454 Chevrolet being tested before delivery

SIMTEST QC180

Quality Control engine test station

All engines are tested prior to delivery

OIL PRESSURE

OIL IS PREHEATED TO 130 DEGREES AND THIS TEMPERATURE IS MAINTAINED

THROUGHOUT THE TEST TO INSURE CONSISTENT VISCOSITY. THE OIL IS FILTERED

THREE TIMES, FIRST WITH FILTER MEDIA IN THE OIL CATCH TRAY, SECOND A

5 MICRON FILTER, THIRD A 25 MICRON FILTER. OIL PRESSURE IS RECORDED AND

COMPARED TO OUR STANDARDS FOR THE ENGINE TYPE. THE OIL PRESSURE

RECORDED ON YOUR INSPECTION ENVELOPE IS METERED FOR CONTROL

REASONS AND WILL NOT RELATE TO THE OPERATING OIL PRESSURE

ONCE THE ENGINE IS INSTALLED IN THE VEHICLE.

OIL FLOW

THIS TWO STEP PROCESS INDICATES ANY REASON FOR EXCESSIVE INTERNAL

OIL LEAKAGE. POSSIBLE CAUSES COULD BE EXCESSIVE BEARING CLEARANCE,

LEAKING OR MISSING PLUGS, IMPROPERLY INSTALLED CAM BEARINGS ETC.

WE VISUALLY INSPECT FOR EXCESSIVE OIL BLEED OFF AND COMPARE

HOT OIL FLOW NUMBERS TO OUR STANDARDS FOR ENGINE TYPE

ROTATIONAL TORQUE - 30 RPM & 350 RPM
EVERY ENGINE HAS INTERNAL FRICTION. WE RECORD THE AMOUNT OF AMPERAGE

REQUIRED TO ROTATE THE ENGINE AND WATCH FOR TORQUE SPIKES DURING ROTATION.

WE COMPARE THE READOUT TO OUR STANDARDS FOR THE ENGINE TYPE.

VALVE ADJUSTMENT
DURING THE ROTATIONAL TEST THE HYDRAULIC LIFTERS ARE CHECKED TO INSURE THAT

THE LIFTER PLUNGER IS ADJUSTED PROPERLY, THE LIFTER IS FILLED WITH OIL AND HAS

BEEN PURGED OF ALL AIR. MECHANICAL VALVE ADJUSTMENTS ARE RESET

WITH THE ENGINE ROTATING. LIFTERS ARE CHECKED FOR ROTATION

(LIFTERS MUST ROTATE OR THE CAM LOBE WILL GO FLAT).

ROCKER ARM OILING IS CONFIRMED.

COMPRESSION TEST

A CRANKING COMPRESSION TEST IS PERFORMED AND THE RESULTS OF

THE TEST ARE RECORDED ON YOUR INSPECTION ENVELOPE.

A VARIATION OF MORE THAN 10% IS CAUSE FOR REJECTION.

TORQUED FASTENERS

ALL TORQUED FASTENERS ON YOUR ENGINE ARE FIRST CHECKED BY THE ASSEMBLY

PERSON WHO ASSEMBLES THE ENGINE AND SECOND BY THE QUALITY CONTROL TESTER.

ON TORQUE TO YIELD TYPE BOLTS WE DO NOT YIELD THE BOLTS TWICE.