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Kupe's Zodiac 650B
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Date:  11-12-2018
Number of Hours:  4.00
Manual Reference:  
Brief Description:  Cabin Heat 3: Pass-Thru Install

With the holes cut into the firewall, I began installing the flanged pass-thru port for the heater. I accomplished this by marking and drilling 6 pilot holes into the firewall side, hose attach flange for future rivets. Next, I used the hose attach piece as a template to drill holes through the firewall. Finally, I clamped the firewall side piece flange to the cockpit piece flange as a template to drill the cockpit side flange. With all three pieces (2 x pass-though pieces and a firewall) pre-drilled, I clecoed them in place to test fit/alignment and to see if the butterfly valve still rotates freely. It does.
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Test install of the passenger side heater hose attach point.

Test install of the passenger side heater hose attach point.

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Inside the cockpit view of the temporarily installed butterfly valve.

Inside the cockpit view of the temporarily installed butterfly valve.

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