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Steve & Nancy Riffe
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Date:  3-2-2016
Number of Hours:  4.00
Manual Reference:  
Brief Description:  Baffled by inlet ramps!

I spent several hours last evening looking at various build logs trying to understand what the plans aren’t telling me regarding the forward ramps and baffles. I think now I have a plan in mind as how to proceed. Because of the air filter on the left side, it appears that the left and right will go together quite differently—so I started on the right. The first issue was to trim the outboard edge of the ramp so that the baffle can be bent inward where there is a 1/16” gap between the baffle and the edge of the inlet cowl. I drew a line on the baffle where I thought I should bent it inward and then noticed a small notch at the top and bottom of the baffle. Hmm, the notch at the top matches where I guessed on end of the bend should be. I drew a line to connect the notches and put a slight bend in the baffle. Next, I need to take some of the bend out of the ramp to get it to fit just under the inlet lip—maybe 1/16” vertical clearance and a horizontal gap of ¼” to 3/8”. I removed the ramp and smacked the bend angle with a rubber mallet to remove some of the existing bend. Re-fit the ramp, re-fit the cowl and then did it again—about 8 times. Finally got the inboard edge of the ramp just touching the lip of the inlet. The plans say to put a “crossing bend” in the ramp. What the heck is a crossing bend?? From looking at pics of other logs, one end starts where the ramp just touches the cowl lip on the inboard side and the other end is at the upper outboard part of ramp just before it bends to fit the stiffener—goes “across” the ramp at an angle. The idea is to bend the ramp up slightly to match the inlet lip. I put a small “crossing bend” in the ramp and re-installed, then re-installed the cowl. After 5 times, I got it done. Next up is to bend the bottom part of the side baffle to fit under the ramp. I marked and bent—got it close but it will take more work. Gave up and hit the beer fridge!!
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Bend line connecting notches

Bend line connecting notches

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Adding crossing bend

Adding crossing bend

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Ramp finally fit cowl lip

Ramp finally fit cowl lip

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