Today's Message Index:
----------------------
1. 04:07 AM - Re: Climb-out RPM (AlbertaIV@aol.com)
2. 04:48 AM - Re: fuel shutoff (Steve Zakreski)
3. 07:00 AM - Re: fuel shutoff (Chenoweth)
4. 07:00 AM - Re: fuel shutoff (Chenoweth)
5. 09:04 AM - Re: fuel shutoff (AlbertaIV@aol.com)
6. 02:26 PM - Re: fuel shutoff (Chenoweth)
7. 06:54 PM - Re: fuel shutoff (Steve Zakreski)
8. 08:24 PM - (Zimmermans)
Message 1
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| Subject: | Re: Climb-out RPM |
--> Kitfox-List message posted by: AlbertaIV@aol.com
In a message dated 6/10/2005 9:51:45 PM Eastern Standard Time,
spaghettiohead@hotmail.com writes:
Back to the GSC prop pitch issue -
I climb out at about 6400 RPM on the 582 - and this is really hauling back
on the stick, climbing an easy 45 degrees at 45 mph. I can easily reach
6800 at WOT in level flight, so I think I should probably add just a little
bit more pitch to the prop - I don't need to be running that high...Any
comments or suggestions? :)
Andrew
Andrew,
Climbing at 45 is too close to stall. Your best rate of climb should be
somewhere around 55. You should reach 6800 at full throttle in level flight
but not over. If you are going over 6800, add a little pitch.
Don Smythe
Classic IV w/ 582
Message 2
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--> Kitfox-List message posted by: Steve Zakreski <szakreski@shaw.ca>
Hmm. I have had the same valves in my system for 4 years with no hint of
stiffness. What kind of fuel are you using? Maybe you could consider
changing fuel brands. How about flushing the fuel, cleaning the system, and
starting with fresh fuel. Something funny going on.
SteveZ
Calgary
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Chenoweth
Subject: Kitfox-List: fuel shutoff
--> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
Here are some questions I hope someone(s) on the list can help me with.
For the third or fourth time in four years my fuel shutoff has become so
difficult to turn that I've had to disassemble and clean it.
It's the one provided in the '95 firewall forward kit with the viton o-rings
(which I have replaced a couple of times).
.
I lubricate it with fuel lube but although it operates smoothly for the
first weeks/months it gradually becomes stiff. When I cleaned it today the
gum (residue from the fuel lube, I suppose) was not tan but a blue green.
A year or so ago John McBean suggested that I just leave it in the "On"
position and that's what I've been doing. I have the small red-handled
shutoffs in the lines from the wing tanks to the header and I used them for
shutoffs. They don't manifest the stiffness problem and work well.
As a further complication the o-ring that seals the intake (or output (mine
is currently oriented to seal the output)) valve port is getting chewed a
bit by, I presume, the lip of the port.
I've essentially "solved" the problem by not considering the valve to be a
functioning part of the fuel system but that isn't a particularly
satisfactory solution.
Am I the only one with this problem?
Does anyone know why this is happening?
Is there a cure?
Bill in Maine
IV-1200
Message 3
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| Subject: | Re: fuel shutoff |
--> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
Rick,
Not sure what a kerosene stove shut off would look like but this one doesn't
look like any I've seen on any plane (except Kitfoxes) or other devices.
I'll check sportflight.
Thanks.
Bill
----- Original Message -----
From: "Rick" <turboflyer@comcast.net>
Subject: RE: Kitfox-List: fuel shutoff
> --> Kitfox-List message posted by: "Rick" <turboflyer@comcast.net>
>
> If its the one that looks like it belongs on a kerosene stove then its
just
> a POC. I replaced mine years ago with the Adiar. See sportflight upload.
No
> problems.
>
> Rick
>
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com]On Behalf Of Chenoweth
> To: kitfox-list@matronics.com
> Subject: Kitfox-List: fuel shutoff
>
>
> --> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
>
> Here are some questions I hope someone(s) on the list can help me with.
>
> For the third or fourth time in four years my fuel shutoff has become so
> difficult to turn that I've had to disassemble and clean it.
> It's the one provided in the '95 firewall forward kit with the viton
o-rings
> (which I have replaced a couple of times).
> .
> I lubricate it with fuel lube but although it operates smoothly for the
> first weeks/months it gradually becomes stiff. When I cleaned it today
the
> gum (residue from the fuel lube, I suppose) was not tan but a blue green.
>
> A year or so ago John McBean suggested that I just leave it in the "On"
> position and that's what I've been doing. I have the small red-handled
> shutoffs in the lines from the wing tanks to the header and I used them
for
> shutoffs. They don't manifest the stiffness problem and work well.
>
> As a further complication the o-ring that seals the intake (or output
(mine
> is currently oriented to seal the output)) valve port is getting chewed a
> bit by, I presume, the lip of the port.
