LeSabre Estate Wagon V8-350 5.7L DSL (1982)
Water Pump: Technical Service Bulletins
Water Pump - Usage
Bulletin 84-6-14
Date
Dec. '83
Ref. No. 84-071-6
SUBJECT:
WATER PUMP USAGE
MODELS AFFECTED: 1980-84 LESABRE, ELECTRA, & RIVIERA WITH 5.0L V-8 GAS ENGINE (VIN CODE Y) OR 5.7L V-8 DIESEL
ENGINE (VIN CODE N)
Water pump service package no. 556283 available from WDDGM, now contains a pump with a sheet metal impeller. This pump is also being used on
production engines.
Dealer Bulletin 80-I-86, Group 60, Number 21 issued March, 1980 defined criteria for a cast iron impeller. It stated it must have square vanes and a
maximum of .045 inch clearance. It is no longer necessary to be concerned about these items if a new pump with the sheet metal impeller is used.
