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IH: Oiling & Lubrication - Sub-03A

77-85 Oil Pump Pics and Approximate Dims

77-85 Oil Pump Pics

Oil Pump Cover

Oil Pump Body

Gear Shaft

Gear Shaft Retaining Ring

Gear Shaft Pins

Check Valve

Brand:
Circle Seal
Manufacturer Part Number: P106-376
Patent #3626977

Gerotors

Feed Gerotors

77-E83 Chamfered Feed Gerotors
(can also be used on L83-85 oil pumps). 1)

Return (scavenge) Gerotors

77-E83 Chamfered Return Gerotors
(can also be used on L83-85 oil pumps). 2)

Separator Plates

Inner Plate

Outer Plate

Outer Separator Plate Seal

Seal 1

Seal 2

Spring Washer

77-85 Oil Pump (Approximate) Dims

Oil Pump Cover Dims

Oil Pump Body Dims

Gear Shaft Dims

Gear Shaft Retaining Ring Dims

Gear Shaft Pin Dims

Gear Shaft Bushing Dims

Check Valve Dims

Brand:
Circle Seal
Manufacturer Part Number: P106-376
Patent #3626977

Gerotor Dims

Feed Gerotors

77-E83 Chamfered Feed Gerotors

Return (scavenge) Gerotors

77-E83 Chamfered Return Gerotors

Separator Plate Dims

Inner Plate

Outer Plate

Spring Washer Dims


1) , 2)
HD Service Bulletin #M860 dated November 12, 1982 pg 2
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