Radiator Fan Removal/Installation; Water Pump Removal/Installation - Dodge D150 1990 Service Manual

Rear wheel drive ram truck

Table of Contents

COOLING SYSTEM

CAUTION: Do not place viscous fan in upright po-

sition. The silicone fluid in the viscous drive could

drain into the bearing assembly and contaminate

the lubricant.

(3) Remove f a n blade, spacer or viscous d r i v e u n i t ,

p u l l e y and bolts as a n assembly (Fig. 1).

WITHOUT A/C AND WITHOUT MAXIMUM COOLING

ALL 5.21/5.91 AND ALL 3.9L EXCEPT WITHOUT A/C AND

WITHOUT MAXIMUM CQOUNG

Fig. 1 Radiator Fan Removal/Installation

(4) Loosen alternator adjusting strap bolt, lock n u t

and pivot bolt (Fig. 2 or 3). Loosen adjusting screw to

release belt tension.

(5) Remove front bracket t h a t supports t h e alterna-

t o r and a i r conditioning compressor ( i f equipped) or

i d l e r pulley (not equipped w i t h a i r conditioning). The

compressor or idler pulley w i l l be supported b y t h e

rear m o u n t i n g bracket.

(6) Loosen a i r pump pivot and adjusting bolt. Re-

move drive belt.

(7) Remove a i r pump.

(8) Loosen power steering p u m p pivot a n d adjust-

i n g bolt i f equipped. Remove drive belt.

(9) Remove power steering p u m p f r o n t m o u n t i n g

bracket i f equipped. Support power steering p u m p

w i t h mechanics wire. Do n o t l e t p u m p h a n g sup-

ported by hoses.

(10) Disconnect heater and by-pass hoses.

(11) Remove water p u m p m o u n t i n g bolts and water

p u m p assembly. Discard gasket a n d clean m a t i n g

(JACK) SCREW

PIVOT & ADJUSTING SCREWS

40 FT. LBS. (54 N-m)

Fig. 2 Water Pump Removal/Installation—3.9L, 5.2L

Engines and 5.9L Engine Low Duty Cycle

Fig. 3 Water Pump Removal/Installation—5.9L

Heavy Duty Cycle