Technical data

13773-001
71-00
Page 2 30 Nov 2000
3. TROUBLESHOOTING
TROUBLE PROBABLE CAUSE REMEDY
Engine Will Not Start. Improper use of starting proce-
dure.
Refer to Pilot’s Operating Hand-
book. (List of Publications)
Fuel tank empty. Inspect and fill tank. (Refer to 12-
10)
Mixture control in SHUTOFF posi-
tion.
Advance mixture control to RICH
position.
Fuel selector valve in OFF posi-
tion.
Place selector valve in ON posi-
tion to tank known to contain fuel.
Fuel vaporization. Turn boost pump ON.
Engine flooded. Turn off boost pump and ignition
switch. Advance throttle to full
OPEN, retard fuel control to full
LEAN, and crank engine to clear
cylinders of excess fuel. Repeat
starting procedure.
Water in fuel system. Sample fuel per POH. If water
present drain and flush fuel sys-
tem. (Refer to 12-20)
Fuel contamination. Drain and flush fuel system. (Refer
to 12-20)
Defective magneto switch or
grounded magneto leads.
Check continuity. Repair or
replace switch or leads.
Spark plugs fouled. Remove, clean, and re-gap. (Refer
to TCM Model IO-550 Overhaul
Manual)
Excessive starter slippage. Replace starter adapter. (Refer to
TCM Model IO-550 Overhaul Man-
ual)
Defective ignition system. Inspect and replace necessary
components. (Refer to 74-00)
Induction system leak. Torque or replace loose or dam-
aged hose connection.
Excessive Starter slippage. Replace starter adapter.
Fuel system malfunction. Isolate cause and correct.