|
|
On my installation, lowering the exhaust system any little bit would create
interference elsewhere on the right side of the engine, the front at the sump
and on the left with the intake tubes, as well as then touching the bottom cowl
at the left rear side.
Gary
-----
Original Message -----
Sent:
Thursday, November 28, 2013 10:21 AM
Subject:
[LML] Re: Intake hose touching exhaust
What about using a thicker style exhaust gasket to bring the exhaust down
that little extra bit on all 4 of them.
Matt
Sent from my iPhone
John,
Same situation here with the 320 in the 235 cowl. The exhaust
pipe is very close to the intake tube stub on the sump on #2, so the rubber
hose connection is even closer. I ground down the rubber connection
hose thinner there for a little more space. An alternative is to
remove the exhaust (a big job on this engine) and create more clearance
via pipe massaging in that area. With the exhaust pipe going
thru above the intake tubes and below the bottom of the cylinders for
bottom cowl clearance, space is a real premium for other items like the
cylinder baffle safety wires, cht probes, oil return lines, starter
cables, etc.
Gary
LNC2
-----
Original Message -----
Sent:
Wednesday, November 27, 2013 7:53 AM
Subject:
[LML] [LNC2] Intake hose touching exhaust
The #2 cylinder of my O-290-D2 has been a real problem
child. While dealing with the impossible-to-reach inboard exhaust flange
nut, I noticed that the intake hose is actually touching the header
wrap on the exhaust stack which runs below the intake tube, and is
very close to touching the upper exhaust stack. This seems like a recipe
for disaster. Has anyone else had this problem and if so, how did you
solve it? Has anyone tried using silicone rubber hose or flexible metal
hose? Does the exhaust stack need to be reworked? Any suggestions would be
very appreciated.
<Intake Hose
Interference.jpg>
Here's a wide-angle shot taken before I
installed the intake tube and
hose:
<mime-attachment.jpg>
P.S. If anybody was wondering,
that aluminum flexible "hose" you see running along the top of the oil
sump is Thermo-Flex,
a flexible high-temperature heat shield which will hopefully protect the
wiring to the starter and alternator. The insulation on the #2 wiring to
the starter was actually discolored due to the heat in that
area.
|
|