, can this be replaced by just taking the head off. Any other suggestions of what is causing the clunk is very welcome Quote Link to post Share on other sites
RogerH Posted September 1, 2023 Report Share Posted September 1, 2023 Hi Paul, if you have localised it to #1 then the cam lobe/follower looks likely. Head off and you can get the follower out. And then you can look down and see the cam lobe. Good luck Roger Quote Link to post Share on other sites
Lebro Posted September 1, 2023 Report Share Posted September 1, 2023 Yes, head off, fish out the cam follower with a dowel ( I used some 15mm copper pipe, with the end flattened just enough to grip the insides of the follower) . Bob Quote Link to post Share on other sites
RogerH Posted September 1, 2023 Report Share Posted September 1, 2023 Broom handle, whittled down for snug fit.................. Roger Quote Link to post Share on other sites
Z320 Posted September 1, 2023 Report Share Posted September 1, 2023 (edited) Hi Paul, sadly your rocker gap on cylinder 1 maybe is poor apart you are convinced different. Because the top of the valves dig a pit in the rockers, which you „bridge“ with the feeler gauge. Feeler gauge out ——> play is massive! What I did years ago after an adjustment is to check by rocking them by hand how they sound and how much play each rocker has. I found them all different - but one had only few play / sound: this is the best! All other I adjusted to the play and sound and still do it this way. And that works LOVELY! Tic, tic, tic gone! Ciao, Marco Edited September 1, 2023 by Z320 Quote Link to post Share on other sites
james christie Posted September 1, 2023 Report Share Posted September 1, 2023 I've had this problem for several years now, a TR man who knows much more about thse things than I just looked at me and said what do you expect it's a TR. james Quote Link to post Share on other sites
Z320 Posted September 2, 2023 Report Share Posted September 2, 2023 (edited) Some time ago we discussed the noise is also less with solid spacers and shims instead the springs between the rockers? But I don’t know how to find this thread again. I try via Google, this works best IMO Ciao, Marco edit: did found it, but this thread doesn’t help Edited September 2, 2023 by Z320 Quote Link to post Share on other sites
Michel Higuet Posted September 6, 2023 Report Share Posted September 6, 2023 On 9/1/2023 at 7:01 PM, Paul Garvey said: The car has developed a tapping/clunk on cylinder 1. Rocker gap is perfect on all cylinders so all rockers are not contributing to this noise. The clunk is in time the the rocker in question on cylinder 1. I suspect it may be the CAM follower tappet, can this be replaced by just taking the head off. Any other suggestions of what is causing the clunk is very welcome If the rocker gap is perfect on all cylinders you can't have a tapping logically, Clunk on Cylinder 1 both rockers? Earing with a long screwdrivers on both do you ear a difference? Could a valve spring problem? Maybe more investigate before removing the head? Just saying I am not an expert. Quote Link to post Share on other sites
BlueTR3A-5EKT Posted September 6, 2023 Report Share Posted September 6, 2023 Loose ball end in one of the push rods? Quote Link to post Share on other sites
Paul Garvey Posted September 6, 2023 Author Report Share Posted September 6, 2023 On 9/1/2023 at 6:01 PM, Paul Garvey said: The car has developed a tapping/clunk on cylinder 1. Rocker gap is perfect on all cylinders so all rockers are not contributing to this noise. The clunk is in time the the rocker in question on cylinder 1. I suspect it may be the CAM follower tappet, can this be replaced by just taking the head off. Any other suggestions of what is causing the clunk is very welcome Steve Denton, some of you will know, listened to it and he advised the head off. He said not to worry too much as these tractor engines can cope with it. Though he did advise taking the head off this winter Quote Link to post Share on other sites
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