Spit_2.5PI Posted December 16, 2024 Report Share Posted December 16, 2024 A more pertinent question might be ... will PTFE pop off the Lucas fitting at some embarrassing (or worse) moment? Quote Link to post Share on other sites
Jonny TR6 Posted December 16, 2024 Report Share Posted December 16, 2024 On 12/14/2024 at 3:51 PM, Mike Morris said: I went to Pirtek in Liverpool today and they just scratched their head. I have left one pipe with them to investigate etc but now getting disheartened and will end up buying a set from one of the main players. Has anyone any joy with replacing them and where from please? Were you asking them to just replace the pipe or the fittings as well ? Quote Link to post Share on other sites
Andy Moltu Posted December 17, 2024 Report Share Posted December 17, 2024 All you need is a roll of the pipe & make them up yourself. Take a pipe with unions to Pirtek and they will likely say "what's that?" but ask them for a roll of the PTFE pipe of 4.8 mm internal diameter you might get a better response. It's a tight interference fit in the pipe so damn near impossible to get off once on - realistically you have to cut it off with a sharp knife. Can be tricky to get the unions on in the garage in winter - I find warming the end of the pipe in a mug of hot water makes the a bit more flexible. It's not hot enough to denature the pipe - after all it will be exposed to significant heat at times under the bonnet where it goes over the engine. As for braided pipes - bling and perhaps worse than standard in that the metal braiding can facilitate heat transfer to the pipe.. Quote Link to post Share on other sites
Waldi Posted December 17, 2024 Report Share Posted December 17, 2024 23 hours ago, Spit_2.5PI said: A more pertinent question might be ... will PTFE pop off the Lucas fitting at some embarrassing (or worse) moment? That’s what I wondered too. I see no reason (advantage) to change the material from the std nylon to ptfe. Waldi Quote Link to post Share on other sites
Mike C Posted December 17, 2024 Report Share Posted December 17, 2024 7 hours ago, Waldi said: That’s what I wondered too. I see no reason (advantage) to change the material from the std nylon to ptfe. Waldi +1. Nylon seems to be working successfully with current fuel blends. Any fuel that would warrant PTFE would be too reactive for general use. Quote Link to post Share on other sites
Jonny TR6 Posted December 18, 2024 Report Share Posted December 18, 2024 If PTFE is readily available at low cost then there should be no issues ? Anyway, we appear to have scared off the OP with our in depth analysis. Quote Link to post Share on other sites
Waldi Posted December 18, 2024 Report Share Posted December 18, 2024 6 hours ago, Jonny TR6 said: If PTFE is readily available at low cost then there should be no issues ? Anyway, we appear to have scared off the OP with our in depth analysis. It’s not a matter of cost here IMHO, the nylon pipes are not expensive at all. For me it is a matter of avoiding/reducing risk. Every change in design introduces a risk, that is not always anticipated (or is it understood) by us. Waldi Quote Link to post Share on other sites
JohnC Posted December 19, 2024 Report Share Posted December 19, 2024 On 12/19/2024 at 5:33 AM, Waldi said: It’s not a matter of cost here IMHO, the nylon pipes are not expensive at all. For me it is a matter of avoiding/reducing risk. Every change in design introduces a risk, that is not always anticipated (or is it understood) by us. Wise words. Quote Link to post Share on other sites
Mike Morris Posted December 20, 2024 Author Report Share Posted December 20, 2024 On 12/16/2024 at 6:02 PM, Jonny TR6 said: Were you asking them to just replace the pipe or the fittings as well ? Just the pipe using the original fittings Quote Link to post Share on other sites
Mike Morris Posted December 20, 2024 Author Report Share Posted December 20, 2024 On 12/18/2024 at 12:15 PM, Jonny TR6 said: If PTFE is readily available at low cost then there should be no issues ? Anyway, we appear to have scared off the OP with our in depth analysis. Ha Ha, crying into my beer. Took the advice of Kevo_6 and went to TR Trader. Spoke to Carl who made me a nylon set the next day. Now just have to fit them. The mechanic who was fitting them has now gone awol. so may have a go myself. He removed the metering unit together with the distributer (marking the rotor position). So long at the rotor is in the same position - all will be well? Quote Link to post Share on other sites
