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The Bowden cable goes from the engine control assembly, up behind the instrument panel and through the firewall to the engine bay. A feed-thru fitting holds the cable in position at the firewall. A fire resistant compound seals the Bowden cable where it goes through the firewall.
From the firewall the Bowden cable goes down the right side of the engine and then under the engine to the fuel injector. The outer sheath of the Bowden cable attaches to a bracket on the bottom of the engine with two nuts. If you adjust these two nuts you adjust the range of movement of the throttle control lever. The control rod eye end attaches to the throttle lever at the injector with a nut, bolt and two washers. The eye end is adjustable. You can use it to set the correct range of movement of the throttle valve.
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AIRCRAFT AMM
FIREWALL FEED-THROUGH
Pop Rivet
Split Shield Knob Spring
Lock-out Lever
Split Bush Bolt
Bolt Plate Washer
SpacerMixture Cable NutToothed Rack
Front Adjustment Nut Swivel Fittingfor Outer Sheath
Rear Adjustment Nut Mixture Cable for Outer Sheath
COCKPIT CONTROL
Top Adjustment Nut for Outer Sheath
Mixture Cable
Long Bolt Bottom Adjustment Nut for Outer Sheath
Lock-nut
End Fitting
Washer

Nut Spacer
LH SIDE OF FUEL INJECTOR ON THE ENGINE
Figure 3: Mixture Control Installation
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Engine Controls
AMM

C. Mixture Control
Figure 3 shows the mixture control installation. The mixture control lever sets the mixture between RICH and LEAN. It also stops the fuel supply to the engine when set to CUT-OFF. The mixture control lever attaches to the engine control assembly.
The mixture control lever has a lock-out lever attached. The lock-out lever prevents accidental movement of the mixture control lever. The spring loaded lock-out lever engages in a toothed rack. The toothed rack attaches to the tubular spacers at the right side of the engine control assembly.
A Bowden cable connects between the mixture control lever in the cockpit and the mixture lever at the engine. The Bowden cable wire end attaches to the mixture control lever through a hole in a swivel fitting. A screw locks the wire end in position. A small bracket holds the inboard end of the swivel fitting. Two nuts, bolts and washers attach the bracket to the mixture control lever.
The outer sheath of the Bowden cable has a threaded end fitting. Two nuts attach the end fitting to a bracket attached between the sides of the engine control assembly. The Bowden cable goes from the center console up, in front of the instrument panel and through the firewall to the engine bay. A feed-thru fitting holds the cable in position at the firewall. A fire resistant compound seals the Bowden cable where it goes through the firewall.
From the firewall the Bowden cable goes up, over the right side of the engine through the rear air cooling baffle. It goes through the front air baffle and crosses to the left side of the engine. It goes down behind the propeller governor to the fuel mixture lever on the injector. The threaded end of the Bowden cable outer sheath then attaches to a bracket with two nuts. You can adjust the range of movement of the mixture control lever at this position. The Bowden cable eye end fitting attaches to the mixture lever with a long bolt, spacer, washer and nut.
The eye end is adjustable. You can use this adjustment to set the correct range of movement of the mixture lever.
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AMM

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Engine Controls
AMM

Trouble-Shooting
1. General
Use the data below to trouble-shoot the engine controls. See also the Lycoming Maintenance Manual for the engine.
　
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