Mercury HP 500 EFI Bravo XR/XZ/III - Block Water Pressure Is below Specification; Block Water Pressure Is above Specification

135500 EFI Bravo
TROUBLESHOOTING
Block Water Pressure Is Below Specification
(DUAL WATER INLET GEARCASE)
Possible Cause
Remedy
Lower the “X” dimension.
Plug upper 4 strut water holes.
Insufficient water supply.
Install low water pickup
gearcase.
Install a transom or
through-hull water pickup.
Block Water Pressure Is Below Specification
(LOW WATER INLET GEARCASE)
Possible Cause
Remedy
Lower the “X” dimension.
Insufficient water supply.
Chan
g
e propeller that reduces
pp y
Change propeller that reduces
trim out positioning.
Block Water Pressure Is Above Specification
(DUAL AND LOW WATER INLET GEARCASE)
Possible Cause
Remedy
Hi h b t d i hi h
Install water bypass kit
(Available at MerCruiser
High boat speed causing high
ram pressure
(Available at MerCruiser
Dealershi
p
s
)
ram pressure
Dealerships)