stillp Posted July 23, 2019 Report Share Posted July 23, 2019 I wish I had a Bugatti... Quote Link to post Share on other sites
RogerH Posted July 23, 2019 Report Share Posted July 23, 2019 Quote Link to post Share on other sites
Z320 Posted July 23, 2019 Author Report Share Posted July 23, 2019 52 minutes ago, stillp said: I wish I had a Bugatti... THAT is the solution! Quote Link to post Share on other sites
Z320 Posted August 22, 2019 Author Report Share Posted August 22, 2019 (edited) Found this at ebay by accident Seems to need some work and parts to get it working on the car. What will it be worth in this condition? Edited August 22, 2019 by Z320 Quote Link to post Share on other sites
Z320 Posted August 24, 2019 Author Report Share Posted August 24, 2019 (edited) Ended with 92 GBP, the other one ended with 67 GBP.... What might one of our complete working unit be worth? With the parts we ordered to make them we sadly have one unit too much. edit 25.09.2019, sold today to a good friend who heard some rumors about our project Edited August 25, 2019 by Z320 Quote Link to post Share on other sites
Z320 Posted September 15, 2019 Author Report Share Posted September 15, 2019 (edited) This TR3 clutch I got borrowed from a friend for a closer look, weight is 7.3 kg On the fingers I realize where the release bearing touches them Origininal release bearing from a TR4A-TR6 Closer look Closer look on the Sachs release bearing - I guess this will not work. Sorry to all TR2-4 downers.... Edited September 15, 2019 by Z320 Quote Link to post Share on other sites
Hamish Posted September 15, 2019 Report Share Posted September 15, 2019 You can always have the TR3/4 flywheel drilled and tapped to accept the diaphragm clutch like this. Quote Link to post Share on other sites
Z320 Posted September 15, 2019 Author Report Share Posted September 15, 2019 (edited) Hi Hamish, you shure took the flywheel off from the engine to drill it on the drilling machine? Marco Edited September 15, 2019 by Z320 Quote Link to post Share on other sites
Hamish Posted September 15, 2019 Report Share Posted September 15, 2019 Yes. I cant claim the expertise of doing it. I had it drilled by someone who has a template for the threaded holes and the dowl / peg holes. Quote Link to post Share on other sites
Waldi Posted September 15, 2019 Report Share Posted September 15, 2019 I wonder how accurate you can get the centering holes (and what is originally achieved, Even if only a bit off, it would have significant effect on vibrations. But if you would balance the whole assembly (minus the driven plate) that would not matter. Waldi Quote Link to post Share on other sites
Z320 Posted September 15, 2019 Author Report Share Posted September 15, 2019 Bob already told at another post the new clutch could already be the template.... I guess the most accurate drills only must be the two centering pins to get the unit in the correct position. For a mechanic this should be a solvable challenge. Quote Link to post Share on other sites
stuart Posted September 16, 2019 Report Share Posted September 16, 2019 On 9/15/2019 at 9:30 AM, Z320 said: This TR3 clutch I got borrowed from a friend for a closer look, weight is 7.3 kg On the fingers I realize where the release bearing touches them Origininal release bearing from a TR4A-TR6 Closer look Closer look on the Sachs release bearing - I guess this will not work. Sorry to all TR2-4 downers.... FWIW The release bearing is different for a spring clutch (TR2/3/3a/4) to a diaphragm clutch (TR4a/5/6) Stuart. Quote Link to post Share on other sites
Z320 Posted September 21, 2019 Author Report Share Posted September 21, 2019 Hi, all 4 sets are ready and will go out at Monday to their owners. I guess I will fit mine in Dezember or January on the car, so it is time for some other projects (already started). For any question please ask. Ciao, Marco Quote Link to post Share on other sites
RogerH Posted September 22, 2019 Report Share Posted September 22, 2019 Hi Marco, I like your wine bottle cork pipe seals. Roger Quote Link to post Share on other sites
Z320 Posted September 22, 2019 Author Report Share Posted September 22, 2019 16 minutes ago, RogerH said: Hi Marco, I like your wine bottle cork pipe seals. Roger Guess how much wine I had to drink for my friends....! Quote Link to post Share on other sites
RogerH Posted September 22, 2019 Report Share Posted September 22, 2019 Hic Quote Link to post Share on other sites
