Today's Message Index:
----------------------
1. 02:46 AM - Fuel connection layout (rweber)
2. 03:04 AM - Re: Fuel connection layout (Richard Goode)
3. 05:32 AM - Re: Fuel connection layout (George Coy)
4. 05:50 AM - Re: Fuel connection layout (Richard Goode)
5. 09:24 PM - Re: Fuel connection layout (Walter Lannon)
Message 1
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| Subject: | Fuel connection layout |
Hello all,
first a friendly hello to you all, I'm new to this forum. My name is Robert and
I'm from the south of Bavaria.
I have been the proud owner of an M462RF for a couple of weeks now. It's not intended
for use in an aircraft, but it should run on a test stand for demonstration
purposes. Construction is progressing well, but I'm not entirely sure about
the routing of the fuel lines. As far as I understand, the path is from the
tank to the fuel pump and on to the carburetor. I also have a connection for
the pressure gauge on the carburetor and a drain connection on the fuel pump.
What I am missing is a connection for a return line (from the carburetor?) though
some kind of flow throttle back to the tank. Or is that not necessary?
with kind regards,
Robert
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501309#501309
Message 2
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| Subject: | Fuel connection layout |
Yes, the design of these carburettors is that they accept fuel until they are full
in the fuel chamber and then the excess returns to the tank, and this should
be plumbed in in this fashion, otherwise too much fuel will be in the carburettor
and causing a mixture that is too rich. The larger connection is the primary
supply from the fuel pump and then the smaller connection is a return to
the tank.
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode@russianaeros.com
www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
In partnership with Aerometal Kft, Hungary.
-----Original Message-----
From: owner-m14pengines-list-server@matronics.com <owner-m14pengines-list-server@matronics.com>
On Behalf Of rweber
Sent: 08 April 2021 10:46
Subject: M14PEngines-List: Fuel connection layout
Hello all,
first a friendly hello to you all, I'm new to this forum. My name is Robert and
I'm from the south of Bavaria.
I have been the proud owner of an M462RF for a couple of weeks now. It's not intended
for use in an aircraft, but it should run on a test stand for demonstration
purposes. Construction is progressing well, but I'm not entirely sure about
the routing of the fuel lines. As far as I understand, the path is from the
tank to the fuel pump and on to the carburetor. I also have a connection for
the pressure gauge on the carburetor and a drain connection on the fuel pump.
What I am missing is a connection for a return line (from the carburetor?) though
some kind of flow throttle back to the tank. Or is that not necessary?
with kind regards,
Robert
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=501309#501309
Message 3
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| Subject: | Re: Fuel connection layout |
Richard, I beg to differ with you on this particular engine. It is an M4 62 which
is basically at AI 14 engine with M 14 P cylinders. As you probably realize
the AI 14 did not have a fuel return system. The fuel pump has a regulated pressure
and thats all its needed. None of the yak 12s, PZL 101s Wilgas etc. had
any fuel return system. There was a hard line between the outlet of the fuel
pump in the inlet of the carburetor. The only other connection to the carburetor
was for the fuel pressure.
In my experience The fuel return system was for aerobatic aircraft and was more
to remove air bubbles from the system.
George Coy
Sent from my iPhone
> On Apr 8, 2021, at 6:09 AM, Richard Goode <Richard.goode@russianaeros.com> wrote:
>
>
> Yes, the design of these carburettors is that they accept fuel until they are
full in the fuel chamber and then the excess returns to the tank, and this should
be plumbed in in this fashion, otherwise too much fuel will be in the carburettor
and causing a mixture that is too rich. The larger connection is the
primary supply from the fuel pump and then the smaller connection is a return
to the tank.
>
>
> RICHARD GOODE AEROBATICS
> Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
> Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
> e-mail: richard.goode@russianaeros.com
> www.russianaeros.com
> WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
> In partnership with Aerometal Kft, Hungary.
>
> -----Original Message-----
> From: owner-m14pengines-list-server@matronics.com <owner-m14pengines-list-server@matronics.com>
On Behalf Of rweber
> Sent: 08 April 2021 10:46
> To: m14pengines-list@matronics.com
> Subject: M14PEngines-List: Fuel connection layout
>
>
> Hello all,
>
> first a friendly hello to you all, I'm new to this forum. My name is Robert and
I'm from the south of Bavaria.
>
> I have been the proud owner of an M462RF for a couple of weeks now. It's not
intended for use in an aircraft, but it should run on a test stand for demonstration
purposes. Construction is progressing well, but I'm not entirely sure about
the routing of the fuel lines. As far as I understand, the path is from the
tank to the fuel pump and on to the carburetor. I also have a connection for
the pressure gauge on the carburetor and a drain connection on the fuel pump.
>
> What I am missing is a connection for a return line (from the carburetor?) though
some kind of flow throttle back to the tank. Or is that not necessary?
>
> with kind regards,
> Robert
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=501309#501309
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 4
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| Subject: | Fuel connection layout |
Agreed I'm happy to stand corrected I was only thinking of the M 14 engine.
RICHARD GOODE AEROBATICS
Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
e-mail: richard.goode@russianaeros.com
www.russianaeros.com
WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
In partnership with Aerometal Kft, Hungary.
