Today's Message Index:
----------------------
1. 07:03 AM - Re: Brackett Air Filter (Roger Kemp)
2. 02:13 PM - Yak Air Valves (Rico Jaeger)
3. 02:32 PM - Re: Yak Air Valves (Hank Gibson)
4. 02:43 PM - Re: Yak Air Valves (Jon Boede)
5. 03:18 PM - Re: Yak Air Valves (LawnDart)
6. 05:10 PM - Re: Yak Air Valves (Vic)
7. 07:31 PM - Re: Yak Air Valves (Roger Kemp)
8. 10:28 PM - Intake tubage (Jon Boede)
Message 1
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| Subject: | Re: Brackett Air Filter |
Okay, have to plead ignorance. Have not even seen this on a YAK. How does it
attach to the screen?
Doc
Sent from my iPad
> On Aug 28, 2018, at 5:43 PM, Mark Pennington <pennington.construction.inc.
1@gmail.com> wrote:
>
> I don=99t think the 50 hour cycle is over kill.
> Got my M14 powered CJ two years ago.
>
> The bracket filter on the plane was adhered to the wire frame under and ha
d to be soaked off with AV gas.
>
> I also change mine every 50 hours.
>
> Mark
>
>
>
>> On Tue, Aug 28, 2018 at 1:08 PM Warren Hill <k7wx@earthlink.net> wrote:
>> I=99ve used the Brackett filter on the M-14P of my CJ for years. No
significant loss of power noted. Might be over-doing this, but I change it e
very 50 hours.
>>
>> Here's an image of the packaging. As mentioned, this is not listed in the
ir regular catalog.
>>
>> Warren Hill
>> N464TW
>> Mesa, AZ
>>
>>
>> <IMG_6422.jpg>
>>
>>
>>> On Aug 28, 2018, at 2:54 AM, Craig Payne <yakman285@gmail.com> wrote:
>>>
>>> These air filters are simple but do a great job of keeping silica out of
the engine. "Dirt" causes rapid wear in any engine. Off-road racers for exa
mple, depend on them.
>>>
>>> I can't say I ever saw a measurable difference in Manifold Pressure by a
dding a filter but I'm sure there is some loss. For the air racing that I di
d with the CJ, I replaced the whole unit with a ram air duct. I did design a
retro-fit kit for a K&N style filter but it offered no advantage in perform
ance or price.
>>>
>>> Order directly from Brackett, I think it is a B-197, you won't find it l
isted. I have operated from short, turf fields and the best fix for that is a
n M-14P. Suck it up, Go Big or Stay Home.
>>>
>>> BTW, Allen Baker of Gulfport, MS is the new, proud owner of N285CJ, he j
ust got it home on Sunday after several days of sweating out Florida heat tr
aining with Pappy. Pappy hung in there but did look like one tired old dog o
n summer afternoons =F0=9F=98=82
>>>
>>> Craig Payne
>>
Message 2
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Greetings, Aviators and Aviatrixes!
As I continue my (endless) pursuits in identifying and rectifying my emerge
ncy air leak, about the only items remaining untouched are the master air v
alves. After liberating the front valve, I managed to open it up - despite
it's best impressive efforts to remain intact. The only fix I can envision
is lapping / re-seating the needle valve. My question is: Is it common for
these to lose their sealing ability? It would seem to reason that they are
used so little, (and built so robustly) that they shouldn't EVER wear out.
Or is it because they're rarely used that they begin to loosen up? Am I mis
sing part of the picture here? I don't see any seals or anything else that
may be the issue...but despite no audible leak, emergency air is totally de
pleted within several hours. I replaced the bottle and sealed it TIGHTLY. T
he check-valve between the external fill point and the bottle checks out. M
ain air integrity is flawless.
Any ideas / guidance would be mucho appreciato!
Many thanx!
Rico Jaeger
915 S. 11th Ave.
Wausau, WI. 54401
715.529.7426
//
1969 Cessna 150J ^/---//-X
N61333 //
Hangar #35 / AUW
//
1992 Yakovlev Yak 52 ^/---//-X
N21YK //
Hangar #21 / AUW
Message 3
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| Subject: | Re: Yak Air Valves |
Rico- suggest you remove old Emer and Main valves with new SS valves from S
wagelok. Procedure attached.
