Today's Message Index:
----------------------
1. 03:21 AM - Loose Cylinders (Craig Payne)
2. 05:03 AM - Primer line leak (John Graham)
3. 05:16 AM - Re: Primer line leak (A. Dennis Savarese)
4. 05:31 AM - Re: Re: Help! Need a mechanic in East Texas (A. Dennis Savarese)
5. 11:40 AM - 52 successor? (Bill1200)
6. 02:26 PM - Re: Re: Help! Need a mechanic in East Texas (Kregg Victory)
7. 08:53 PM - Re: Re: Help! Need a mechanic in East Texas (Jon Boede)
8. 08:54 PM - CJ brake adjustment (Jon Boede)
9. 09:01 PM - sputtering on stop (Jon Boede)
Message 1
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Loose cylinders occur on Huosai engines as well as the M-14 variety too. However,
the root problem often turns out to be loose CYLINDER STUDS, not just nuts.
They appear to "back out" while the nut looks intact with tab bent over correctly.
The Chinese type are solid while the Russian type is semi-hollow. The fix I use
on Huosai's is to install the Russian type. In a pinch, use Lock Tight on the
Chinese studs after cleaning out the case threads with carb cleaner and drying
the threads. Also be sure to install a new gasket and cylinder O-ring on the
cylinder as well.
Of course when the cylinder is off, it's then a good time to ..... well you know,
it gets worse from there.
Craig Payne
cpayne@joimail.com
Message 2
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| Subject: | Primer line leak |
While doing a simple engine check with the cowling off after an oil change,
my A&P was watching the starting sequence from the left side of the airpla
ne.- During the priming stage (3 shots), he noticed fuel squirting our of
the primer line on tot he back of the generator.---I am certain had
this occurred on most GA aircraft there very well could have been an engine
fire.- Simple diagnosis - a bad line that had cracked over the years.-
Please make sure you check your primer line (and all other lines) regularl
y as a visual inspection of this line at annual did not reveal this defect.
- A great way to check the primer line (other than visually) is to simply
watch it while someone primes the engine a few shots.- A quick call to J
ill at M-14P, Inc. and a new line was on its way to me same day.-
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (630) 390-9451=0A=0A=0A
Message 3
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| Subject: | Re: Primer line leak |
John,
This is not an uncommon problem with the primer hose on the 52. I have
seen this on several aircraft. For whatever reason, the primer hose
seems to deteriorate more quickly than the other flexible hoses. Most
of the hoses that failed fail closest the end of the hose that attaches
to the firewall. It may be due to a concentration of heat in top, right
rear section of the cowling.
Dennis
----- Original Message -----
From: John Graham
To: Yak list
Sent: Sunday, November 09, 2008 7:01 AM
Subject: Yak-List: Primer line leak
While doing a simple engine check with the cowling off after an
oil change, my A&P was watching the starting sequence from the left side
of the airplane. During the priming stage (3 shots), he noticed fuel
squirting our of the primer line on tot he back of the generator. I am
certain had this occurred on most GA aircraft there very well could have
been an engine fire. Simple diagnosis - a bad line that had cracked
over the years. Please make sure you check your primer line (and all
other lines) regularly as a visual inspection of this line at annual did
not reveal this defect. A great way to check the primer line (other
than visually) is to simply watch it while someone primes the engine a
few shots. A quick call to Jill at M-14P, Inc. and a new line was on
its way to me same day.
John P. Graham
CubFlyer1940@Yahoo.com
Cell phone (630) 390-9451
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3D
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3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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3D
Message 4
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| Subject: | Re: Help! Need a mechanic in East Texas |
Thanks Walt. You beat me to it. Also applies to the M14 cylinders as
well. For those that need it, attached is a torque spec chart.
Dennis
----- Original Message -----
From: Walter Lannon
To: yak-list@matronics.com
Sent: Saturday, November 08, 2008 11:37 PM
Subject: Re: Yak-List: Re: Help! Need a mechanic in East Texas
The cylinder hold down nuts should be torqued to 300/320 in lb (25/26
ft
lb).
Walt
----- Original Message -----
From: "ronald wasson" <ronwasson@mindspring.com>
To: <yak-list@matronics.com>
Sent: Saturday, November 08, 2008 9:04 PM
Subject: Re: Yak-List: Re: Help! Need a mechanic in East Texas
<ronwasson@mindspring.com>
>
> I have had loose cylinders twice on my CJ. It is a low tech time
> consuming fix. You need a metric cylinder base wrench from Doug and
a
> metric crowfoot set. Remove the cowl and find the loose cylinder.
