37500 EFI Bravo
SPECIFICATIONS
Engine Specifications (cont.)
MODEL 500 EFI
Oil Pressure
@ Idle rpm (Hot)
30 psi (207 kPa)
Min. Oil Pressure
@ W.O.T.
45 psi Min. (310 kPa)
Engine Oil Temp.
@ 5200 rpm
170°-180°F (77° –82°C)
Thermostat 140°F (61°C)
Engine Water Pres-
sure @ 4800–5200
rpm
20 psi min.-30 psi max. measured at the
lower block drain position
1
Engines are equipped with an ignition system that have a built-in 5400 rpm rev
limiter. Engine is performing normally if it will not exceed this rpm.
Tune Up Specifications
MODEL 500 EFI
Spark Plug Type
AC-MR43T, NGK BR6FS, P/N 33-59571 or
Champion RV8C
Spark Plug Gap .035 in. (0.9 mm)
Timing @ Idle
rpm
8° BTDC (See Note)
Firing Order 1-8-4-3-6-5-7-2
Serpentine Belt
Tension (Note 2)
New 120 lbs. (530 N)
Used 80 lbs (350 N)
Note 1: A special procedure must be followed to check or adjust timing. Consult your
Authorized MerCruiser Dealer before attempting this procedure.
Note 2: Special belt tension tool required.