TSB 07-04-94 Service Manual Revision
||Cooling System 7 - 34
Fig. 53 Generator Mounting Bracket Bolts - Diesel
(9) Position the generator to
gain access to thermostat housing and housing bolts.
(10) Remove thermostat housing mounting bolts.
(11) Remove the thermostat housing, thermostat, inner
and outer seals and lift bracket (Fig. 52).
(12) Clean the mating surfaces of the thermostat housing
and the cylinder head.
(1) Install the outer seal (Figs. 52 or
54) into the machined shoulder on the thermostat housing.
(2) Install the thermostat into the machined
shoulder next to the outer seal. Note direction of thermostat in figures
52 and 54.
(3) Position the inner thermostat seal with the
shoulder towards the thermostat housing (Fig. 54).
(4) install thermostat, lift bracket, seals and housing
Fig. 54 Thermostat Seals - 5.9L Diesel - Typical
to the engine as an assembly. Install and tighten mounting
bolts to to 24 Nm (18 ft. lbs.) torque.
(5) Position generator to thermostat housing.
Install and tighten mounting bolt to 24 N-m torque. Tighten pivot bolt
to 43 N-m (32 ft.lbs.) torque.
(6) Install the check valve hose and hose clamp
at thermostat housing (Fig. 52).
(7) Install accessory drive belt. Refer to Belt
Removal / Installation in the Engine Accessory Drive Belt section of this
(8) Connect negative battery cables to both batteries.
(9)Fill cooling system and check for leaks. Refer
to Refilling Cooling System in this group.
The cooling system is designed
around the coolant. Coolant flows through, the engine water jacket absorbing
heat produced during engine operation. The coolant carries the heat to
radiator and heater core. Here it is transferred to the ambient air passing
through the radiator and heater core fins. The coolant also removes heat
from the automatic transmission fluid in vehicles equipped with an automatic
The required ethylene-glycol
(antifreeze) and water mixture depends upon climate and vehicle operating
conditions. The coolant performance of various mixtures follows:
Pure Water - Water can absorb more heat
than a mixture of water and ethylene-glycol. This is for purpose of heat
transfer only. Water also freezes at a higher temperature and allows corrosion.
Thanks to Bob Bergevin and Barry Drodge for supplying this TSB
This page was edited on: May 3, 2004