That doesn't look like the rubber vacuum line sold in auto parts stores.  It
looks shiny and like plastic.  I would switch to the auto parts type.
I can see probably the two primary injectors right by where the line melted.
That area should not be too hot since fuel is right there.  However I do see
the EGT thermocouple line going by the area as well.  That may be
transferring heat to the plastic line.
Do you have a picture a little farther back to help orientation as to where
we are looking on the engine?

Bill B
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Ernest Chrisltey
Sent: Tuesday, September 11, 2012 9:48 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] MAP line suggestions

This is my MAP line. The heat of the exhaust comes up beside the intake
manifold and melted it. I replaced the melted section with a piece of 3/16"
aluminum tube. That conducted the heat better, and caused it to melt faster.
The package said it was high temp, but I don't think they anticipated the
rotary version of high temp.

What are you guys using?