Terry Field Posted May 17, 2017 Report Share Posted May 17, 2017 I bought a load of parts from James Paddock to overhaul the rear brakes. One of the parts was the brake shoe hold down pin and retaining spring. This is the first time I have come across this design ( I guess the old hands on here are more than familiar with it), but it seems to me that, while the spring holds the head of the pin under tension, what is there to prevent the pin or the spring revolving within the drum, allowing the pin to drop through the slot in the spring? I've attached a picture in case it helps. The pin on the left is the new one. The one on the right was on the original brake shoe; it is clearly a 'wrong 'un' because the hole in the brake shoe had been enlarged to allow the bulbous head to pass through, but at least once the head was engaged in the spring it could not pop out. Any thoughts from the wise old heads? Terry Quote Link to post Share on other sites
barkerwilliams Posted May 17, 2017 Report Share Posted May 17, 2017 (edited) My tr6 has those and they work well. The clip part sits in a groove and the sprung plate would need to compress to let them drop out. They do not rotate once fitted. I think that "correctly" the clips are fitted in the direction of forward rotation, so one is pointing up and one down. Alan Edited May 17, 2017 by barkerwilliams Quote Link to post Share on other sites
DaveN Posted May 17, 2017 Report Share Posted May 17, 2017 They are tight enough to not rotate. The shape of the spring clip keeps the pin firmly at the bottom, it would have to ride up the sides and compress the clip more in order to fall apart. They are just fine used on countess cars of that era. Dave Quote Link to post Share on other sites
RogerH Posted May 17, 2017 Report Share Posted May 17, 2017 Hi Terry, have you taken a working one apart. ? They really are a devil and no way will they drop out. Roger Quote Link to post Share on other sites
heckler Posted May 17, 2017 Report Share Posted May 17, 2017 Check like for like if buying pin & spring clip . Purchased some from one of our well known suppliers , pins longer tension of clip less ( possibly weaker as well ) . One came apart completely ,second one starting to turn . Put old ones back . Poor response from supplier when mentioned at International . Chris Quote Link to post Share on other sites
Z320 Posted May 18, 2017 Report Share Posted May 18, 2017 Check the spring: is it made of spring steel or cheap zinc coated tin plate. I still use the old ones. Ciao Marco Quote Link to post Share on other sites
peejay4A Posted May 18, 2017 Report Share Posted May 18, 2017 They do drop out. But rarely. I know of only one occurrence evidenced by a rhythmic squeak from one side. Quote Link to post Share on other sites
RogerH Posted May 18, 2017 Report Share Posted May 18, 2017 evidenced by a rhythmic squeak from one side. Hi Pete, I have the same noise; but I forgive her because she is handy at wiping the screen when it mists up. Roger Quote Link to post Share on other sites
simonjrwinter Posted May 18, 2017 Report Share Posted May 18, 2017 Hi Pete, I have the same noise; but I forgive her because she is handy at wiping the screen when it mists up. Roger Brave man..... Quote Link to post Share on other sites
jean Posted May 19, 2017 Report Share Posted May 19, 2017 The springs and pins on the brakes of my TR6 are still the same, fitted in 1970, still in good condition, must be old school quality.. look the same as the one in the picture on the left, Quote Link to post Share on other sites
Terry Field Posted May 21, 2017 Author Report Share Posted May 21, 2017 Thanks Chaps. If anything starts to squeak, I'll look to Roger for further advice Terry Quote Link to post Share on other sites
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