Found this on the web:
https://www.vansaircraft.com/pdf/Torque_Spec_Aluminum_Fittings.pdf
-----UrsprC<ngliche Nachricht-----
Von: Duncan Charlton [mailto:duncan.charlton54@gmail.com]
Gesendet: Mittwoch, 31. Dezember 2014 13:39
An: MadMarx
Betreff: Re: AW: [Fot] Aluminum connectors
Chris,
Were you able to find torque figures for tightening them? If they are clean
and new, tightened to the proper spec, they may be faulty. I have used them
in my fuel system, where the low viscosity and surface tension of gasoline
would surely find the slightest gap in the seal.
Duncan
On 12/31/14, 6:36 AM, MadMarx wrote:
> Hi Duncan,
>
> that is my understanding, that these connectors should be self sealing.
> But even with the taper surfaces in new condition they seem to let oil
through.
>
> Cheers
> Chris
>
>
> -----UrsprC<ngliche Nachricht-----
> Von: Duncan Charlton [mailto:duncan.charlton54@gmail.com]
> Gesendet: Mittwoch, 31. Dezember 2014 13:18
> An: MadMarx
> Betreff: Re: [Fot] Aluminum connectors
>
> Chris,
> No seal should be required. The tapers should seat against each other.
> Perhaps they've been assembled and disassembled enough times that the mating
surfaces are damaged. The design is intended to produce a metal-to-metal
contact on the tapers, and the threads are not expected to seal. You might
disassemble the leakers to see if the tapers look damaged.
>
> Duncan
> (Texas)
>
>
> On 12/31/14, 5:44 AM, MadMarx wrote:
>> Hi @ all,
>>
>> hope you are getting well to the next year.
>>
>> My car has many oil lines and also a lot of aluminum connectors and
>> some of the them do leak.
>> Is there any trick to seal them?
>> I think that I have tighten them enough and hesitate to tighten more
>> not to destroy them.
>>
>> Is there a seal missing in those connectors?
>>
>> http://ecx.images-amazon.com/images/I/41P918-F13L.jpg
>>
>> Just an example what I mean for the system.
>>
>> Cheers
>> Chris
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