> Anything in the way comes off mostly the spring loaded baffle plates
> between the cylinder. Bend the nut tabs down and tighten to 60
pounds
> or at least good and tight to get you down the road to have it re
> torqued. You can do this. Doug has the base wrenches or even a
metric
> crowfoot should work from Sears. This is as simple as tighten 6
nuts on
> the base of the leaking cylinder and putting the baffling back on.
Clean
> the motor with degreaser or even can engine no foam degreaser from
a
> parts store and check for leaks. This a very common issue on the
CJ. No
> one does it but I was told by an old round motor crop duster that
they
> retorqued every annual and always found a couple nuts loose on a
motor.
> Bob wagstaff is in Houston or 200 plus miles
>
>
> ron
>
>
>
>
>
>
Message 5
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What aircraft is currently the prop trainer for Russian pilots? I tried a web search
and could only find jet trainers
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=213144#213144
Message 6
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| Subject: | Re: Help! Need a mechanic in East Texas |
I have a new stainless slip fit exhaust if you need one.
Kregg Victory
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of N642K
Sent: Saturday, November 08, 2008 5:54 PM
Subject: Yak-List: Re: Help! Need a mechanic in East Texas
Hi Forrest! It's Mike DeCanio. It appeared to be leaking everywhere! Lost
nearly 3 quarts in a 30 minute flight. Jim Selby turned me onto Bill
Talutis here at Tyler. What a gentleman. 3 minute diagnosis = loose
cylinder head. He doesn't have any time to get to it so I'm gonna have to
get somebody to travel here or wait a while to get the plane back. If you
can recommend somebody, I'll listen. Jerry Pockrus is my regular mechanic,
he's at Clark Field. I'm gonna see if he's interested in being a
journeyman.
That extra vibration meant the death of my original exhaust so I'm also in
the market for a stainless system. [Laughing]
Thanks to everybody for your inputs. Really proved the worth of this forum
when somebody could recommend a fellow CJ pilot and A&P at the very field
I'm having diffulculties.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=213076#213076
Message 7
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| Subject: | Re: Help! Need a mechanic in East Texas |
I second the "loose cylinder head" diagnosis... I have had two and both tim
es it lost about three quarts in a 45 minute flight.
> From: kregg@balancemyprop.com
> To: yak-list@matronics.com
> Subject: RE: Yak-List: Re: Help! Need a mechanic in East Texas
> Date: Sun=2C 9 Nov 2008 14:25:28 -0800
>
>
> I have a new stainless slip fit exhaust if you need one.
>
> Kregg Victory
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of N642K
> Sent: Saturday=2C November 08=2C 2008 5:54 PM
> To: yak-list@matronics.com
> Subject: Yak-List: Re: Help! Need a mechanic in East Texas
>
>
> Hi Forrest! It's Mike DeCanio. It appeared to be leaking everywhere! Lo
st
> nearly 3 quarts in a 30 minute flight. Jim Selby turned me onto Bill
> Talutis here at Tyler. What a gentleman. 3 minute diagnosis = loose
> cylinder head. He doesn't have any time to get to it so I'm gonna have t
o
> get somebody to travel here or wait a while to get the plane back. If yo
u
> can recommend somebody=2C I'll listen. Jerry Pockrus is my regular mecha
nic=2C
> he's at Clark Field. I'm gonna see if he's interested in being a
> journeyman.
>
> That extra vibration meant the death of my original exhaust so I'm also i
n
> the market for a stainless system. [Laughing]
>
> Thanks to everybody for your inputs. Really proved the worth of this for
um
> when somebody could recommend a fellow CJ pilot and A&P at the very field
> I'm having diffulculties.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=213076#213076
>
>
>
>
>
>
>
>
>
>
>
>
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>
>
>
Message 8
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| Subject: | CJ brake adjustment |
I have a CJ that doesn't like to turn left.
Tested brake pressure at both left and right wheels = about 150 psi.
Changed brake drums and that seemed to help. Was going to change brake puc
ks but in looking at the current ones=2C the new ones were exactly the same
thickness.
Is there an adjustment to make the brake grab better? Does this mean that
the left bladder is going out? How does one check that?
Thanks=2C
jon
Message 9
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| Subject: | sputtering on stop |
I have a 285 hp CJ that seems (as much as anyone can tell that sort of thin
g) to be running a little rough.
Seems to cough a bit and turns backwards when it stops although that seems
normal for a radial=2C but it seems to be doing it more than it was in the
past.
Adjusted all exhaust valves and compression check turns up 70+ on all cylin
ders cold=2C except #4 that gets about 50 (cold) and is scheduled for a goo
d valve re-lapping.
Wobble pump doesn't seem to do much in this Chang... could that have anythi
ng to do with things?
Thanks=2C
jon
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