Yeah maybe it was short sided to use tape but the point was to "lubricate" the threads and allow a tight enough connection. It is in fact tight enough because my air filter now stays clean. Like i said, I may play hell getting it apart should the need arise. As for fumes, i haven't noticed any....
Josh On Jun 23, 2015 7:40 AM, "Bill Bina - gmail via CnC-List" < cnc-list@cnc-list.com> wrote: > I know That teflon tape is not used in fuel oil heating system lines > because the fuel dissolves teflon tape. > > Bill Bina > > On 6/23/2015 12:38 AM, Russ & Melody via CnC-List wrote: > > > Hi Josh, > > Good point made regarding tapered thread sealing qualities and the lube > aids to obtaining a good mechanical seal. > > I'm a little dismayed that you used Teflon tape on the exhaust fittings. > This is probably the worst application for the product (second being any > system with a pump in it). It is best used in domestic water situations. > > At about 660 degrees F Teflon tape decomposes and emits a toxic fume. > Fatal to birds in the home when the frying pan gets too hot and probably > not good for humans in a small space either. > > I whole heartedly support the use of high temp anti-seize. It might stink > a wee bit on the first couple of runs but it probably won't harm you. > > Cheers, Russ > *Sweet *35 mk-1 > > At 04:08 AM 22/06/2015, you wrote: > > Most if not all pipe dopes and Teflon tape sealers are not really there to > "seal" the threads of a NPT fitting from leaking. They are simply there > to lubricate the threads so a sufficiently tight connection can be made. > The lubricant may also help in disassembly. By design the mechanical > compression as a result of the tapered threads is what is actually supposed > to prevents leaks. Yes, you can use all manner of sealants which may > "help" but a proper NPT connection shouldn't need it. > > That being said, I used Teflon tape on my exhaust (3GM35F). Just 2 > wraps. I may have difficulty getting the joint apart, who knows. I also > used a bench vice to provide enough counter-torque. > > As a suggestion I would give high temp anti-seaze a try. It is usually > copper colored and most auto parts stores should carry it. If you've ever > replaced an O2 sensor they include a small tube. > > Josh Muckley > S/V Sea Hawk > 1989 C&C 37+ > Solomons, MD > > > > _______________________________________________ > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go to the > bottom of page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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