How about the basics:  Is the high-pressure line hot and the suction line
cold?  You said pressures were OK but could the high pressure be too high
and low pressure too low?  That might indicate a plugged system or defective
expansion valve.  My FL HVAC guy ALWAYS replaced the expansion valve when he
did any major work (like compressor replacement).  As I recall, the
expansion valve on a 126 is under the driver-side dash near the car's center
and it's behind the glove box on a 123.  It's hard to replace only because
of the contortions required to reach it and possible frozen B-nuts.  You do
NOT want to round off those nuts by forcimnf them.

-----Original Message-----
From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com]
On Behalf Of Craig
Sent: Thursday, July 26, 2012 3:02 PM
To: mercedes@okiebenz.com
Subject: Re: [MBZ] 787 transition training

On Thu, 26 Jul 2012 00:59:48 -0400 (EDT) relng...@aol.com wrote:

> From a pilot friend.

Interesting read. I have one quibble, though:

> > Electrics - Though a smaller plane, the 787 has 4 times the
> > electric generating power of the 777 - 1.4 gigawatts.

Uh, no. 1.4 megawatts, maybe, but not 1.4 gigawatts. That represents
1.9 million horsepower, not counting the efficiency of converting
mechanical energy to electrical. That also does not include the power
required to move the plane through the air.


Craig

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