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jd(at)lawsonimaging.ca
Guest
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 Posted: Sun Aug 15, 2010 12:28 pm Post subject: positioning right angle AN fittings |
 |
|
Greetings... just wondering if anyone has any tips on getting right angle fittings both
tight, *and* pointing in the right direction?
On my oil cooler, I need one fitting pointing straight ahead, and the other straight aft.
Naturally, when these [non-swivelling] fittings are tightened up properly, they don't
point where I want them to. As it turns out, each one would need to be backed off about
30 degrees, and then it would then seep oil. Fuel Lube isn't sufficient, perhaps Permatex
Form-a-Gasket, or something else? Any other ideas? Thanks!
--
Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc. | (computer science) |
| *NIX consulting, SysAdmin | email: jd at lawsonimaging.ca |
+-------------------------------------------------------------+
I bought some powdered water, but I don't know what to
add to it.
--- Steven Wright
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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n320wt(at)yahoo.com
Guest
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| Posted: Sun Aug 15, 2010 2:51 pm Post subject: positioning right angle AN fittings |
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|
I use Pro-Seal on all pipe threads that carry fuel,oil or hydraulic fluid. The threads are not standard on npt as far as where they begin relative to the angle of the fitting. If both fittings are the same, try swapping them and see where they tighten up. In some cases a pipe tap can be used to cut the threads a little deeper but be very careful as you can go to deep and then the fitting will not tighten up at all.
BRIAN ALLEY (N320WT)
CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Sun, 8/15/10, j. davis <jd(at)lawsonimaging.ca> wrote:
| Quote: | From: j. davis <jd(at)lawsonimaging.ca>
Subject: positioning right angle AN fittings
To: rv-list(at)matronics.com
Date: Sunday, August 15, 2010, 4:19 PM
davis" <jd(at)lawsonimaging.ca>
Greetings... just wondering if anyone has any tips on
getting right angle fittings both tight, *and* pointing in
the right direction?
On my oil cooler, I need one fitting pointing straight
ahead, and the other straight aft.
Naturally, when these [non-swivelling] fittings are
tightened up properly, they don't point where I want them
to. As it turns out, each one would need to be backed
off about 30 degrees, and then it would then seep oil. Fuel
Lube isn't sufficient, perhaps Permatex Form-a-Gasket, or
something else? Any other ideas? Thanks!
-- Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc.
| (computer science)
|
| *NIX consulting, SysAdmin | email: jd at
lawsonimaging.ca |
+-------------------------------------------------------------+
I bought some powdered water, but I don't know what to
add to it.
--- Steven Wright
Forum -
FAQ,
- MATRONICS WEB FORUMS -
List Contribution Web Site -
-Matt
Dralle, List Admin.
|
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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carl.froehlich(at)verizon
Guest
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| Posted: Sun Aug 15, 2010 4:02 pm Post subject: positioning right angle AN fittings |
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|
I find this product very effective on pipe thread and gaskets:
http://www.aircraftspruce.com/catalog/eppages/titesealit.php
One can is good for a dozen airplanes.
Carl Froehlich
RV-8A (550 hrs)
RV-10 (systems install)
--
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StooDDS(at)aol.com
Guest
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| Posted: Mon Aug 16, 2010 12:14 am Post subject: positioning right angle AN fittings |
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|
Best way to handle this is to run the male thread of the fitting into the appropriate pipe thread die. These are available at the hardware store. Screw it in by hand until it is tight, then just a little more. Clean the threads and try it. If you use a tap on the female threads, the chips are going to fall into the oil cooler-----------
Stewart Willoughby
6,finishing
[quote][b]
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jd(at)lawsonimaging.ca
Guest
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| Posted: Tue Aug 17, 2010 4:40 pm Post subject: positioning right angle AN fittings |
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|
On 08/16/2010 04:12 AM, StooDDS(at)aol.com wrote:
| Quote: | Best way to handle this is to run the male thread of the fitting into
the appropriate pipe thread die. These are available at the hardware
store. Screw it in by hand until it is tight, then just a little more.
Clean the threads and try it. If you use a tap on the female threads,
the chips are going to fall into the oil cooler-----------
Stewart Willoughby
6,finishing
Hmmm, not sure I understand this. These are tapered pipe fittings, are they not? When
|
tight, there are still exposed threads. Adding a few more threads with a die wouldn't
change anything, would it?
--
Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc. | (computer science) |
| *NIX consulting, SysAdmin | email: jd at lawsonimaging.ca |
+-------------------------------------------------------------+
My uncle's an airline pilot... Kinda makes it difficult
to hold the bottle though.
