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If the oil in your engine sloshes away from the sump pickup under cornering, acceleration, or braking, the pump will stop feeding pressurized oil to the bearings. Even momentary losses of oil pressure can quickly damage an engine.
An Accusump is a hydraulic pressure accumulator that protects your engine from temporary oil pressure loss. The precision-machined cylinder is divided into an oil chamber and a pressurized air chamber, with a free-sliding piston between. When the oil system builds pressure, oil is pushed into the cylinder, moving the piston and compressing the air. The air acts as a spring, pushing back against the piston and keeping the oil under pressure. Whenever the pressure in the oil system drops below the pressure stored in the cylinder, oil is forced out of the cylinder and back into the system to feed the bearings until the oil pump starts pumping again.
- 1-quart Accusump cylinder assembly measuring 3 1/2" x 12" (less gauge and valves)
- Pressure relief valve (installed)
- Air chamber fill valve (installed)
- Pressure gauge (installed -- can be removed and remote-mounted if desired)
Required parts, sold separately:
1 Quart Accusump Mounting Clamps (Part No. 1238)
Flow control valve: Either the Manual Accusump Valve (Part No. 1248) or an Electric Accusump Valve Kit (Part No. 1245) can be used.