Hoot
Sent from my iPhone
> On Aug 29, 2018, at 5:01 PM, Rico Jaeger <rocknpilot@hotmail.com> wrote:
>
> Greetings, Aviators and Aviatrixes!
>
> As I continue my (endless) pursuits in identifying and rectifying my emerg
ency air leak, about the only items remaining untouched are the master air v
alves. After liberating the front valve, I managed to open it up - despite i
t's best impressive efforts to remain intact. The only fix I can envision is
lapping / re-seating the needle valve. My question is: Is it common for the
se to lose their sealing ability? It would seem to reason that they are used
so little, (and built so robustly) that they shouldn't EVER wear out. Or is
it because they're rarely used that they begin to loosen up? Am I missing p
art of the picture here? I don't see any seals or anything else that may be t
he issue...but despite no audible leak, emergency air is totally depleted wi
thin several hours. I replaced the bottle and sealed it TIGHTLY. The check-v
alve between the external fill point and the bottle checks out. Main air int
egrity is flawless.
>
> Any ideas / guidance would be mucho appreciato!
>
> Many thanx!
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1969 Cessna 150J ^/---//-X
> N61333 //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
Message 4
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| Subject: | Re: Yak Air Valves |
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Message 5
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| Subject: | Re: Yak Air Valves |
In almost 20 years, the only leaks I have had on the emergency side were at the
emergency valves in the cockpits. There is a square o-ring, #6 in the attachment;
this has always been the offender.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482782#482782
Attachments:
http://forums.matronics.com//files/e_valve_186.jpg
Message 6
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| Subject: | Re: Yak Air Valves |
Hi Rico,
how did you check for leaks, with soapy water foam ? Did you check the hose to
the pressure indicator plus this instrument itself ? We had same problem on the
18 T but in fact it was the hose, decades old and never replaced. Since we do
not loose ANY pressure for half a year. Main air is OK in the tank when valve
is closed but air in the tubes drops in a few hours. No need for square o-rings
anywhere but standard o-rings with big enough cross sections do it - BUT all
faces must be smooth, no scratches or rust there so the o-ring has a chance
to seal on them.
Vic
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482784#482784
Message 7
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| Subject: | Re: Yak Air Valves |
Rico,
The Bobbin in the ER shut off valve will rust allowing it to leak.
Doc
Sent from my iPad
> On Aug 29, 2018, at 4:01 PM, Rico Jaeger <rocknpilot@hotmail.com> wrote:
>
> Greetings, Aviators and Aviatrixes!
>
> As I continue my (endless) pursuits in identifying and rectifying my emerg
ency air leak, about the only items remaining untouched are the master air v
alves. After liberating the front valve, I managed to open it up - despite i
t's best impressive efforts to remain intact. The only fix I can envision is
lapping / re-seating the needle valve. My question is: Is it common for the
se to lose their sealing ability? It would seem to reason that they are used
so little, (and built so robustly) that they shouldn't EVER wear out. Or is
it because they're rarely used that they begin to loosen up? Am I missing p
art of the picture here? I don't see any seals or anything else that may be t
he issue...but despite no audible leak, emergency air is totally depleted wi
thin several hours. I replaced the bottle and sealed it TIGHTLY. The check-v
alve between the external fill point and the bottle checks out. Main air int
egrity is flawless.
>
> Any ideas / guidance would be mucho appreciato!
>
> Many thanx!
>
> Rico Jaeger
> 915 S. 11th Ave.
> Wausau, WI. 54401
> 715.529.7426
> //
> 1969 Cessna 150J ^/---//-X
> N61333 //
> Hangar #35 / AUW
> //
> 1992 Yakovlev Yak 52 ^/---//-X
> N21YK //
> Hangar #21 / AUW
>
>
Message 8
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Swap the carb - easy peasy.
Get the #5 intake tube to go back in - %#$&@!!
Anybody have a trick they want to share? Does the tube go in first and you work
the rubber ring in after, or is (supposedly) easier to start with the rubber
ring at the top of the tube and slide the tube in through it?
Jon
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