--- Steven Wright
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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n320wt(at)yahoo.com
Guest
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| Posted: Tue Aug 17, 2010 5:57 pm Post subject: positioning right angle AN fittings |
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|
Yes it would. The threads would be cut the full length of the taper, not just more threads on the uncut end as a straight die would do. This is an excellent idea and I'll be purchasing dies for my tool box ASAP.
BRIAN ALLEY (N320WT)
CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Tue, 8/17/10, j. davis <jd(at)lawsonimaging.ca> wrote:
| Quote: | From: j. davis <jd(at)lawsonimaging.ca>
Subject: Re: positioning right angle AN fittings
To: rv-list(at)matronics.com
Date: Tuesday, August 17, 2010, 8:26 PM
davis" <jd(at)lawsonimaging.ca>
On 08/16/2010 04:12 AM, StooDDS(at)aol.com
wrote:
> Best way to handle this is to run the male thread of
the fitting into
> the appropriate pipe thread die. These are available
at the hardware
> store. Screw it in by hand until it is tight, then
just a little more.
> Clean the threads and try it. If you use a tap on the
female threads,
> the chips are going to fall into the oil
cooler-----------
> Stewart Willoughby
> 6,finishing
>
Hmmm, not sure I understand this. These are tapered pipe
fittings, are they not? When tight, there are still exposed
threads. Adding a few more threads with a die wouldn't
change anything, would it?
-- Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc.
| (computer science)
|
| *NIX consulting, SysAdmin | email: jd at
lawsonimaging.ca |
+-------------------------------------------------------------+
My uncle's an airline pilot... Kinda makes it difficult
to hold the bottle though.
--- Steven Wright
Forum -
FAQ,
- MATRONICS WEB FORUMS -
List Contribution Web Site -
-Matt
Dralle, List Admin.
|
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
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jsflyrv(at)verizon.net
Guest
|
| Posted: Tue Aug 17, 2010 6:42 pm Post subject: positioning right angle AN fittings |
|
|
If it was my airplane I would not be cutting on any AN fittings!!!!!!
Jerry
Brian Alley wrote:
| Quote: |
Yes it would. The threads would be cut the full length of the taper, not just more threads on the uncut end as a straight die would do. This is an excellent idea and I'll be purchasing dies for my tool box ASAP.
BRIAN ALLEY (N320WT)
CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Tue, 8/17/10, j. davis <jd(at)lawsonimaging.ca> wrote:
> From: j. davis <jd(at)lawsonimaging.ca>
> Subject: Re: positioning right angle AN fittings
> To: rv-list(at)matronics.com
> Date: Tuesday, August 17, 2010, 8:26 PM
>
> davis" <jd(at)lawsonimaging.ca>
>
> On 08/16/2010 04:12 AM, StooDDS(at)aol.com
> wrote:
>
>> Best way to handle this is to run the male thread of
>>
> the fitting into
>
>> the appropriate pipe thread die. These are available
>>
> at the hardware
>
>> store. Screw it in by hand until it is tight, then
>>
> just a little more.
>
>> Clean the threads and try it. If you use a tap on the
>>
> female threads,
>
>> the chips are going to fall into the oil
>>
> cooler-----------
>
>> Stewart Willoughby
>> 6,finishing
>>
>>
> Hmmm, not sure I understand this. These are tapered pipe
> fittings, are they not? When tight, there are still exposed
> threads. Adding a few more threads with a die wouldn't
> change anything, would it?
>
> -- Regards, J.
>
> Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
> restoring the Johnston Special
> http://cleco.ca
>
> +-------------------------------------------------------------+
> | J. Davis, M.Sc.
> | (computer science)
> |
> | *NIX consulting, SysAdmin | email: jd at
> lawsonimaging.ca |
> +-------------------------------------------------------------+
> My uncle's an airline pilot... Kinda makes it difficult
> to hold the bottle though.
>
> --- Steven Wright
>
> Forum -
> FAQ,
> - MATRONICS WEB FORUMS -
> List Contribution Web Site -
> -Matt
> Dralle, List Admin.
>
>
>
------------------------------------------------------------------------
Checked by AVG - www.avg.com
|
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http://www.matronics.com/Navigator?RV-List |
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rv10rob(at)gmail.com
Guest
|
| Posted: Wed Aug 18, 2010 5:45 am Post subject: positioning right angle AN fittings |
|
|
When I'm tightening an angled fitting into a tapered hole, if it's not where it needs to be when it gets tight, I just back it off a little and retighten, and it goes a little further. Any reason not to do that?