>
> I've essentially "solved" the problem by not considering the valve to be a
> functioning part of the fuel system but that isn't a particularly
> satisfactory solution.
>
>
> Am I the only one with this problem?
> Does anyone know why this is happening?
> Is there a cure?
>
> Bill in Maine
> IV-1200
>
>
Message 4
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| Subject: | Re: fuel shutoff |
--> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
Don,
Sounds like my valve. Thanks very much for the great advice. I'll see what
I can find at the local Home Depot. The only problem I would anticipate is
that in my plane the valve is set up for 3/8 in, 1/4 out, and the primer
take-off. How did you handle that?
Bill
----- Original Message -----
From: <AlbertaIV@aol.com>
Subject: Re: Kitfox-List: fuel shutoff
> --> Kitfox-List message posted by: AlbertaIV@aol.com
>
>
> In a message dated 6/10/2005 6:58:54 PM Eastern Standard Time,
> chenoweth@gwi.net writes:
>
>
> For the third or fourth time in four years my fuel shutoff has become so
> difficult to turn that I've had to disassemble and clean it.
> It's the one provided in the '95 firewall forward kit with the viton
o-rings
> (which I have replaced a couple of times).
>
>
> I have the same vintage Kitfox. The valve I received in the kit had a
> rotating cylinder with ports. Around the ports were "O" rings. This
particular
> valve was a topic of debate way back then. In at least one case, the
"O"
> rings tore and found themselves traveling down the fuel line causing fuel
> stoppage. If we are talking about the same valve, simple get rid of it.
I seem to
> remember the valve having a brown plastic cylinder with grooves cut for
the
> "O" rings. I took my valve into a group of Engineers that were working
fuel
> systems and their comment was, "They wouldn't put it on their lawnmower"
> You can purchase a 90 degree ball valve at just about any place for
$4.
> These valves are ball and seat type construction and hold up well. I've
had
> one installed in my fox (purchased at Lowes) for 5+ years. It has never
> leaked a drop nor has it ever been hard to operate. Just make sure the
valve is
> rated "WOT" (marked on the handle). This stands for Water, Oil, Gas.
> The problem isn't with the Viton "O" rings, it's the fact that the
"O"
> rings rotate with the cylinder each time you turn it. They wear and can
be
> cut.
> That is, if we are talking about the same little valve and I bet we
are.
>
>
> Don Smythe
> Classic IV w/ 582
>
>
Message 5
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| Subject: | Re: fuel shutoff |
--> Kitfox-List message posted by: AlbertaIV@aol.com
In a message dated 6/11/2005 10:01:37 AM Eastern Standard Time,
chenoweth@gwi.net writes:
Don,
Sounds like my valve. Thanks very much for the great advice. I'll see what
I can find at the local Home Depot. The only problem I would anticipate is
that in my plane the valve is set up for 3/8 in, 1/4 out, and the primer
take-off. How did you handle that?
Bill
I have a very similar setup. My input to the valve is 3/8" (polyurethane)
with 1/4" out (polyurethane). I purchased a valve that was either 1/4 or 3/8
(forget) that had female threads on both sides side. I installed a 3/8 barb
on the input and a 1/4 barb on the output. I cut the 5/16" alum fuel supply
line from the header to the valve near the valve. Put a short piece of 3/8"
Poly over the alum tube with double hose clamps. Then just hook up Poly to
barbs. For the primer, I put a "T" in the 1/4" outlet Poly.
If you have a Spruce catalog, go to the fuel valves and look at part #
05-23325 (1/4"). Listed as "Miniature Fuel Valves" with ball and Teflon
seats. Notice cost is over $20. This same "type" valve is sold at Lowes and
Such for about $4. Problem with these valves is, they don't have a good way of
mounting so you would have to get a little creative (maybe an Adel clamp at
input/output).
I think any good ball and seat type valve for "Gasoline" will work.
Make sure the valve has WOG (water, oil, gas) stamped on the handle. However,
I
think the G might really stand for natural Gas but mine has never leaked
with Gasoline. I had two of these installed at the wing tank outlets but
removed them when doing a weight reduction effort. Wish I had them back.
Don Smythe
Classic IV w/ 582
Message 6
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| Subject: | Re: fuel shutoff |
--> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
Steve,
Perhaps the fuel but I kinda doubt it. I use 93 octane auto gas from a high
volume
dealer, filter every drop that goes into the tanks, and have a filter
between the tank and the valve.
However, this leads me to ask if you are using fuel lube in your valve. I
have occasionally wondered if some kind of reaction between autogas and fuel
lube is my culprit for the stickiness.
Bill
----- Original Message -----
From: "Steve Zakreski" <szakreski@shaw.ca>
Subject: RE: Kitfox-List: fuel shutoff
> --> Kitfox-List message posted by: Steve Zakreski <szakreski@shaw.ca>
>
> Hmm. I have had the same valves in my system for 4 years with no hint of
> stiffness. What kind of fuel are you using? Maybe you could consider
> changing fuel brands. How about flushing the fuel, cleaning the system,
and
> starting with fresh fuel. Something funny going on.
