Mercury Optimax Diagnostic Guide., Page 3Get this manual
OPTIMAX DIAGNOSTIC GUIDE
Symptom
Excess Smoke
No1 Verify fuelair pressure Verify fuel is not pre-mix Check for leaks in the inner and outer diaphragms on the pulse fuel pump Visually inspect for broken reeds Check for leaking fuel injectors Check for leaking idle exhaust boot Test and Verification Procedure 13 Page 16
Engine Stalls When Shifting
No1 Test and Verification Verify proper crank position sensor air gap (2000 only) Verify crank position sensor is not off-center (2001-2002) Verify on all 20012002 3.0L engines that all campaigns are completed (SB 2001-14SB 2001-18) Procedure Page 10 9