-Rob
On Tue, Aug 17, 2010 at 7:38 PM, Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)> wrote:
| Quote: | --> RV-List message posted by: Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)>
If it was my airplane I would not be cutting on any AN fittings!!!!!!
Jerry
Brian Alley wrote:
| Quote: |
--> RV-List message posted by: Brian Alley <n320wt(at)yahoo.com (n320wt(at)yahoo.com)>
Yes it would. The threads would be cut the full length of the taper, not just more threads on the uncut end as a straight die would do. This is an excellent idea and I'll be purchasing dies for my tool box ASAP.
BRIAN ALLEY (N320WT) CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Tue, 8/17/10, j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)> wrote:
| Quote: | From: j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
Subject: Re: positioning right angle AN fittings
To: rv-list(at)matronics.com (rv-list(at)matronics.com)
Date: Tuesday, August 17, 2010, 8:26 PM
--> RV-List message posted by: "j.
davis" <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
On 08/16/2010 04:12 AM, StooDDS(at)aol.com (StooDDS(at)aol.com)
wrote:
| Quote: | Best way to handle this is to run the male thread of
|
the fitting into
| Quote: | the appropriate pipe thread die. These are available
|
at the hardware
| Quote: | store. Screw it in by hand until it is tight, then
|
just a little more.
| Quote: | Clean the threads and try it. If you use a tap on the
|
female threads,
| Quote: | the chips are going to fall into the oil
|
cooler-----------
| Quote: | Stewart Willoughby
6,finishing
|
Hmmm, not sure I understand this. These are tapered pipe
fittings, are they not? When tight, there are still exposed
threads. Adding a few more threads with a die wouldn't
change anything, would it?
-- Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc. | (computer science) |
| *NIX consulting, SysAdmin | email: jd at
lawsonimaging.ca |
+-------------------------------------------------------------+
My uncle's an airline pilot... Kinda makes it difficult
to hold the bottle though.
--- Steven Wright
Forum -
FAQ,
- MATRONICS WEB FORUMS -
List Contribution Web Site -
-Matt
Dralle, List Admin.
|
------------------------------------------------------------------------
Checked by AVG - www.avg.com
|
Un/Subscription,
www.matronics.com/Navigator?RV-List" target="_blank">http://www.matronics.com/Navigator?RV-List
ronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
=====
|
--
Rob Kochman
RV-10 "Finishing" Kit
Woodinville, WA (near Seattle)
http://kochman.net/N819K
[quote][b]
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pitts_pilot(at)bellsouth.
Guest
|
| Posted: Wed Aug 18, 2010 6:01 am Post subject: positioning right angle AN fittings |
|
|
I guess you're talking about an aluminum fitting .... a steel one won't do that. Basically you're cold-flowing the aluminum, stretching the threads down towards the small end and fracturing the aluminum below the threads. Not a good thing. What you can do, as others have suggested is use a tap or die to cut the threads some so they clock where you want them. Jerry has a valid concern, but we're not adding a couple of turns here. The other thing is to use Teflon pipe dope if you can achieve the desired clocking close to 'tight'. If you use the pipe dope, stabilize the hose or tubing attached to the fitting to keep it from moving.
Linn
Rob Kochman wrote: [quote] When I'm tightening an angled fitting into a tapered hole, if it's not where it needs to be when it gets tight, I just back it off a little and retighten, and it goes a little further. Any reason not to do that?
-Rob
On Tue, Aug 17, 2010 at 7:38 PM, Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)> wrote:
| Quote: | --> RV-List message posted by: Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)>
If it was my airplane I would not be cutting on any AN fittings!!!!!!
Jerry
Brian Alley wrote:
| Quote: | --> RV-List message posted by: Brian Alley <n320wt(at)yahoo.com (n320wt(at)yahoo.com)>
Yes it would. The threads would be cut the full length of the taper, not just more threads on the uncut end as a straight die would do. This is an excellent idea and I'll be purchasing dies for my tool box ASAP.
