Today's Message Index:
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1. 01:26 PM - Re: Silencer position in cowl (david park)
2. 02:36 PM - Re: John Hurst at Sebring (rampil)
3. 03:54 PM - Re: Silencer position in cowl (ALAN YERLY)
4. 05:32 PM - Re: Silencer position in cowl (Keith Hickling)
Message 1
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Subject: | Silencer position in cowl |
Hi Keith,
Yes my silencer sits in a similar place but there is about a 1cm gap betwee
n the bottom of the silencer and the lower cowl you describe. It is near th
e edge of the curve downwards and I am hoping there is enough clearance as
the engine vibration forces I expect are going to be mostly rotational?. I
have taken the outlet pipe out just above the recessed area., If there is
a problem later the cowl will have to be modified with a bubble later.
Let me know if you find an alternate remedy!
Regards Dave Park, Manchester UK
t: Europa-List: Silencer position in cowlTo: europa-list@matronics.com
Hello all,
The silencer (muffler) on my XS / 912 uls (the new oval section silencer) s
its forward of the moulded recess in the cowl. The front of the silencer is
touching the cowl on the outboard side, forward of the recess. The straigh
t outlet pipe from the silencer would exit several cm above the moulded rec
ess. The silencer could not move any further back, as it has only a few mm
clearance from the bottom attachment of the ring mount. Photo attached.
I presume this is a result of having the oval section silencer instead of t
he round section one. Have others had this problem, and if so what have you
done?
Keith Hickling,
New Zealand.
Message 2
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Subject: | Re: John Hurst at Sebring |
Hi All,
John is the Sales Manager for Light Sport Aircraft at Lockwood for
something more than a year now. It was heartening for me to see
him land on his feet after being screwed like so many others in our
community by "he who shall not be named."
This new job keeps him pretty busy, but I have noticed he is still happy
to see Europaphiles! (We still do a lot of business with Lockwood for
Rotax parts, etc!)
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=159851#159851
Message 3
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Subject: | Re: Silencer position in cowl |
Keith,
The new mufflers occasionally get very close as yours has. I've had to
modify two cowls in the shop. My problem is usually with the motor
mount placement and cowl fit. The farther aft the cowl, the closer the
exhaust. I have gotten away with moving the cowl to the starboard once
but don't count on being that lucky. Take care you don't force it out
of alignment and cause an exhaust leak.
My solution is to cut a hole and take the intake bump on the port side
and extend it to the 914 cowl bulge for the round muffler. It's a half
day job over a weekend. Cut the cowl, add foam to contour. Glass the
outside, let cure, cut out the foam, and glass the inside. Put firewall
material (aluminum/stainless with heat barrier between, sold at Aircraft
Spruce for a fortune) then finish.
Bud Yerly
Custom Flight Creations
----- Original Message -----
From: Keith Hickling<mailto:keithhickling@clear.net.nz>
To: Eurpoa List<mailto:europa-list@matronics.com>
Sent: Monday, January 21, 2008 6:54 PM
Subject: Europa-List: Silencer position in cowl
Hello all,
The silencer (muffler) on my XS / 912 uls (the new oval section
silencer) sits forward of the moulded recess in the cowl. The front of
the silencer is touching the cowl on the outboard side, forward of the
recess. The straight outlet pipe from the silencer would exit several cm
above the moulded recess. The silencer could not move any further back,
as it has only a few mm clearance from the bottom attachment of the ring
mount. Photo attached.
I presume this is a result of having the oval section silencer instead
of the round section one. Have others had this problem, and if so what
have you done?
Keith Hickling,
New Zealand.
Message 4
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Subject: | Re: Silencer position in cowl |
Bud, Steve and David,
Many thanks for your advice. I'll cut a hole and reglass the cowl. Good
to know I haven't made a goof somewhere!
Regards,
Keith
----- Original Message -----
From: ALAN YERLY
To: europa-list@matronics.com
Sent: Wednesday, January 23, 2008 12:47 PM
Subject: Re: Europa-List: Silencer position in cowl
Keith,
The new mufflers occasionally get very close as yours has. I've had
to modify two cowls in the shop. My problem is usually with the motor
mount placement and cowl fit. The farther aft the cowl, the closer the
exhaust. I have gotten away with moving the cowl to the starboard once
but don't count on being that lucky. Take care you don't force it out
of alignment and cause an exhaust leak.
My solution is to cut a hole and take the intake bump on the port side
and extend it to the 914 cowl bulge for the round muffler. It's a half
day job over a weekend. Cut the cowl, add foam to contour. Glass the
outside, let cure, cut out the foam, and glass the inside. Put firewall
material (aluminum/stainless with heat barrier between, sold at Aircraft
Spruce for a fortune) then finish.
Bud Yerly
Custom Flight Creations
----- Original Message -----
From: Keith Hickling
To: Eurpoa List
Sent: Monday, January 21, 2008 6:54 PM
Subject: Europa-List: Silencer position in cowl
Hello all,
The silencer (muffler) on my XS / 912 uls (the new oval section
silencer) sits forward of the moulded recess in the cowl. The front of
the silencer is touching the cowl on the outboard side, forward of the
recess. The straight outlet pipe from the silencer would exit several cm
above the moulded recess. The silencer could not move any further back,
as it has only a few mm clearance from the bottom attachment of the ring
mount. Photo attached.
I presume this is a result of having the oval section silencer
instead of the round section one. Have others had this problem, and if
so what have you done?
Keith Hickling,
New Zealand.
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