I'm finding Van's instructions for routing and securing cables in the engine compartment of the RV-12iS a bit mysterious. The photos in the KAI don't seem to represent the cabling as it appears on my engine or that of the student project I'm involved with. I've puzzled over this problem with several of the mentors and we don't really have a good plan so I was wondering if any of you have some words of wisdom to share?
Some of the issues I'm seeing:
1. The CPS wires shown on page 46-4 run very close to the flange on the engine mount and will need to be bent at a sharp angle and tied under tension to keep them away from the bracket.
2. The ECU cables shown schematically in Figure 2 on page 46-5 and in Figure 3 on page 46-08 are securely attached to engine at different points and a different angle than those images show. To secure the right hand cable as shown in Figure 3 would require bending it aggressively more than 90 degrees from where it attaches to the engine. Even doing that, it appears it would rub against the engine mount flanges on either side of the bushing (seen in Figure 3).
3. The math for the bolt securing the ECU cables in step 4 on page 46-8 just doesn't work. The image clearly shows the bolt through three clamps with a spacer between the bottom two and the top one. The bolt is an AN3-11A which is 1-5/32" (1.156") long. The spacer is 3/4" long, each leg of the clamps is 0.04", and the nut is 0.17" thick. 0.75+6*0.04+0.17 = 1.16. So either the spacer isn't the thickness specified or a longer bolt must be used.
Has anyone else run into these issues, and how did you solve them? Do you have any other advice for routing the cables?
Some of the issues I'm seeing:
1. The CPS wires shown on page 46-4 run very close to the flange on the engine mount and will need to be bent at a sharp angle and tied under tension to keep them away from the bracket.
2. The ECU cables shown schematically in Figure 2 on page 46-5 and in Figure 3 on page 46-08 are securely attached to engine at different points and a different angle than those images show. To secure the right hand cable as shown in Figure 3 would require bending it aggressively more than 90 degrees from where it attaches to the engine. Even doing that, it appears it would rub against the engine mount flanges on either side of the bushing (seen in Figure 3).
3. The math for the bolt securing the ECU cables in step 4 on page 46-8 just doesn't work. The image clearly shows the bolt through three clamps with a spacer between the bottom two and the top one. The bolt is an AN3-11A which is 1-5/32" (1.156") long. The spacer is 3/4" long, each leg of the clamps is 0.04", and the nut is 0.17" thick. 0.75+6*0.04+0.17 = 1.16. So either the spacer isn't the thickness specified or a longer bolt must be used.
Has anyone else run into these issues, and how did you solve them? Do you have any other advice for routing the cables?