BRIAN ALLEY (N320WT) CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Tue, 8/17/10, j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)> wrote:
| Quote: | From: j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
Subject: Re: positioning right angle AN fittings
To: rv-list(at)matronics.com (rv-list(at)matronics.com)
Date: Tuesday, August 17, 2010, 8:26 PM
--> RV-List message posted by: "j.
davis" <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
On 08/16/2010 04:12 AM, StooDDS(at)aol.com (StooDDS(at)aol.com)
wrote:
| Quote: | Best way to handle this is to run the male thread of
|
the fitting into
| Quote: | the appropriate pipe thread die. These are available
|
at the hardware
| Quote: | store. Screw it in by hand until it is tight, then
|
just a little more.
| Quote: | Clean the threads and try it. If you use a tap on the
|
female threads,
| Quote: | the chips are going to fall into the oil
|
cooler-----------
| Quote: | Stewart Willoughby
6,finishing
|
Hmmm, not sure I understand this. These are tapered pipe
fittings, are they not? When tight, there are still exposed
threads. Adding a few more threads with a die wouldn't
change anything, would it?
-- Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc. | (computer science) |
| *NIX consulting, SysAdmin | email: jd at
lawsonimaging.ca |
+-------------------------------------------------------------+
My uncle's an airline pilot... Kinda makes it difficult
to hold the bottle though.
--- Steven Wright
Forum -
FAQ,
- MATRONICS WEB FORUMS -
List Contribution Web Site -
-Matt
Dralle, List Admin.
|
------------------------------------------------------------------------
Checked by AVG - www.avg.com
|
Un/Subscription,
www.matronics.com/Navigator?RV-List" target="_blank">http://www.matronics.com/Navigator?RV-List
ronics.com/" target="_blank">http://forums.matronics.com
Matt Dralle, List Admin.
=====
|
--
Rob Kochman
RV-10 "Finishing" Kit
Woodinville, WA (near Seattle)
http://kochman.net/N819K
| Quote: |
href="http://www.matronics.com/Navigator?RV-List">http://www.matronics.com/Navigator?RV-List
href="http://forums.matronics.com">http://forums.matronics.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
|
[b]
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Jerry Grimmonpre'
Joined: 09 Jan 2006
Posts: 144
Location: Huntley, Illinois 60142
|
| Posted: Wed Aug 18, 2010 6:42 am Post subject: positioning right angle AN fittings |
|
|
The die simply cuts the threads higher up the fitting and effectively
re-indexes the point where the proper tightness points the 90° fitting about
where you want it. Hope this helps. Jerry
---
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rv10rob(at)gmail.com
Guest
|
| Posted: Wed Aug 18, 2010 8:06 am Post subject: positioning right angle AN fittings |
|
|
Seems to work on steel fittings, too (just did my oil cooler a couple weeks ago). Also, by that logic, wouldn't it mean you shouldn't use a fitting more than once (or tighten it down more than once)?
-Rob
On Wed, Aug 18, 2010 at 6:59 AM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
| Quote: | I guess you're talking about an aluminum fitting .... a steel one won't do that. Basically you're cold-flowing the aluminum, stretching the threads down towards the small end and fracturing the aluminum below the threads. Not a good thing. What you can do, as others have suggested is use a tap or die to cut the threads some so they clock where you want them. Jerry has a valid concern, but we're not adding a couple of turns here. The other thing is to use Teflon pipe dope if you can achieve the desired clocking close to 'tight'. If you use the pipe dope, stabilize the hose or tubing attached to the fitting to keep it from moving.
Linn
Rob Kochman wrote: | Quote: |
When I'm tightening an angled fitting into a tapered hole, if it's not where it needs to be when it gets tight, I just back it off a little and retighten, and it goes a little further. Any reason not to do that?
-Rob
On Tue, Aug 17, 2010 at 7:38 PM, Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)> wrote:
| Quote: |
--> RV-List message posted by: Jerry Springer <jsflyrv(at)verizon.net (jsflyrv(at)verizon.net)>
If it was my airplane I would not be cutting on any AN fittings!!!!!!
Jerry
Brian Alley wrote:
| Quote: | --> RV-List message posted by: Brian Alley <n320wt(at)yahoo.com (n320wt(at)yahoo.com)>
Yes it would. The threads would be cut the full length of the taper, not just more threads on the uncut end as a straight die would do. This is an excellent idea and I'll be purchasing dies for my tool box ASAP.
BRIAN ALLEY (N320WT) CARBON FIBER COMPOSITES
101 Caroline Circle
Hurricane, WV 25526
www.carbonfibercomposites.net
304-562-6800 home
304-395-4932 cell
How are you going to win by a nose if you don't stick out your neck?
