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Tape seal
Rob E - 25/5/11 at 02:53 PM

Hi all
Just bought a new fuel reg and it says I need to use tape seal?? on the inlets and outlets , I take it you can't use ptfe tape as the fuel will brake it down , can I use gasket seal or is there such a thing as a tape seal and if so where do you buy it ??
Cheers
Rob

blakep82 - 25/5/11 at 03:00 PM

http://en.wikipedia.org/wiki/Thread_seal_tape

Rob E - 25/5/11 at 03:58 PM

Cheers Blake but I'm sure you can't use ptfe tape because the fuel will brake it down causing leaks.

MikeRJ - 25/5/11 at 06:59 PM

PTFE is almost completely inert, very few chemicals will 'break' it down including petrol. However, it's not a great idea to use on fuel lines as it tends to get torn into very fine threads as you tighten the fittings and they could easily end up in the fuel pipe.

One of the liquid thread sealants might be a better idea, e.g. Loctite 567

[Edited on 25/5/11 by MikeRJ]

Craigman9 - 25/5/11 at 07:59 PM

I work on anchor handling ships and we use PTFE tape on pretty much anything. Not sure if it's the recommended way or not but seems to do the job for me

Rob E - 26/5/11 at 06:13 AM

Someone on another forum was telling me that he got stuck at sea because someone used ptfe tape on a fuel line , so be careful

Craigman9 - 26/5/11 at 06:33 AM

quote:
Originally posted by Rob E
Someone on another forum was telling me that he got stuck at sea because someone used ptfe tape on a fuel line , so be careful


Ohh dear, maybe I should have a rethink.......

franky - 26/5/11 at 06:35 AM

to go against the grain, ptfe tape will be fine as long as you don't put it too far down the thread.

Rob E - 26/5/11 at 03:02 PM

Someone told me I could use thread lock ?? Any thoughts ??

MikeRJ - 26/5/11 at 05:19 PM

quote:
Originally posted by Rob E
Someone told me I could use thread lock ?? Any thoughts ??


Yes, as I mentioned Loctite 567 is the right stuff for this. The datasheet explicitly mentions that it is suitable for sealing/locking in petroleum based applications.

Rob E - 27/5/11 at 12:15 PM

Yes cheers, I ended up going to my mate who works for audi and they have a lock tight paste so it seems to fill all the gaps equally , cheers for all your help on this, the last thing I wanted was fuel everywhere.