Matronics Email Lists Forum Index Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
 
 Get Email Distribution Too!Get Email Distribution Too!    FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

aeroquip

 
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV-List
View previous topic :: View next topic  
Author Message
sportypilot(at)stx.rr.com
Guest





PostPosted: Sat Apr 01, 2006 3:25 pm    Post subject: aeroquip Reply with quote

I have a quick question, I have steel aeroquip hose fittings on my engine
oil in and out fittings and
wanted to know if the aluminum hose fittings will work ok with the steel
fittings.. and also steel on the
oil cooler 7 row vans type.. or will this cause problems ? they are both the
same brand and degree..
just one is half is steel and the hose fitting is aluminum.. any ideas ?

Danny..


- 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
Back to top
jackanet(at)hotmail.com
Guest





PostPosted: Sat Apr 01, 2006 4:02 pm    Post subject: aeroquip Reply with quote

Danny,

No known problem mixing al and steel oil fittings as long as your respect
torque limits... my humble opinion. You may be thinking of dissimilar metal
problems mating copper and aluminum in electrical circuits.

Jack, N-8VZ

Quote:
From: "Sportypilot" <sportypilot(at)stx.rr.com>
Reply-To: rv-list(at)matronics.com
To: <rv-list(at)matronics.com>
Subject: aeroquip
Date: Sat, 1 Apr 2006 17:18:35 -0600


- 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
Back to top
pitts_pilot(at)bellsouth.
Guest





PostPosted: Sat Apr 01, 2006 4:49 pm    Post subject: aeroquip Reply with quote

AFAIK, the only problem occurs with crossthreading ..... easy to do with
steel fittings and aluminum nuts. The prime reason for using steel
under the cowl is it's higher melting point in case of a fire in the
cowl. I'm not a purist here either .... I've used whatever I had on
hand to get the job done.
Linn
do not archive
Sportypilot wrote:

Quote:


I have a quick question, I have steel aeroquip hose fittings on my engine
oil in and out fittings and
wanted to know if the aluminum hose fittings will work ok with the steel
fittings.. and also steel on the
oil cooler 7 row vans type.. or will this cause problems ? they are both the
same brand and degree..
just one is half is steel and the hose fitting is aluminum.. any ideas ?

Danny..










- 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
Back to top
chaztuna(at)adelphia.net
Guest





PostPosted: Sat Apr 01, 2006 5:47 pm    Post subject: aeroquip Reply with quote

Linn,
Steel fittings are used under the cowl more for their resistance to
fatigue. Remember, we have that wet dog named Lycoming sitting up
there, impersonating a paint mixing machine! Smile A cracked aluminum
fitting could get really expensive if an oil or fuel fitting fails in flight.
Charlie Kuss
Quote:


AFAIK, the only problem occurs with crossthreading ..... easy to do with
steel fittings and aluminum nuts. The prime reason for using steel
under the cowl is it's higher melting point in case of a fire in the
cowl. I'm not a purist here either .... I've used whatever I had on
hand to get the job done.
Linn
do not archive
Sportypilot wrote:

>
>
>I have a quick question, I have steel aeroquip hose fittings on my engine
>oil in and out fittings and
>wanted to know if the aluminum hose fittings will work ok with the steel
>fittings.. and also steel on the
>oil cooler 7 row vans type.. or will this cause problems ? they
are both the
>same brand and degree..
>just one is half is steel and the hose fitting is aluminum.. any ideas ?
>
>
>
>Danny..
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>




- 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
Back to top
Larry Bowen



Joined: 09 Jan 2006
Posts: 802
Location: NC, USA

PostPosted: Sat Apr 01, 2006 6:18 pm    Post subject: aeroquip Reply with quote

Mine has worked ok so far. Same setup.

-
Larry Bowen
Larry(at)BowenAero.com
http://BowenAero.com


[quote] --


- 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

_________________
Larry Bowen
RV-8 SOLD,
RV-7QB in progress...
Back to top
View user's profile Send private message Visit poster's website AIM Address MSN Messenger
pitts_pilot(at)bellsouth.
Guest





PostPosted: Sat Apr 01, 2006 6:34 pm    Post subject: aeroquip Reply with quote

Valid point, I guess. I've never seen a cracked aluminum fitting (in my
limited experience) due to vibration . I've balanced a few REALLY
out-of-balance props and have seen stress cracks in aluminum and some
steel. The only AN fittings that were cracked came from a gorilla with
a wrench! In one case, there were impressions left in the flat of the
aluminum nut from the wrench.
Linn
Charlie Kuss wrote:

Quote:


Linn,
Steel fittings are used under the cowl more for their resistance to
fatigue. Remember, we have that wet dog named Lycoming sitting up
there, impersonating a paint mixing machine! Smile A cracked aluminum
fitting could get really expensive if an oil or fuel fitting fails in flight.
Charlie Kuss


>
>
>AFAIK, the only problem occurs with crossthreading ..... easy to do with
>steel fittings and aluminum nuts. The prime reason for using steel
>under the cowl is it's higher melting point in case of a fire in the
>cowl. I'm not a purist here either .... I've used whatever I had on
>hand to get the job done.
>Linn
>do not archive
>Sportypilot wrote:
>
>
>
>>
>>
>>I have a quick question, I have steel aeroquip hose fittings on my engine
>>oil in and out fittings and
>>wanted to know if the aluminum hose fittings will work ok with the steel
>>fittings.. and also steel on the
>>oil cooler 7 row vans type.. or will this cause problems ? they
>>
>>
>are both the
>
>
>>same brand and degree..
>>just one is half is steel and the hose fitting is aluminum.. any ideas ?
>>
>>
>>
>>Danny..
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>









- 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
Back to top
chaztuna(at)adelphia.net
Guest





PostPosted: Sat Apr 01, 2006 7:27 pm    Post subject: aeroquip Reply with quote

Linn,
Yes, improper installation goes a long way towards ruining aluminum
hydraulic fittings. Actually, most certified aircraft use the steel
fitting on anything that actually goes on the engine or moves with
the engine. Items on the firewall don't shake to much.
Charlie
Quote:


Valid point, I guess. I've never seen a cracked aluminum fitting (in my
limited experience) due to vibration . I've balanced a few REALLY
out-of-balance props and have seen stress cracks in aluminum and some
steel. The only AN fittings that were cracked came from a gorilla with
a wrench! In one case, there were impressions left in the flat of the
aluminum nut from the wrench.
Linn
Charlie Kuss wrote:

>
>
>Linn,
> Steel fittings are used under the cowl more for their resistance to
>fatigue. Remember, we have that wet dog named Lycoming sitting up
>there, impersonating a paint mixing machine! Smile A cracked aluminum
>fitting could get really expensive if an oil or fuel fitting fails
in flight.
>Charlie Kuss
>
>
>
>
>>
>>
>>AFAIK, the only problem occurs with crossthreading ..... easy to do with
>>steel fittings and aluminum nuts. The prime reason for using steel
>>under the cowl is it's higher melting point in case of a fire in the
>>cowl. I'm not a purist here either .... I've used whatever I had on
>>hand to get the job done.
>>Linn
>>do not archive
>>Sportypilot wrote:
>>
>>
>>
>>>
>>>
>>>I have a quick question, I have steel aeroquip hose fittings on my engine
>>>oil in and out fittings and
>>>wanted to know if the aluminum hose fittings will work ok with the steel
>>>fittings.. and also steel on the
>>>oil cooler 7 row vans type.. or will this cause problems ? they
>>>
>>>
>>are both the
>>
>>
>>>same brand and degree..
>>>just one is half is steel and the hose fitting is aluminum.. any ideas ?
>>>
>>>
>>>
>>>Danny..
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>




- 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
Back to top
Vanremog(at)aol.com
Guest





PostPosted: Sun Apr 02, 2006 12:39 am    Post subject: aeroquip Reply with quote

In a message dated 4/1/2006 3:26:31 P.M. Pacific Standard Time,
sportypilot(at)stx.rr.com writes:

I have a quick question, I have steel aeroquip hose fittings on my engine
oil in and out fittings and
wanted to know if the aluminum hose fittings will work ok with the steel
fittings.. and also steel on the
oil cooler 7 row vans type.. or will this cause problems ? they are both the
same brand and degree..
just one is half is steel and the hose fitting is aluminum.. any ideas ?

===============================

I used stainless nipple fittings on the engine and aluminum fittings on the
AQP hoses. A light coating of Fuelube on just the sealing facets and threads
probably couldn't hurt (unless you reduce the friction so much that the
fitting vibrates loose) and it may eliminate the galling that can occur even when
using aluminum pipe threads into aluminum.

Once again, the theory is generally to avoid dissimilar metals combinations
that are farthest apart on the galvanic table and keep them dry. It is
possible that, with new fittings, the anodizing may have some galvanic blocking
effect, effectively breaking up the galvanic couple between any dissimilar
parent metals.

GV (RV-6A N1GV O-360-A1A, C/S, Flying 777hrs, Silicon Valley, CA)


- 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
Back to top
Display posts from previous:   
Post new topic   Reply to topic    Matronics Email Lists Forum Index -> RV-List All times are GMT - 8 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Powered by phpBB © 2001, 2005 phpBB Group