Engine Block Water Heater Replacement - Dodge D250 1990 Service Manual

Electrical System
DODGE Turbo Diesel
Engine Block Water Heater - Replacement
Preparatory Step:
Warning; Wait until the temperature is below 50°C [120°
F] before removing the coolant system pressure cap.
Failure to do so can cause personal injury from heated
coolant spray.
Drain the coolant system by opening the drain valve on the
radiator. A drain pan with a capacity of 20 liters [5 U.S. gallons]
will be adequate to hold the coolant.
Engine Electrical System Replacement Procedures
Page 8-19
Disconnect the block heater electrical cord.
5mm
Loosen the block heater screw and remove the block heater
from the block.
5mm
Clean the bore in the cylinder block. Check the o-ring on the
heater to make sure it is not damaged. Slide the heater into the
seated position and tighten the retaining screw.
Torque Value: 12 N-m [9 ft-lbs]
Connect the electrical cord to the heater.