Tilton Standard Oil Cooler Pump (98-1901) - Manual (Page 2)

CHeCk valve assembly rePlaCement
(Refer to Diagram 2 for the Part Numbers)
1. Mark a line at the joint between the pump head and the cam bearing
housing and use this line when assembling.
2. Pay particular attention to the orientation of the pump head inlet and
outlet lines and the check valve.
3. Loosen and remove the four upper Phillips head screws that retain the
pump head assembly.
4. Remove the pump head assembly.
5. Carefully remove and set aside the old check valve body, which
includes the old o-ring.
6. The Tilton Differential Pumps (P/Ns 40-524 & 40-525) use the o-ring
that is supplied. The ring seal is not used.
7. Place the new o-ring into the new check valve body.
8. Insert the new check valve body with o-ring installed into the pump
head.
9. Place the pump head onto the cam bearing housing.
10. Align the marks that were made on the body in step #1.
11. Insert and tighten the four Phillips head screws.
12. Temporarily supply 12-volt DC power to the pump and check operation of
the pump before installing it into the vehicle.
troublesHootIng
TITLE:
25 EASY STREET, P.O. BOX 1787, BUELLTON, CA 93427 805/688-2353
DRAWN BY CHKD SCALE
DATE P/N SHEET OF
DWG
TILTON ENGINEERING, INC. FAX 805/688-2745
: 1
TRANSMISSION/DIFFERENTIAL OIL COOLER PUMP
REED
02/22/08
1
1
5286
AVAILABLE WITH BUNA OR VITON RUBBER DIAGHRAM
SEE TABLE
3 4 2 1
C
D
B
A
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1
Drill Hole O 3/16", 4 PL.
3.25
(82.55)
2.25
(57.15)
MOUNTING HOLE DIMENSIONS
40-524 COOLER PUMP, BUNA FOR NON-CORROSIVE FLUIDS
40-525 COOLER PUMP, VITON
FOR CORROSIVE FLUIDS
7.9
(200.7)
3.4 O
(86.4)
3.05 O
(77.5)
3/8 NPT, 2 PL.
3.35 O
(85.1)
3.15
(80.0)
25 Easy Street • Box 1787 • Buellton, CA 93427 • USA • (805) 688-2353 Fax (805) 688-9407
98
-19
01
Diagram 2
Symptom Possible causes action to take
Motor runs,
no discharge
Restricted intake or
discharge lines
Restricted intake or
discharge lines
Air leak in intake line Check for leaks
Punctured pump diaphragm Disassemble and inspect
Crack in pump housing Inspect for cracks
Ensure correct power polarity
Check fuse, power switch
and polarity
Motor fails to
turn on
Pump or equipment not wired
correctly
Check fuse, power switch
and polarity
Defective motor Check for motor rotation
Blown fuse or switch is off Check fuse and power
Low flow and
pressure
Air leak in intake line Check for leaks
Accumulated debris inside pump/
plumbing
Disassemble and inspect
Worn pump bearing Disassemble and inspect
Punctured pump diaphragm Disassemble and inspect
Defective motor Check for motor rotation
Insufficient voltage to pump
Measure supply voltage, must be
> 12-volt DC
Pulsating
flow-pumping
cycle on/off
Restricted pump delivery
Check discharge lines, fittings
for blockage
Undersized line to intake of pump Use only 3/8” NPT fittings