--- On Tue, 8/17/10, j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)> wrote:
| Quote: | From: j. davis <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
Subject: Re: positioning right angle AN fittings
To: rv-list(at)matronics.com (rv-list(at)matronics.com)
Date: Tuesday, August 17, 2010, 8:26 PM
--> RV-List message posted by: "j.
davis" <jd(at)lawsonimaging.ca (jd(at)lawsonimaging.ca)>
On 08/16/2010 04:12 AM, StooDDS(at)aol.com (StooDDS(at)aol.com)
wrote:
| Quote: | Best way to handle this is to run the male thread of
|
the fitting into
| Quote: | the appropriate pipe thread die. These are available
|
at the hardware
| Quote: | store. Screw it in by hand until it is tight, then
|
just a little more.
| Quote: | Clean the threads and try it. If you use a tap on the
|
female threads,
| Quote: | the chips are going to fall into the oil
|
cooler-----------
| Quote: | Stewart Willoughby
6,finishing
|
Hmmm, not sure I understand this. These are tapered pipe
fittings, are they not? When tight, there are still exposed
threads. Adding a few more threads with a die wouldn't
change anything, would it?
-- Regards, J.
Sonex #325 C-FJNJ, Jabiru 3300a, Prince P-Tip, Aerocarb
restoring the Johnston Special
http://cleco.ca
+-------------------------------------------------------------+
| J. Davis, M.Sc. | (computer science) |
| *NIX consulting, SysAdmin | email: jd at
lawsonimaging.ca |
+-------------------------------------------------------------+
My uncle's an airline pilot... Kinda makes it difficult
to hold the bottle though.
--- Steven Wright
Forum -
FAQ,
- MATRONICS WEB FORUMS -
List Contribution Web Site -
-Matt
Dralle, List Admin.
|
------------------------------------------------------------------------
Checked by AVG - www.avg.com
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Rob Kochman
RV-10 "Finishing" Kit
Woodinville, WA (near Seattle)
http://kochman.net/N819K
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Rob Kochman
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Woodinville, WA (near Seattle)
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pitts_pilot(at)bellsouth.
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| Posted: Wed Aug 18, 2010 8:47 am Post subject: positioning right angle AN fittings |
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I believe the oil cooler is aluminum, and it's those threads that are moving .... but out toward the big end. Also, I'm talking about over-tightening a couple of times in order to achieve better clocking. Tapered threads don't need to be installed by that 800 Lb gorilla .... as I've seen done. Same for B nuts. ..... no, not beer nuts  .... the nuts on flared fittings. Some folks think a bigger wrench (or hammer) will solve any problem.
And, one problem with over-tightening tapered fittings ..... such as those on the oil cooler .... the boss may split somewhere down the airway, leaving you oiling up the countryside. Seen that too. Done by an IA. Sheesh.
Linn
Rob Kochman wrote: [quote] Seems to work on steel fittings, too (just did my oil cooler a couple weeks ago). Also, by that logic, wouldn't it mean you shouldn't use a fitting more than once (or tighten it down more than once)?
-Rob
On Wed, Aug 18, 2010 at 6:59 AM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
| Quote: | I guess you're talking about an aluminum fitting .... a steel one won't do that. Basically you're cold-flowing the aluminum, stretching the threads down towards the small end and fracturing the aluminum below the threads. Not a good thing. What you can do, as others have suggested is use a tap or die to cut the threads some so they clock where you want them. Jerry has a valid concern, but we're not adding a couple of turns here. The other thing is to use Teflon pipe dope if you can achieve the desired clocking close to 'tight'. If you use the pipe dope, stabilize the hose or tubing attached to the fitting to keep it from moving.
Linn
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Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
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| Posted: Wed Aug 18, 2010 4:33 pm Post subject: positioning right angle AN fittings |
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Anyone mention just trying a different fitting?? They usally clock to different angles when tightened...
?
Mark
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jd(at)lawsonimaging.ca
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| Posted: Fri Aug 20, 2010 4:43 am Post subject: positioning right angle AN fittings |
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On 08/18/2010 08:32 PM, fiveonepw(at)aol.com wrote:
| Quote: | Anyone mention just trying a different fitting? They usally clock to
different angles when tightened...
Mark
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Just wanted to say 'thanks' to all those taking the time to respond. I ended up using
Permatex Form-a-Gasket that I had on my shelf, cleaned each surface well, methyl hydrate,
thin coat on each surface, let it set up well, and so far, so good. Remember, my issue was
the each fitting was just 20-30 degrees too *far*, so trying to go another 330-340 degrees
*tighter* was pretty much out of the question, in my small mind ;')
Thanks again to all.
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