Today's Message Index:
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1. 11:24 AM - Jaguar Cowl cabin heat cold air scat line (bvnj@yahoo.com)
2. 12:03 PM - Re: Jaguar Cowl cabin heat cold air scat line (Gary Vogt)
3. 09:12 PM - Here's a first (Gary Vogt)
4. 09:20 PM - sagging engine mounts (Gary Vogt)
Message 1
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| Subject: | Jaguar Cowl cabin heat cold air scat line |
Hi Gary,
My cabin heat scat tube has a splitter. 3 inch line goes to exhaust pipe shroud
and a 1inch line used to go to nose bowl diaphragm to supply fresh air. Do you
know what it is for? My guess is that without it the hot air is too hot and
it could damage the plastic defroster vents and maybe even windshield.
I don't see where does this 1 inch line connects to now. Where have you been connecting
it to?
Thank you,
-Boris
Message 2
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| Subject: | Re: Jaguar Cowl cabin heat cold air scat line |
Hi Boris,
I eliminated this for the STC. Just plug it with a rubber plug.
In 1985, I was doing the first annual on my 77 Cheetah and saw that hose. It
didn't make any sense to me. So, I removed it. I never replaced it. I sold
the plane in 1999. As far as I know, it's still not there.
I also removed it on my Tiger prior to the new cowling.
With the cabin heat coming in under positive pressure, you don't need the hose.
You can install it anyway you want. Get a 1 inch flanged duct from Aircraft
Spruce and mount it under the ignition leads to the right of the oil cooler.
Gary
________________________________
From: "bvnj@yahoo.com" <bvnj@yahoo.com>
Sent: Sat, July 2, 2011 11:22:05 AM
Subject: TeamGrumman-List: Jaguar Cowl cabin heat cold air scat line
Hi Gary,
My cabin heat scat tube has a splitter. 3 inch line goes to exhaust pipe shroud
and a 1inch line used to go to nose bowl diaphragm to supply fresh air. Do you
know what it is for? My guess is that without it the hot air is too hot and it
could damage the plastic defroster vents and maybe even windshield.
I don't see where does this 1 inch line connects to now. Where have you been
connecting it to?
Thank you,
-Boris
Message 3
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In 2008, the customer of a 2004 Tiger complained that there was a buzzing noise
in his headset when deploying flaps. I took everything apart and found the
current path through the micro-switches shared a common ground that went through
both micro-switches. I looked at the wiring diagram for a 79 Tiger and it was
NOTHING like the new Tiger. So, I rewired the micro-switches to mimic the 79
Tiger wiring diagram. The buzzing went away for a while. Then, it came back
only intermittently. A few months ago, the circuit breaker started popping when
the flaps were deployed. Could not duplicate on the ground.
Quite naturally I started to question whether it was a good idea or not to
change the wiring. I got in there again, 100 degrees in the hangar, more in
the cockpit, and took everything apart again. I could not find anything. No
shorts, no wires crossed, nothing. I grabbed the flap motor and had my
significant other deploy the flaps. I wanted to see if it got hot. What I
found was the entire flap motor and bracket moving. Not much, but moving just
the same.
I tried tightening the hold down nuts and they just spun. Then I looked
underneath.
Gary
Message 4
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| Subject: | sagging engine mounts |
The theory has been proposed that the engine mounts on a Tiger sag by 3/8 of an
inch within a few months.
The pics below are of N28840 taken yesterday. I installed the engine in this
plane with new Lord mounts in May 2000. As you can see, they don't sag.
I'm going to say your mileage may vary. I am not saying others haven't seen
something different. I would have liked to have been there to see it for
myself.
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