Hi folks,
I have a Mattituck IO-360 (parallel valve) engine with a forward-facing sump, Precision fuel injection, and a Vetterman crossover exhaust. Probably not that unusual of a combination. I was having problems getting enough clearance between the throttle cable and the exhaust pipes, so I came up with a somewhat alternative routing. I re-bent the throttle bracket that's included in the Van's FWF kit and flipped it around on the mounting boss, so the throttle cable is moved about 2" outboard:
This gives plenty of clearance between the cable and the exhaust pipe:
However, it seems to work best with an offset arm and a long bolt plus spacer:
Closeup of the linkage:
This setup seems to work really well - there's enough travel to reach both stops on the fuel servo, and there's a ton of room between the cable and exhaust. I guess my question is, should I be concerned about the somewhat unusual use of an offset throttle arm and a long bolt? I've never seen this arrangement before.
thanks,
mcb
P.S. Please ignore the lack of safety wire, cotter pins, firesleeve, etc... I'm still test fitting.
I have a Mattituck IO-360 (parallel valve) engine with a forward-facing sump, Precision fuel injection, and a Vetterman crossover exhaust. Probably not that unusual of a combination. I was having problems getting enough clearance between the throttle cable and the exhaust pipes, so I came up with a somewhat alternative routing. I re-bent the throttle bracket that's included in the Van's FWF kit and flipped it around on the mounting boss, so the throttle cable is moved about 2" outboard:
![2080414_throttle1.jpg](/community/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F2080414_throttle1.jpg&hash=cc74447284e770b8eabf207aa59b9ee7)
This gives plenty of clearance between the cable and the exhaust pipe:
![2080414_throttle5.jpg](/community/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F2080414_throttle5.jpg&hash=fa652c49f7ab26c7304ef1027874a6f6)
However, it seems to work best with an offset arm and a long bolt plus spacer:
![2080414_throttle2.jpg](/community/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F2080414_throttle2.jpg&hash=86ecd46886561f0b436b0e1fe9f76094)
Closeup of the linkage:
![2080414_throttle4.jpg](/community/proxy.php?image=http%3A%2F%2Fwww.rv7blog.com%2Fimages%2F2080414_throttle4.jpg&hash=7b3102701dca380359743cf8bedb06f5)
This setup seems to work really well - there's enough travel to reach both stops on the fuel servo, and there's a ton of room between the cable and exhaust. I guess my question is, should I be concerned about the somewhat unusual use of an offset throttle arm and a long bolt? I've never seen this arrangement before.
thanks,
mcb
P.S. Please ignore the lack of safety wire, cotter pins, firesleeve, etc... I'm still test fitting.