1981 Subaru GLF Automatic TransFACTORY OEM SERVICE PROCEDURE

Alternators & Regulators - HITACHI Alternators: Testing: Notes

NOTE: Some testing is described as part of Overhaul procedure in this article. The following testing is performed with alternator on the vehicle.
SPECIFICATIONS

Alternator Output
Alternator Amps@ 2500 RPM(1) Amps@ 5000 RPM(1)
LR150-52 40 50
LR150-98 40 50
LR150-99 40 50
LR160-78 50 60
LR160-82 50 60
LR160-125 42 50
LR160-133B 42 50
LT140-126 30 40
LT150-114B 50 55
LT150-120 42 53
LT150-131B (2)17 50
LT150-144 40 50
(1) Alternator RPM.
(2) At 1250 RPM.
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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.