[SMO]

I am putting a new engine in my -4. It comes with the Silver Hawk fuel injection system - replaces the Precision RSA-5AD1 I had on the old engine. In order to connect the cables the mixture lever needs to be oriented downwards and is interfered with by the airbox.

Solutions I have seen are:
- Cut the airbox to allow for the swing of the lever.
- Build a new airbox; offset to the edge of the servo to allow for the swing of the lever.
- Get a servo from Precision that has a reverse rotation mixture.

Any other ideas?

 

[C-GRVT]

or,

consider whether the lever can be modified, or changed to one that will swing without interference, or reclocked - Precision has four different levers of different lengths and offsets. If you do have to modify the airbox, I understand Van's sells a modification for the airbox designed to provide a clearance for the servo lever.
Have a look at this thread for a very long discussion of this issue and solutions.
http://www.vansairforce.com/community/showthread.php?t=15778
Or, search "vertical induction" and find thread re. cowling clearance.

Bill Brooks
Ottawa, Canada
RV-6A finishing kit

 

[SMO]

Thanks for the link Bill, doesn't look like anyone has developed the "magic bullet" for this problem. Think I will make up a bell crank mounted at the servo to change the rotation direction.