Mercury BE5Z-11002-E Starter Motor Assembly

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Do not immediately assume that the starter is causing the problem. First, check the following items: a) Make sure that the battery cable clamps are clean and tight where they connect to the battery. b) Check the condition of the battery cables and replace any defective ones with new parts. c) Test the condition of the battery; if it does not pass all tests, replace it with a new battery. d) Check the starter solenoid wiring and connections. e) Check the starter mounting bolts for tightness. f) Ensure that the shift lever is in PARK or NEUTRAL (for automatic transaxle) or that the clutch pedal is pressed (for manual transaxle). g) Check the adjustment of the Transmission Range (TR) sensor on vehicles with an automatic transaxle. For manual transaxle vehicles, ensure that the Clutch Pedal Position (CPP) switch is correctly installed. h) Check the operation of the starter relay located in the engine compartment fuse and relay box.

Remove the two bolts (in a vertical position) and lift the starter motor from the transaxle.

Remove and check the starter/solenoid assembly on the bench. The solenoid is likely defective. In rare cases, the engine may be seized, so try to rotate the crankshaft pulley before proceeding. With the starter/solenoid assembly mounted in a vise, connect jumper cables from the battery to the starter and apply battery voltage to the solenoid S terminal for 10 seconds or less. Observe the solenoid plunger, shill lever, and overrunning clutch. If the pinion drive extends but does not rotate, the starter motor is defective. If there is no movement but the solenoid clicks, either the solenoid or the starter motor is defective. If the solenoid plunger extends and rotates the pinion drive, the starter/solenoid assembly is functioning properly.

Disconnect the battery cable (the large cable) from the starter motor and the starter control electrical connector from the starter motor solenoid terminals.