850 T-5R L5-2.3L Turbo VIN 58 B5234T5 (1995)
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Clean mating surfaces.
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Replace seal, use drift tool No. 999 5455, or equivalent, grease seal.
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Press in seal using the crankshaft center nut.
4. Remove the oil pump:
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Undo the four oil pump bolts.
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Carefully pry out oil pump, use a groove-cut chisel behind pry lugs.
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Clean seal face and mating surfaces.
5. Dismantle oil pump:
Clean and check all components:
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Check for wear and damage, pay particular attention to the crescent shaped insert (surface between suction and delivery sides).
If components are defective replace pump.
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Separate parts are available for the relief valve.
Spring Tension (Part 1 Of 2)
6. Test relief valve spring Load (N):
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Load (N) / Length (mm)
0:
82.13 mm
59 ± 4:
56.10 mm
108 ± 8:
39.90 mm
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Relief valve opens: 0.60 MPa (85 psi)