Phil H 4 Posted April 13 Report Share Posted April 13 I have just received some new brake pads from a reputable supplier for my 1972 CP TR6. The hole use 1/4" pins as opposed to 3/16" The new pads have an oval holes as opposed to round holes in the old pads, would this cause excessive movement ? I am replacing the pads along with anti squeal shims and non were fitted previously. The holes in the shims will not take the pins. I think the 3/16 ones have been supplied so will need to exchange or drill out ! The shins appear a strange shape, I think the brake piston will be half on and half off the shim. Do they look right ? Guidance on these matters always appreciated Phil. Quote Link to post Share on other sites
Nigel Triumph Posted April 13 Report Share Posted April 13 1972 was the year Triumph switched from imperial Type 16 calipers to metric, with the change in hole sizes. It causes confusion, as there's no exact commission number when the changeover occurred. Many have drilled out 3/16 holes to take a 1/4 inch retaining pin. The anti squeal shins are the same as fitted on my TR6. Nigel Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 13 Report Share Posted April 13 (edited) 1 hour ago, Phil H 4 said: I have just received some new brake pads from a reputable supplier for my 1972 CP TR6. The hole use 1/4" pins as opposed to 3/16" The new pads have an oval holes as opposed to round holes in the old pads, would this cause excessive movement ? I am replacing the pads along with anti squeal shims and non were fitted previously. The holes in the shims will not take the pins. I think the 3/16 ones have been supplied so will need to exchange or drill out ! The shins appear a strange shape, I think the brake piston will be half on and half off the shim. Do they look right ? Guidance on these matters always appreciated Phil. Fit the correct ones, don’t faf about drilling the calipers unless you are equipped to do so. The correct pads and shims are available for the later type with smaller pins also. Fitting the pads with 1/4” holes using 3/16” pins will make for noisey pads rattling in the caliper. Ask the specialist to supply what you actually require. Edited April 13 by BlueTR3A-5EKT Quote Link to post Share on other sites
Phil H 4 Posted April 13 Author Report Share Posted April 13 Thanks both. The pins are 1/4" and correct, I no intention of drilling the calliper , not necessary. Question is looking at the new pads, the holes in the pads are oval not round...quite a lot of movement with the 1/4" pins. ( The previous pads round holes ) are they correct. I gave all information inc commissioning No to Remington's. Second question regarding shims, Thanks Neil in confirming the appearance of the shims. Unfortunately holes will not take 1/4" pins which are correct for the callipers should I drill out shims or wait to exchange as I think 3/16" have been sent. Thanks Phil Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 13 Report Share Posted April 13 41 minutes ago, Phil H 4 said: Thanks both. The pins are 1/4" and correct, I no intention of drilling the calliper , not necessary. Question is looking at the new pads, the holes in the pads are oval not round...quite a lot of movement with the 1/4" pins. ( The previous pads round holes ) are they correct. I gave all information inc commissioning No to Remington's. Second question regarding shims, Thanks Neil in confirming the appearance of the shims. Unfortunately holes will not take 1/4" pins which are correct for the callipers should I drill out shims or wait to exchange as I think 3/16" have been sent. Thanks Phil Sorry wrong end of the stick. You could use brake pad anti rattle springs I got fed up with pad rattle and fitted them some 30 years ago. Would not be without them. They are nothing more than bits of shaped spring wire. Here is a view of how they fit and a NOS Girling pad fitting kit that included them Quote Link to post Share on other sites
stuart Posted April 13 Report Share Posted April 13 You need the correct pads with the right size holes to suit the smaller pins. Stuart. Quote Link to post Share on other sites
Phil H 4 Posted April 13 Author Report Share Posted April 13 Thanks Peter, I'll look into the springs. Hi Stuart, The pins are 1/4" correct for the callipers ( original not replaced ) so I don't understand , as I see it I don't need smaller pins. The question is will the pads I've been supplied with oval holes ( as picture ) rattle, ( 1/4 pins being used not the smaller 3/16 ) or due to the orientation of the pads will the pins hold secure as they will locate at the extremities of the holes. Probably best I'll delay fitting and speak to Revingtons on Monday. Thanks all for your input. Phil Quote Link to post Share on other sites
Phil H 4 Posted April 13 Author Report Share Posted April 13 Peter, Just taking a second look at your picture the holes in your pads look oval , perhaphs springs are the answer after all. Phil Quote Link to post Share on other sites
Z320 Posted April 13 Report Share Posted April 13 (edited) Hi, the stainless steel pads give more load on the running down side of the pad and less on the running on side. This is to reduce noise from the running on side and wear out on the running on side, which the pads tend to do when forced the same way over the full surface. Ciao, Marco Edited April 13 by Z320 Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 13 Report Share Posted April 13 (edited) Link to previous discussion 50 minutes ago, Phil H 4 said: Edited April 13 by BlueTR3A-5EKT Quote Link to post Share on other sites
stuart Posted April 13 Report Share Posted April 13 1 hour ago, Phil H 4 said: Thanks Peter, I'll look into the springs. Hi Stuart, The pins are 1/4" correct for the callipers ( original not replaced ) so I don't understand , as I see it I don't need smaller pins. Phil No you need the right pads for those pins. Stuart. Quote Link to post Share on other sites
Z320 Posted April 13 Report Share Posted April 13 (edited) Hi, ATE calipers (Germany) have a shoulder on the piston, this has to be turned in the correct position to have benefit of the less wear out effect. From the Porsche 911 manual: The ATE „Spreizfeder“ #9 looks like a „cross“, I try to translate them with „push apart spring“. I made them Girling suitable my own from spring steel. The holes in the pads more or less exactly suitable I don’t care, as long the pins fit to the calipers. Current the fit exactly because I had to drill the Mintex pads wider. The assembly works well this way. Ciao, Marco Edited April 14 by Z320 Quote Link to post Share on other sites
BlueTR3A-5EKT Posted April 13 Report Share Posted April 13 3 hours ago, Z320 said: Hi, ATE calipers (Germany) have a shoulder on the piston, this has to be turned in the correct position to have benefit of the less wear out effect. The ATE springs look like a cross“, called „push apart springs“, I made them Girling suitable my own from spring steel, The holes in the pads more or less exactly suitable I don’t care, as long the pins fit to the calipers. Current the fit exactly because I had to drill the Mintex pads wider. The assembly works well this way. Ciao, Marco That’s the photo I have been searching for. All done with a pop rivet and a bit of spring steel strapping Elegant solution. Quote Link to post Share on other sites
Z320 Posted April 13 Report Share Posted April 13 This thread Quote Link to post Share on other sites
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