INSTALLATION INSTRUCTIONS
Oil Cooler Pump
(40-527)
Flow: 1.9 GPM (7.2 LPM) MAX | Pressure: 50 PSI (3.4 BAR) MAX | Voltage: 12 VDC | Current: 8 AMPS
Temperature range: 40–160˚ F Continous; 265˚ F (MAX) Intermittent | Prime: Self-priming up 8.0 ft (2.6 m) vertical height
How It works
The Tilton Oil Cooler Pump is a positive displacement type of pump, so its output is directly proportional to
the motor speed. If a lighter load increases the motor speed by 25%, then the ow rate increases by 25%.
The ow rate vs. pressure is shown in Graph 1 with a maximum available pressure of 50 PSI. A uid system
will only ow as much as the smallest restriction will allow. Larger diameter lines and ttings allow more
ow and place less load on the pump. This pump is self-priming and can be placed up to 8 ft above the
source from which it draws. The typical application for the pump is in a dierential or transmission cooling
system. A 12-volt DC, 8-amp power supply is required. The current draw is 6 amps under a maximum load
condition with a more typical current draw between 3 and 4 amps. This pump weighs approximately 6 lbs
and is rated for continuous duty. The diaphragm and other internal seals are made of BUNA and the pump
head is Nylon. This pump is not designed to pump corrosive uids including gasoline or diesel fuel.
InstallatIon notes
The Tilton Oil Cooler Pump is placed inline with the cooling system as shown in Diagram 1. Placing the
pump on the outlet side of the cooler exposes it to lower temperatures signicantly increasing the life
and reliability of the pump. A 40-mesh (400 micron) strainer or lter placed inline before the inlet of the
pump prevents foreign objects from damaging the pump. Heavy gear oil must be brought up to operating
temperature before the pump is engaged. The cold uid can be very thick and place an unusually large
strain on the pump. Tilton recommends the use of an on/o switch so the pump can be turned o during
warm-up periods. If the pump is mounted in a vertical position, mount the pump with the motor above
the pump inlet and outlet to prevent damage to the motor in the event of a uid leak. The pump head can
be rotated in 180-degree increments, allowing a variety of hose positions. Be careful not to damage the
plastic pump housing by over tightening the ttings. If a check valve is placed inline with the pump, the
check valve must have an opening pressure of no more than 2 PSI. The electrical hook-up is simple. Con-
nect the pump to a 12-volt DC supply with a 8-amp fuse inline with the (red) positive lead. The black lead is
the chassis ground.
HEAD (PSI)
AMPS (A)
60
30
50
25
40
20
30
15
20
10
10
5
98 -19 02
operatIon
• Allow the pump to prime with the discharge line open to prevent airlock.
• The pump will not be harmed if it is allowed to run dry. It is self-priming.
• This pump has an internal pressure relief valve and will automatically recirculate the within the pump
when 50 psi is reached.
plumbI ng
• For best results, use a exible AN8 (10mm) steel braided hose.
• Use only 3/8" NPT aluminum ttings at the pump inlet and outlet. Be careful not to over-tighten the
ttings and damage the pump housing.
• A 40 mesh (400 micron) lter should be used inline before the inlet of the pump.
electrIc al
• Use a minimum of 16AWG stranded wire for power connections.
• Use a 10-amp inline fuse on the 12-volt DC (red) power connection.
• The IP class for the electronics is -5- which is for dust only (pump is NOT water proof).
addItIonal Info
• Fluid can only pass through pump head in the ow direction when pump is turned o. However, back
ow of residual uid in lines going to pump can occur.
• Use a 10-amp inline fuse on the 12-volt DC (red) power connection.
0.4 0.8 1.2 1.6 2.0
Graph 1
Flow Rate (GPM)
Graph 1
Di /Trans
Cooler
Diagram 1
Dierential
or
Transmission
D
C
1
3
2
REVISIONS
REV
ECN
DESCRIPTION DATE
BY
A INITIAL RELEASE
DA
11/27/09
mountIng Hole dImensIons
D
C
1
3
45
2
REVISIONS
REV
ECN
DESCRIPTION DATE
BY
4.00
[101.60]
2.00
[50,71]
3.62
[91,9]
1.54
[39,19]
3.10
[78,61]
.38
[9,65]
.75
[19,05]
3.18
[80,77]
.74
[18,8]
8.70
[220.98]
2.69
[68,22]
2.25
[57,15]
3.03
[77,04]
A INITIAL RELEASE
DA
11/27/09
PUMP SPECIFICATIONS:
PUMP MODEL: D71X006BR
PORTS: 3/8 NPTF
VOLTAGE: 12 VDC
AMPS: 8 AMPS
FLOW: 1.9 GPM [7.2 LPM] MAX
PRESSURE: 50 PSI [3.4 BAR]
CONSTRUCTION MATERIALS:
DIAPHRAGM MTL: BUNA
CHECK VALVE MTL: BUNA
PLASTICS: BUNA
12.00
WIRE LENGTH
[304.80]
• 2.25" vertical centers x 3 .18" horizontal centers.
• Drill hole diameter: 3/16", 4 place s.
• Use high quality #10 bolt s with lock nuts.
.74
[18,8]
[68,22]
WIRE LENGTH
12.00
[304.80]
2.69
2.25
[57,15]
3.03
[77,04]
8.70
[220.98]
rotatIng pump Head
• Disconnect power.
• Remove the four phillip screws used to secure the pump head
to the motor.
• Pull the head away from the motor and rotate 180°.
• Re-align the four pins on the motor housing with the holes
in the pump head plate and the cam bearing with the "D"
shaped motor shaft.
• Re-install the four phillip screws and torque to between
38 in-lbs and 42 in-lbs.
troublesHootIng
Symptom Possible Causes Action to Take
Motor runs, no discharge
Motor fails to turn on
Low ow and pressure
Pulsating ow-pumping cycle on/o
Restricted intake or discharge lines Check lines for restrictions
Air leak in intake line Check for leaks
Punctured pump diaphragm Disassemble and inspect
Crack in pump housing Inspect for cracks
Power polarity Check fuse, power switch and polarity
Pump or equipment not wired correctly Check fuse, power switch and polarity
Blown fuse or switch is o Check fuse and power
Defective motor Check for motor rotation
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
Insucient voltage to pump Measure supply voltage, must be greater than 12-volt DC
Defective motor Check for motor rotation
Restricted pump delivery Check discharge lines, ttings for blockage
Undersized line to intake of pump Use only 3/8" NPT ttings
Alignment pins (4 PL)
Motor Platform
Pump Head
4 REQUIRED
TORQUE TO
38-42 IN-LBS
Tilton Engineering, Inc. 25 Easy Street • PO Box 1787 • Buellton, CA 93427 • www.tiltonracing.com