Posted by Schiffner on June 29, 2009, 9:05 am
> On 29 June, 11:53, AWR7MM...@webtv.net (Mike Corey) wrote:
> > >I've heard putting teflon tape on the threads
> > > when installing the bleeders can prevent this.
> > I'm a machinery maintenance technician / maintenance electrician, and in
> > my experience teflon tape and hydraulics do not mix. I'm sure it would
> > be the same with motorcycle hydraulic items. Banjo bolts have sealing
> > washers and hydraulic fittings have tapered sealing fittings that work
> > well.
> I wouldn't rely on a tape bodge on something as crucial as brakes and
> anyway, as Krusty says, the threads on the bleed nipple (as we call it
> on this side of the pond) don't do the actual sealing anyway.
the teflon tape on the nipples (that sounds SO wrong) isn't for
sealing...it's to facilitate loosening prior changing the fluid. Used
to use anti-seize compounds but have found the tape is better for the
application.
What do I know? But it works for me.
--
Keith
Posted by Mark Olson on June 29, 2009, 9:24 am
Schiffner wrote:
>> On 29 June, 11:53, AWR7MM...@webtv.net (Mike Corey) wrote:
>>
>>>> I've heard putting teflon tape on the threads
>>>> when installing the bleeders can prevent this.
>>> I'm a machinery maintenance technician / maintenance electrician, and in
>>> my experience teflon tape and hydraulics do not mix. I'm sure it would
>>> be the same with motorcycle hydraulic items. Banjo bolts have sealing
>>> washers and hydraulic fittings have tapered sealing fittings that work
>>> well.
>> I wouldn't rely on a tape bodge on something as crucial as brakes and
>> anyway, as Krusty says, the threads on the bleed nipple (as we call it
>> on this side of the pond) don't do the actual sealing anyway.
>
> the teflon tape on the nipples (that sounds SO wrong) isn't for
> sealing...it's to facilitate loosening prior changing the fluid. Used
> to use anti-seize compounds but have found the tape is better for the
> application.
>
> What do I know? But it works for me.
The only reason for using TeflonŽ tape on bleeder nipples that makes any
sense to me is so that air doesn't leak past the threads when you are
using a vacuum pump to bleed the brakes and want to avoid seeing any air
bubbles. Note that having air bubbles in the line to the vacuum pump
doesn't have anything to do with there actually being air in the system.
If seeing bubbles doesn't bother you, there's no reason to use the tape.
Posted by Schiffner on June 29, 2009, 12:40 pm
> Schiffner wrote:
> >> On 29 June, 11:53, AWR7MM...@webtv.net (Mike Corey) wrote:
> >>>> I've heard putting teflon tape on the threads
> >>>> when installing the bleeders can prevent this.
> >>> I'm a machinery maintenance technician / maintenance electrician, and in
> >>> my experience teflon tape and hydraulics do not mix. I'm sure it would
> >>> be the same with motorcycle hydraulic items. Banjo bolts have sealing
> >>> washers and hydraulic fittings have tapered sealing fittings that work
> >>> well.
> >> I wouldn't rely on a tape bodge on something as crucial as brakes and
> >> anyway, as Krusty says, the threads on the bleed nipple (as we call it
> >> on this side of the pond) don't do the actual sealing anyway.
> > the teflon tape on the nipples (that sounds SO wrong) isn't for
> > sealing...it's to facilitate loosening prior changing the fluid. Used
> > to use anti-seize compounds but have found the tape is better for the
> > application.
> > What do I know? But it works for me.
> The only reason for using Teflon® tape on bleeder nipples that makes any
> sense to me is so that air doesn't leak past the threads when you are
> using a vacuum pump to bleed the brakes and want to avoid seeing any air
> bubbles. Note that having air bubbles in the line to the vacuum pump
> doesn't have anything to do with there actually being air in the system.
> If seeing bubbles doesn't bother you, there's no reason to use the tape.
Ah thankyou sirrah! I'd forgot that part...mixing too much concrete
today.
--
Keith
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> > >I've heard putting teflon tape on the threads
> > > when installing the bleeders can prevent this.
> > I'm a machinery maintenance technician / maintenance electrician, and in
> > my experience teflon tape and hydraulics do not mix. I'm sure it would
> > be the same with motorcycle hydraulic items. Banjo bolts have sealing
> > washers and hydraulic fittings have tapered sealing fittings that work
> > well.
> I wouldn't rely on a tape bodge on something as crucial as brakes and
> anyway, as Krusty says, the threads on the bleed nipple (as we call it
> on this side of the pond) don't do the actual sealing anyway.