Z320 Posted April 13, 2020 Author Report Share Posted April 13, 2020 (edited) Hi, it's me back on this post again, tomorrow the gearbox will be out of the car, before I checked some things. With my lovely wife behind the steering wheel first i checked the way my 0,625" master cylinder can be pushed. About 34 mm is a volume of 6,72 ml (cm³) that will move the hyraulic release bearing for about 9 mm, 34 mm is more than the 31 mm which I remember with the 0,75" master? Is the 0,625" different deep? Next I measure indirect the way behind the sleeve of the release bearing, on the leaver about 14 mm, that's probably about 14 mm x 65/87 = 10,45 mm behind the sleeve (see my first post). This could be interesting for a different modification of the gearbox front cover (where the sleeve slides on). Last, the force I have to step on the pedal, about 20.5 - 21.5 kg, that's OK for me but I want less. That's it for today, Ciao, Marco Edited April 14, 2020 by Z320 Quote Link to post Share on other sites
Z320 Posted April 18, 2020 Author Report Share Posted April 18, 2020 Hi, had to do differnt things the last days but die gearbox is out. A little bit oily inside but looks worse than it is, the RHP release bearing runs free and easy. But what I realized on the fingers of the diaphragm spring is - the bearing is too wide, the lenght of the finers are not fully used. Shure this was already the case in 2012 but I did not think this to the end. The Sachs hydraulic bearing will be in contact direct on the end of the fingers - I should make a different photo to show this. Ciao, Marco Quote Link to post Share on other sites
Z320 Posted April 19, 2020 Author Report Share Posted April 19, 2020 better photo as promissed Quote Link to post Share on other sites
Z320 Posted April 21, 2020 Author Report Share Posted April 21, 2020 Return to the post above I checked the gap behind the sleeve with a small piece of wood, 10.5 mm thick. Indeed 10.5 mm gap is 14.5 mm way on the leaver. So with the collected information from my "thickness of a new clutch dics" I can check the space I can use for the hydraulic release bearing. Quote Link to post Share on other sites
Z320 Posted April 24, 2020 Author Report Share Posted April 24, 2020 Well, some of you may ask yourself (or not): "Why does he not continue with the assembly? Are there any problems or serious reasons for this?" I'm now at this point, TR gearbox is cleaned, and soon I will continue. The "delay" is because the thing left from the TR gearbox... Stupid accident Ciao, Marco Quote Link to post Share on other sites
Waldi Posted April 24, 2020 Report Share Posted April 24, 2020 Oh Marco, Looks here is a new challenge. Does SHE now? Waldi Quote Link to post Share on other sites
Z320 Posted April 24, 2020 Author Report Share Posted April 24, 2020 My lovely wife? Shure! She received the delivery Quote Link to post Share on other sites
Z320 Posted April 29, 2020 Author Report Share Posted April 29, 2020 (edited) Hi, have lots of work at the office, so the progress on the hydraulic clutch release bearing sadly slowed down. Here some impressions from the assambly before first fit on my spare part engine. That's the moment to check the pre-load of the Sachs-hydraulic. What is about this? Stepping on the clutch pedal moves the piston of the master cylinder in - and the piston of the central hydraulic out. We calculated: a 0,75" master moves this central hydraulic out about 13 mm, a 0,70" master does it about about 11 mm, my 0,625 master about 9 mm Therefore the central hydraulik has to be pre-loaded for about 15 mm by bolting the gearbox against the engine. This is how I checked it: This bar is the end of the, I measure the bearing is about 67 mm in the gearbox bell housing. This bar is in touch with the end of "the fingers" of the diaphram spring, this is about 85 mm in the gearbox bell housing. So the pre load is abot 67 - 85 mm = - 18 mm, and this hydraulic can be compressed about 20 - 21 mm. That's OK, compression would be about 5 mm less with a new clutch disc, still OK for the 0,70" and my 0,625" master. That's it for the moment, I have to stop this for some measurement and experiments on the other gearbox. Ciao, Marco Edited April 30, 2020 by Z320 Quote Link to post Share on other sites
Waldi Posted April 30, 2020 Report Share Posted April 30, 2020 Hi Marco, looking good. I assume you want to use the MX5 box for the extra gear. Is the final drive ratio “better“ too? The Triumph GB has an integrated bell house (one casting for box and bell), are you planning to use an adapter plate to mate the mx5 GB with TR engine? Cheers, Waldi Quote Link to post Share on other sites
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