1983 Chevrolet Sportvan G10, 5.7 LFACTORY OEM SERVICE PROCEDURE

Pressure Test Specifications

PRESSURE TEST SPECIFICATIONS

Application psi (kg/cm2 ) @ Idle Relief psi (kg/cm2 )
C10/30 80-125 (6-9) 1200-1300 (77-84)
G10/30 80-125 (6-9) (1) 900-1000 (63-70)
(1) G30 with hydroboost, pressure is 1350-1450 psi (95-102 kg/cm2 ).
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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