-----Original Message-----
From: owner-m14pengines-list-server@matronics.com <owner-m14pengines-list-server@matronics.com>
On Behalf Of George Coy
Sent: 08 April 2021 13:32
Subject: Re: M14PEngines-List: Fuel connection layout
--> <george.coy@gmail.com>
Richard, I beg to differ with you on this particular engine. It is an M4 62 which
is basically at AI 14 engine with M 14 P cylinders. As you probably realize
the AI 14 did not have a fuel return system. The fuel pump has a regulated pressure
and thats all its needed. None of the yak 12s, PZL 101s Wilgas etc. had
any fuel return system. There was a hard line between the outlet of the fuel
pump in the inlet of the carburetor. The only other connection to the carburetor
was for the fuel pressure.
In my experience The fuel return system was for aerobatic aircraft and was more
to remove air bubbles from the system.
George Coy
Sent from my iPhone
> On Apr 8, 2021, at 6:09 AM, Richard Goode <Richard.goode@russianaeros.com> wrote:
>
> <richard.goode@russianaeros.com>
>
> Yes, the design of these carburettors is that they accept fuel until they are
full in the fuel chamber and then the excess returns to the tank, and this should
be plumbed in in this fashion, otherwise too much fuel will be in the carburettor
and causing a mixture that is too rich. The larger connection is the
primary supply from the fuel pump and then the smaller connection is a return
to the tank.
>
>
> RICHARD GOODE AEROBATICS
> Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
> Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
> e-mail: richard.goode@russianaeros.com www.russianaeros.com WORLD
> LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES In partnership with
> Aerometal Kft, Hungary.
>
> -----Original Message-----
> From: owner-m14pengines-list-server@matronics.com
> <owner-m14pengines-list-server@matronics.com> On Behalf Of rweber
> Sent: 08 April 2021 10:46
> To: m14pengines-list@matronics.com
> Subject: M14PEngines-List: Fuel connection layout
>
> --> <rweber@easy-surf.net>
>
> Hello all,
>
> first a friendly hello to you all, I'm new to this forum. My name is Robert and
I'm from the south of Bavaria.
>
> I have been the proud owner of an M462RF for a couple of weeks now. It's not
intended for use in an aircraft, but it should run on a test stand for demonstration
purposes. Construction is progressing well, but I'm not entirely sure about
the routing of the fuel lines. As far as I understand, the path is from the
tank to the fuel pump and on to the carburetor. I also have a connection for
the pressure gauge on the carburetor and a drain connection on the fuel pump.
>
> What I am missing is a connection for a return line (from the carburetor?) though
some kind of flow throttle back to the tank. Or is that not necessary?
>
> with kind regards,
> Robert
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=501309#501309
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 5
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| Subject: | Re: Fuel connection layout |
George, Richard;
Please enlighten me regarding fuel return from the M14 carb. I had not yet
seen such an item nor can I find anything that even resembles a fuel return
outlet.
I closely examined 3 M14P's today including a new, never flown, Series 2
which I am currently installing on a CJ6.
Negative; Fuel intake wise they are all identical. The only "fuel return"
is to the pressure indicating system and that of course comes from the fuel
pump, not the carburetor.
What would be the purpose of a carburetor fuel return given that the
standard rotary fuel pump relief valve by-passes all excess fuel internally?
Best;
Walt
-----Original Message-----
From: George Coy
Sent: Thursday, April 08, 2021 5:31 AM
Subject: Re: M14PEngines-List: Fuel connection layout
Richard, I beg to differ with you on this particular engine. It is an M4 62
which is basically at AI 14 engine with M 14 P cylinders. As you probably
realize the AI 14 did not have a fuel return system. The fuel pump has a
regulated pressure and thats all its needed. None of the yak 12s, PZL 101s
Wilgas etc. had any fuel return system. There was a hard line between the
outlet of the fuel pump in the inlet of the carburetor. The only other
connection to the carburetor was for the fuel pressure.
In my experience The fuel return system was for aerobatic aircraft and was
more to remove air bubbles from the system.
George Coy
Sent from my iPhone
> On Apr 8, 2021, at 6:09 AM, Richard Goode <Richard.goode@russianaeros.com>
> wrote:
>
> <richard.goode@russianaeros.com>
>
> Yes, the design of these carburettors is that they accept fuel until they
> are full in the fuel chamber and then the excess returns to the tank, and
> this should be plumbed in in this fashion, otherwise too much fuel will be
> in the carburettor and causing a mixture that is too rich. The larger
> connection is the primary supply from the fuel pump and then the smaller
> connection is a return to the tank.
>
>
> RICHARD GOODE AEROBATICS
> Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK
> Tel: +44 (0)1544 340120 Fax: +44 (0)1544 340129
> e-mail: richard.goode@russianaeros.com
> www.russianaeros.com
> WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES
> In partnership with Aerometal Kft, Hungary.
>
> -----Original Message-----
> From: owner-m14pengines-list-server@matronics.com
> <owner-m14pengines-list-server@matronics.com> On Behalf Of rweber
> Sent: 08 April 2021 10:46
> To: m14pengines-list@matronics.com
> Subject: M14PEngines-List: Fuel connection layout
>
>
> Hello all,
>
> first a friendly hello to you all, I'm new to this forum. My name is
> Robert and I'm from the south of Bavaria.
>
> I have been the proud owner of an M462RF for a couple of weeks now. It's
> not intended for use in an aircraft, but it should run on a test stand for
> demonstration purposes. Construction is progressing well, but I'm not
> entirely sure about the routing of the fuel lines. As far as I understand,
> the path is from the tank to the fuel pump and on to the carburetor. I
> also have a connection for the pressure gauge on the carburetor and a
> drain connection on the fuel pump.
>
> What I am missing is a connection for a return line (from the carburetor?)
> though some kind of flow throttle back to the tank. Or is that not
> necessary?
>
> with kind regards,
> Robert
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=501309#501309
>
>
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