1982 Plymouth Sapporo Automatic TransFACTORY OEM SERVICE PROCEDURE

Valve Clearance

NOTE: Jet valve clearance must be adjusted before adjusting intake valve clearance. Loosen intake valve adjusting screw at least 2 full turns before adjusting jet valve.

Check or adjust valve clearance with engine off, at normal operating temperature and with coil wire to distributor disconnected. To adjust valves, loosen lock nut and turn adjusting screw until specified clearance is obtained.

VALVE CLEARANCE SPECIFICATIONS

Application Clearance
Jet .006" (.15 mm)
Intake .006" (.15 mm)
Exhaust .010" (.25 mm)
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.