Prelub P4L-20 System

A pre-lubrication & evacuation system intended for engines of 10 to 40 ℓ displacement or with sump capacities of 10 to 180 gallons.

Performance (12 V Systems):
21° C 15W40 Oil: 16-20 gpm @ 60-75 A depending on available engine port sizes.
0° C 15W40 Oil: 7-9 gpm @ 70-100 A depending on available engine port sizes.

System Components and Features:

• Timer: Standard Prelub “No-Delay” relay timer delivers fastest possible start.
• Wiring: Cable size & fuse prevent harness and motor damage due to excessive current.
• Motor Switch: Rated for 600 A carry current yet consumes minimal power for activation.
• Inlet Hose: Rated for 148.9° C oil. Will not collapse under any vacuum level.
• Pressure Hose: Rated for 148.9° C oil and 5 times maximum pump output pressure.
• Check Valve: Prevents backflow of oil after engine start with minimal restriction and weight.

System Connections:
Plumbing
Custom fittings are available to connect to the engine or sump. With Prelub™ plumbing, oil is drawn through an oil pan port and returned to a port before the existing engine filter

• Sump suction fitting should have at least 15.24 mm ID (17.46 mm ORB, 19.05 mm NPT, M27) if used w/viscous oil (15W40 below 40°F). If a large port is not available, call for alternatives.
• Oil return port should have at least 10.16 mm ID. (12.7 mm pipe, 19.05 ORB, M22)
• Install the pressure switch into the furthest downstream port in the engine’s pressurized oil system. Adapters available for most port types and sizes.

Electrical
Connect motor through the magnetic solenoid switch to a source of power with the gauge of cables recommended on the next page. Connect the main harness to the key switch harness, magnetic solenoid switch, pressure switch harness and control relay

Motor-Pump Components and Features:

• Motor: Series-parallel wound DC motor. High efficiency reduces current draw at all conditions.
• Pump: High-strength, low-weight aluminium housing with steel gears & improved shaft support.
• Integral Relief Valve (120 psi) and seal-protection feature prevent motor or pump damage due to excessive pump pressure.

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