Some of us riveted a thin flat sheet of stainless on the forward side of
the aluminum. Actually makes for a stronger firewall with a little less
risk of damage I'm told.
I understand that fibrefrax cloth also meets the requirement. It and the
glue is available from Spruce. I did not use it because I figured it had
to be covered with something else anyway to keep it from eventually
becoming saturated with oil.
I don't know why MAM considered aluminum acceptable for early kits.
Ken
Curtis Langholz wrote:
Rob, Great topic for sure.... I purchased kit # 175r that had been in
storage for a long time. When I purchased it I bought the upgraded
manuals from MAM and got a tour of the factory plus talked to Daryl
about my engine choice. He recomended the 3" shortening of the boot
cowl which I did as well as the fload stiffeners and motor mount
doublers. I was feeling really good now that it was complete.... I
check the MAM bulletins regurlarly as well and there has not been any
mention of the firewall being aluminum or stainless. It is very
frustrating to have all this time putting it together to find out MAM
was so cheap to use an aluminum firewall that is a safety hazard. Can
anyone give me a suggestion of what I should do with it at this
point? Although it is a setback in the building process, it does
need to be addressed. Thanks for bringing up the question about the
firewall material.
Curtis
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