Today's Message Index:
----------------------
1. 11:24 AM - Re: Re: HS6A Diaphragms (doug sapp)
2. 01:47 PM - M-14P Cylinder Base Nut Wrench (Byron Fox)
3. 01:54 PM - What is the cylinder torque value for the nuts at the base.? (motoadve)
4. 01:55 PM - Re: M-14P Cylinder Base Nut Wrench (doug sapp)
5. 02:00 PM - Re: M-14P Cylinder Base Nut Wrench (George Coy)
6. 02:09 PM - Re: What is the cylinder torque value for the nuts at the base.? (Warren Hill)
7. 02:22 PM - Re: What is the cylinder torque value for the nuts at the base.? (A. Dennis Savarese)
8. 03:05 PM - Re: Cannot decrease RPM at high speed (JL2A)
9. 06:16 PM - Re: SS new Air tank weights CJ6A (Ttail)
10. 09:25 PM - Re: What is the cylinder torque value for the nuts at the base.? (Walter Lannon)
11. 10:55 PM - Re: What is the cylinder torque value for the nuts at the base. (woodja51)
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| Subject: | Re: HS6A Diaphragms |
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| Subject: | M-14P Cylinder Base Nut Wrench |
I'm in need. Does anyone have one I could acquire?
Thanks
--
... Blitz
Byron M. Fox
415-307-2405
Message 3
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| Subject: | What is the cylinder torque value for the nuts at the base.? |
Had a big oil leak, too big to keep flying, used some dye, and it showed it was
coming from the base of cyl #4 , we checked tightness of the nuts and are loose.
Glad I did not ignored this oil leak.
Does anyone know the torque value needed for the nuts at the base of the cylinder?
--------
www.Backcountry182.com
Cessna 182 P
CJ -6
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489688#489688
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| Subject: | Re: M-14P Cylinder Base Nut Wrench |
Blitz
We have 12 in stock at this time. Contact me off list please,
Doug
On Mon, Jun 17, 2019 at 1:52 PM Byron Fox <byronmfox@gmail.com> wrote:
> I'm in need. Does anyone have one I could acquire?
> Thanks
>
> --
> ... Blitz
>
>
> Byron M. Fox
>
> 415-307-2405
>
>
Message 5
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| Subject: | M-14P Cylinder Base Nut Wrench |
I have a spare I can sell.
George Coy
MotorstarNA
714 Airport Rd.
Swanton VT 05488
802-868-5633 off
802-363-5782 cell
<mailto:george.coy@gmail.com> george.coy@gmail.com
<http://motorstarna.com/> http://motorstarna.com/
SKYPE george.coy
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Byron Fox
Sent: Monday, June 17, 2019 4:46 PM
Subject: Yak-List: M-14P Cylinder Base Nut Wrench
I'm in need. Does anyone have one I could acquire?
Thanks
--
... Blitz
Byron M. Fox
415-307-2405
Message 6
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| Subject: | Re: What is the cylinder torque value for the nuts at the base.? |
According to Jill, the cylinder hold down nuts are 304 - 330 In.-Lbs. with a M10
thread size.
Had some of the base nuts go loose on cylinder #9 last summer. Made a real mess.
Warren Hill
N464TW
Mesa, AZ
> On Jun 17, 2019, at 1:54 PM, motoadve <motoadve@racsa.co.cr> wrote:
>
>
> Had a big oil leak, too big to keep flying, used some dye, and it showed it was
coming from the base of cyl #4 , we checked tightness of the nuts and are loose.
> Glad I did not ignored this oil leak.
>
> Does anyone know the torque value needed for the nuts at the base of the cylinder?
>
> --------
> www.Backcountry182.com
> Cessna 182 P
> CJ -6
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=489688#489688
>
>
>
>
>
>
>
>
>
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| Subject: | Re: What is the cylinder torque value for the nuts at the base.? |
304-330 in/lbs or 25-28 ft/lbs.Dennis
On Monday, June 17, 2019, 4:56:50 PM EDT, motoadve <motoadve@racsa.co.c
r> wrote:
Had a big oil leak, too big to keep flying, used some dye, and it showed it
was coming from the base of cyl #4 , we checked tightness of the nuts and
are loose.