harrytr5 Posted December 20, 2024 Report Share Posted December 20, 2024 (edited) Take your time Mike. Once you have done it, you will wonder what was all that fuss was about! Every day is a school day and you will be so satisfied when it will be running and say to yourself "I did that" Vid of it running Mike please. Regards Harry Edited December 20, 2024 by harrytr5 Quote Link to post Share on other sites
Mike Morris Posted December 20, 2024 Author Report Share Posted December 20, 2024 1 hour ago, harrytr5 said: Take your time Mike. Once you have done it, you will wonder what was all that fuss was about! Every day is a school day and you will be so satisfied when it will be running and say to yourself "I did that" Vid of it running Mike please. Regards Harry Thanks Harry. Vid of it running? I can't seem to post a photo the correct way up ha ha Quote Link to post Share on other sites
harrytr5 Posted December 20, 2024 Report Share Posted December 20, 2024 where are you Mike? H Quote Link to post Share on other sites
Mike Morris Posted December 20, 2024 Author Report Share Posted December 20, 2024 2 hours ago, harrytr5 said: where are you Mike? H Southport Quote Link to post Share on other sites
harrytr5 Posted December 20, 2024 Report Share Posted December 20, 2024 Too far away from me then. Someone local in our club should be able to help you if you are struggling Regards Harry Quote Link to post Share on other sites
Kenrow Posted December 20, 2024 Report Share Posted December 20, 2024 One option: TR6 Injector Leads - eBay Quote Link to post Share on other sites
Waldi Posted December 22, 2024 Report Share Posted December 22, 2024 The transparent (nylon??) fuel pipes between MU and injectors may not be original but gave one advantage: you can see if there is entrapped air in the pipe. Has anyone experience with these transparent pipes, and what do you see? Waldi Quote Link to post Share on other sites
JohnC Posted December 23, 2024 Report Share Posted December 23, 2024 17 hours ago, Waldi said: The transparent (nylon??) fuel pipes between MU and injectors may not be original but gave one advantage: you can see if there is entrapped air in the pipe. Has anyone experience with these transparent pipes, and what do you see? Waldi I have white translucent pipes and, yes, I can see any air bubble that forms. Since having my injectors reconditioned there is rarely a bubble in any of the pipes. Before, there would be a ~2cm bubble in each pipe after standing for a few days. JC Quote Link to post Share on other sites
Waldi Posted December 23, 2024 Report Share Posted December 23, 2024 Thank you John. My car is difficult to start and the clear pipes would have been a simple aid in analysing the cause(s). Even removing the PRV for testing is not a simple job, given it’s location and accessability. Next time the MU is removed (nothing planned yet) I will install these clear pipes. Waldi Quote Link to post Share on other sites
harrytr5 Posted December 23, 2024 Report Share Posted December 23, 2024 Hi Waldi, The PRV is on the chassis for the TR5 and much easier to service. The TR6 one is next to the fuel tank and more of a pain to service. Regards Harry Quote Link to post Share on other sites
Waldi Posted December 23, 2024 Report Share Posted December 23, 2024 (edited) Thank you Harry, I know exactly where it is;) I had to remove it 3 years ago after it had become stuck during the winter lay-up. Waldi Edited December 23, 2024 by Waldi Quote Link to post Share on other sites
Kenrow Posted December 27, 2024 Report Share Posted December 27, 2024 On 12/17/2024 at 6:13 AM, Waldi said: That’s what I wondered too. I see no reason (advantage) to change the material from the std nylon to ptfe. Waldi +1, but isn't the current recommendation to use Nylon 12 over the Nylon 66 (which is not ethanol 100% proof) used in the original tubing? Quote Link to post Share on other sites
Mike C Posted December 27, 2024 Report Share Posted December 27, 2024 3 hours ago, Kenrow said: +1, but isn't the current recommendation to use Nylon 12 over the Nylon 66 (which is not ethanol 100% proof) used in the original tubing? I've had no problem with the original tubing using Australian high octane. Quote Link to post Share on other sites
Waldi Posted December 27, 2024 Report Share Posted December 27, 2024 I ordered mine from Neil Ferguson, and did not ask what grade of nylon they are had so issues since 2019. Waldi Quote Link to post Share on other sites
JohnG Posted December 28, 2024 Report Share Posted December 28, 2024 On 12/3/2024 at 6:47 PM, Mike Morris said: Lastly, I didnt think I needed to sell a kidney to replace these pipes - wow. Should I stick to nylon or go with braided which are the same price?? Don't go braided. Took them off my '6' and reverted to good condition 2nd hand originals Engine ran a lot better Quote Link to post Share on other sites
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