Hi Paul-

I was inspecting the lower cowl area after getting the engine running
again
post-electrical changes.  I noticed that the fiberglass is showing signs
of
heat damage from the heat coming off the VAM muffler.

When Mark Steitle was here with his 20b, I saw that he had fashioned a
heat
shield to cover the exhaust manifold, as well as applied reflective
barriers
on the fiberglass.

I ordered some of the reflective barrier for the motor mount tubes &
fiberglass yesterday.  Getting a similar heat shield around the VAM will
be
tricky.  And I wonder whether there is some minimum air gap I would have
to
respect, lest the VAM melt itself.

Your thoughts??

Mark (Rocky Mtn High)

I don't know what that airgap would be. Depends on the effectiveness
of the insulation. Fiberfrax has a good reputation covered with
26 gage SS. (very thin)

Makes sure you get a blast air cooling tube to the center pipe in the
muffler.

Steve Beckham is putting a metal bubble on his cowl near the exhaust.

Paul Lamar


Mark,

we use fiberfrax material for a heat barrier against the fiberglass then a
metal heat shield.  Fiberfrax can be found at Wicks or ASS.

Joe Berki
Limo EZ
13b, painting wings