>
> SteveZ
> Calgary
>
>
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Chenoweth
> To: kitfox-list@matronics.com
> Subject: Kitfox-List: fuel shutoff
>
> --> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
>
> Here are some questions I hope someone(s) on the list can help me with.
>
> For the third or fourth time in four years my fuel shutoff has become so
> difficult to turn that I've had to disassemble and clean it.
> It's the one provided in the '95 firewall forward kit with the viton
o-rings
> (which I have replaced a couple of times).
> .
> I lubricate it with fuel lube but although it operates smoothly for the
> first weeks/months it gradually becomes stiff. When I cleaned it today
the
> gum (residue from the fuel lube, I suppose) was not tan but a blue green.
>
> A year or so ago John McBean suggested that I just leave it in the "On"
> position and that's what I've been doing. I have the small red-handled
> shutoffs in the lines from the wing tanks to the header and I used them
for
> shutoffs. They don't manifest the stiffness problem and work well.
>
> As a further complication the o-ring that seals the intake (or output
(mine
> is currently oriented to seal the output)) valve port is getting chewed a
> bit by, I presume, the lip of the port.
>
> I've essentially "solved" the problem by not considering the valve to be a
> functioning part of the fuel system but that isn't a particularly
> satisfactory solution.
>
>
> Am I the only one with this problem?
> Does anyone know why this is happening?
> Is there a cure?
>
> Bill in Maine
> IV-1200
>
>
Message 7
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--> Kitfox-List message posted by: Steve Zakreski <szakreski@shaw.ca>
What do you mean by fuel lube? If you mean 2-stroke oil, I have a 4-stroke,
so that could be a culprit.
SteveZ
IV/NSI/CAP
Calgary
-----Original Message-----
From: owner-kitfox-list-server@matronics.com
[mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Chenoweth
Subject: Re: Kitfox-List: fuel shutoff
--> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
Steve,
Perhaps the fuel but I kinda doubt it. I use 93 octane auto gas from a high
volume
dealer, filter every drop that goes into the tanks, and have a filter
between the tank and the valve.
However, this leads me to ask if you are using fuel lube in your valve. I
have occasionally wondered if some kind of reaction between autogas and fuel
lube is my culprit for the stickiness.
Bill
----- Original Message -----
From: "Steve Zakreski" <szakreski@shaw.ca>
Subject: RE: Kitfox-List: fuel shutoff
> --> Kitfox-List message posted by: Steve Zakreski <szakreski@shaw.ca>
>
> Hmm. I have had the same valves in my system for 4 years with no hint of
> stiffness. What kind of fuel are you using? Maybe you could consider
> changing fuel brands. How about flushing the fuel, cleaning the system,
and
> starting with fresh fuel. Something funny going on.
>
> SteveZ
> Calgary
>
>
> -----Original Message-----
> From: owner-kitfox-list-server@matronics.com
> [mailto:owner-kitfox-list-server@matronics.com] On Behalf Of Chenoweth
> To: kitfox-list@matronics.com
> Subject: Kitfox-List: fuel shutoff
>
> --> Kitfox-List message posted by: "Chenoweth" <chenoweth@gwi.net>
>
> Here are some questions I hope someone(s) on the list can help me with.
>
> For the third or fourth time in four years my fuel shutoff has become so
> difficult to turn that I've had to disassemble and clean it.
> It's the one provided in the '95 firewall forward kit with the viton
o-rings
> (which I have replaced a couple of times).
> .
> I lubricate it with fuel lube but although it operates smoothly for the
> first weeks/months it gradually becomes stiff. When I cleaned it today
the
> gum (residue from the fuel lube, I suppose) was not tan but a blue green.
>
> A year or so ago John McBean suggested that I just leave it in the "On"
> position and that's what I've been doing. I have the small red-handled
> shutoffs in the lines from the wing tanks to the header and I used them
for
> shutoffs. They don't manifest the stiffness problem and work well.
>
> As a further complication the o-ring that seals the intake (or output
(mine
> is currently oriented to seal the output)) valve port is getting chewed a
> bit by, I presume, the lip of the port.
>
> I've essentially "solved" the problem by not considering the valve to be a
> functioning part of the fuel system but that isn't a particularly
> satisfactory solution.
>
>
> Am I the only one with this problem?
> Does anyone know why this is happening?
> Is there a cure?
>
> Bill in Maine
> IV-1200
>
>
Message 8
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--> Kitfox-List message posted by: "Zimmermans" <jezim@pro-ns.net>
Anyone have a series 5 with a Continental C-90? How does it preform? Also with
a Continental is there enough head pressure from the fuel tanks to supply the
carb. when the header tank is behind the seat. Just starting to build. Thanks
Jim
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