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Bobs Ten
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Date:  3-24-2018
Number of Hours:  4.10
Manual Reference:  
Brief Description:  Cowl Fitting, Systems Integration

1348 - 1754

Today was spent integrating various systems.

The cowl was installed to verify fit with all cables, wires, and fuel lines. I found several areas of interference, mainly between the cowl top and the governor cable bracket. Much of today was devoted to altering the top cowl inlet ramp to accomodate the bracket. While working on the ramp, I discovered a small section of baffling near the left inlet that was interfering with the final cowl position. I needed to remove a short length of silicone baffle and trim the underlying aluminum baffle to eliminate the interference. After several iterations, satisfactory clearance was achieved and the silicone baffle was reinstalled.

Time was spent verifying all linkages were free of interference through their full range of motion.

Next, the K&N air filters were installed in the center intake plenum. I found that achieving the right install depth on the plenum was problematic and there was difficulty securing the hose clamp around the air filter. The solution was to cut two 1/2" tall sections of PETG pipe to use as spacers. The spacers sit around the plenum tubes and create a defined stopping point for sliding the air filters on the plenum tubes. This distance also positions the hose clamp to secure the air filter..

I then installed the induction system to help define the final fuel line. The issue is that thefuel rail on the 1-3-5 side exits very near to the #1 exhaust. After some time and numerous trials with vinyl tubing, I determined a satisfactory route for the fuel line. It will connect to the #1 fuel rail, run basically parallel to the exhaus for a short distance along the intake plenum. It will then run behind the plenum, through an Adel clamp that was fastened to the engine block via a fabricated bracket, and back up to the #2 fuel rail. This yields a fuel line that is approximately 6" longer than a direct run but the fuel line never gets within 2" of the exhaust. I will order the line tonight.

The next issue was caused by the
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