skydawg Posted June 3, 2023 Share Posted June 3, 2023 When replacing the fuel line fitting to the injection pump....good insurance or not necessary?Or a bad idea? Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/ Share on other sites More sharing options...
Joey Mack Posted June 3, 2023 Share Posted June 3, 2023 NO Teflon Tape on any Hydraulic fittings.. Gasoila brush-on or Permatex brush on.. Tape is good, In it's world, but not here. if a piece of it cuts loose or blocks flow,,, you Will! have a problem.. I brush PTF sealer on and wipe the excess off and It's good to go Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532423 Share on other sites More sharing options...
mrsmackpaul Posted June 3, 2023 Share Posted June 3, 2023 I rarely use tefoln tape except for plumbing in the house I have had tiny bits break of and block airlines and get in fuel lines Hydraulic oil corrodes it and it begins to leak a long time later I rate it about aa good as silicone or those form a gasket types Thread sealant, the none hardening type, loctite is my preferred brand is all I use these days Use proper thing for the job, to many sure cuts and "she'll be right" type of thinking have come back to haunt me over the years, I think that's called life experience 😆 Paul Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532430 Share on other sites More sharing options...
The Rubber Duck 006 Posted June 3, 2023 Share Posted June 3, 2023 Yup no Teflon in any high pressure situation. Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532432 Share on other sites More sharing options...
mowerman Posted June 4, 2023 Share Posted June 4, 2023 Indian head brush on even smell strong ha ha I know it holds out gasoline.. Bob Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532472 Share on other sites More sharing options...
mowerman Posted June 4, 2023 Share Posted June 4, 2023 Air and diesel fuel as well. …..Air starter parts. Vender Also do not recommend the tape and yes, I also use the tape on plumbing household. Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532473 Share on other sites More sharing options...
Joey Mack Posted June 4, 2023 Share Posted June 4, 2023 Oh Hell,,, When I was much younger, all the Mechanics had that brown bottle with the Indian Chief on it.. Smells terrible, works great.. 2 Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532474 Share on other sites More sharing options...
Popular Post Mark T Posted June 4, 2023 Popular Post Share Posted June 4, 2023 Joey, back then it was commonly referred to as "shellac" (lol) everything was going to leak if you didn't use the shellac on it. Least around here in this area anyway. 4 Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532476 Share on other sites More sharing options...
Joey Mack Posted June 4, 2023 Share Posted June 4, 2023 Yes Mark I know.. I was just trying to appeal to the young'ns.. Actually... I need to buy a bottle and brush it on some metal to see how it does again.. I remember it being a B!tch to scrape off.. But not as bad as an E-6 Pan Gasket... 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532477 Share on other sites More sharing options...
Mark T Posted June 5, 2023 Share Posted June 5, 2023 Rol loc makes short work of cleaning it off. Didn't have them back then either. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532484 Share on other sites More sharing options...
skydawg Posted June 5, 2023 Author Share Posted June 5, 2023 This fuel line fitting has a cable-operated shutoff valve.The lever on it has to end up more or less in line w/ the cable that pulls it when the fitting is fully tight.I thought if it`s way off,I could use the tape to adjust it to where it should be when tight. Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532495 Share on other sites More sharing options...
Popular Post Freightrain Posted June 5, 2023 Popular Post Share Posted June 5, 2023 Typical pipe fittings should have enough give to align a fitting and seal okay. As long as you don't try to over tighten it and then try to back it up. 2 1 Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532517 Share on other sites More sharing options...
skydawg Posted June 5, 2023 Author Share Posted June 5, 2023 Ok,thanks for the tip. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532520 Share on other sites More sharing options...
mowerman Posted June 8, 2023 Share Posted June 8, 2023 Good luck bud.. Bob Quote Link to comment https://www.bigmacktrucks.com/topic/72914-teflon-tape-usage/#findComment-532636 Share on other sites More sharing options...
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