I am about to have the machine shop produce a prototype slide throttle.
I want to be absolutely sure that it will fit.
I need to check the center to center dimensions of the rotor and center
housings on the 1988 to 1991 13B engine. Specifically, I need to check
the distance between the two rotor housings, center to center, in an
assembled engine at about where the p-port openings would be.

Could someone get these dimensions for me? Measurements from different
engines would be good. Either metric or US units are OK.

Thanks in advance.

Doc Custer
Retired software engineer and sometime Audiologist
Building RV9-A. Fuselage

Doc,
I have a 1988 four port and a 1985/86 six port.  I'll check the
dimensions tomorrow morning.

Aubrey



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