Glad I did not ignored this oil leak.
Does anyone know the torque value needed for the nuts at the base of the cy
linder?
--------
www.Backcountry182.com
Cessna 182 P
CJ -6
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489688#489688
S -
WIKI -
-
=C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin.
Message 8
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| Subject: | Re: Cannot decrease RPM at high speed |
New install.
It is not the low rpm stop setting - it will govern down to 50-60% at low speeds
/ power.
I've read that the whirlwind propellers came with a stronger spring for the governor
to give it more oomph - wondering if the symptoms were the same?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489694#489694
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| Subject: | Re: SS new Air tank weights CJ6A |
In my setup I had a 10Kg ballast bar in the vicinity. I removed that after fitting
the new tanks and get 0.7Kg weight reduction over all.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489699#489699
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| Subject: | Re: What is the cylinder torque value for the nuts at the base.? |
This is actually a very serious problem, with the HS6A engine in particular
ly.
The HS6A is unique to the series in that the crankcase is shot-peened in th
e cylinder mounting flange area. This process is used to inhibit crack dev
elopment in highly stressed areas by effectively increasing the surface are
a.
Strangely enough the process is not used on the M14P crankcase even though
the operational temperature and stresses are, in all probability, consider
ably
higher. This leads one to suspect that the Chinese alum. alloy manufacturi
ng and heat treating processes may leave something to be desired.
A few years ago a gentleman from Namibia posted a photo of a cracked HS6A c
rankcase where the crack surfaces were displaced from each other by somethi
ng like 10 mm. A sure sign of enormous internal stress relieved by the cra
ck. Hopefully that was a one-time occurrence.
In any case shot peening is used and with it comes a new problem.
The cylinder hold down studs are possibly the highest cyclically loaded thr
eaded fasteners on the engine. They need to be stretched on installation t
o a point within their elastic limit where the operational tensile loading
is absorbed without further stretching. Torqueing is a quick and dirty met
hod of establishing that point.
By design shot peening produces a rough surface. Whether too rough for th
e seating surface of the cylinder flange I don=99t, at this point, re
ally know though I suspect not. The factory obviously is concerned and
=9Ccorrects=9D this with a paper shim. This of course over time d
isintegrates leaving you with a loose cylinder and possibly studs stretched
beyond the elastic limit, cracked or broken and a cylinder about to depart
=2E
Notes on torque: The factory wrench for this job, Chinese or Russian, pro
vides absolutely no means to measure the torque value. I weld a nut in the
appropriate location. See attached pic.
I use a LUBRICATED 300 to 320 in./lb. torque.
Walt
From: A. Dennis Savarese
Sent: Monday, June 17, 2019 2:20 PM
Subject: Re: Yak-List: What is the cylinder torque value for the nuts at th
e base.?
304-330 in/lbs or 25-28 ft/lbs.
Dennis
On Monday, June 17, 2019, 4:56:50 PM EDT, motoadve <motoadve@racsa.co.cr> w
rote:
Had a big oil leak, too big to keep flying, used some dye, and it showed it
was coming from the base of cyl #4 , we checked tightness of the nuts and
are loose.
Glad I did not ignored this oil leak.
Does anyone know the torque value needed for the nuts at the base of the cy
linder?
--------
www.Backcountry182.com
Cessna 182 P
CJ -6
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489688#489688
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Message 11
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| Subject: | Re: What is the cylinder torque value for the nuts at the base. |
I bought an electronic torque wrench that beeps when you get close to and the again
when at the correct torque. And used the Chinese spanner with it attached.
I took my nuts up on paper gaskets ( there are aluminium ones there it seems
as standard ?) to 35 lbs which is closer to the values on the m14 I think.
They should always be wet/ lubed for torque setting I believe. I might have slightly
over torqued them but would rather be a little in the high side. Matt
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=489701#489701
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