Engine - Service Parts Identification
Bulletin 85-6-8ADate June, '85
Ref.. No. 85-158A-6
SUBJECT: 2.8L V6 ENGINES SERVICE PARTS IDENTIFICATION
MODELS AFFECTED: 1985 CENTURY AND SKYLARK (VIN CODES X AND W)
NOTICE: This bulletin supersedes Bulletin 85-6-8 dated March, 1985. Please discard the original bulletin and replace it with this one.
This bulletin is to identify the engines used and establish service parts usage for certain 1985 vehicles.
Two (2) designs are used for 1985 production of the above engines and are referred to as "carryover design" and "new design".
The carryover design uses crankshaft and block service parts, unchanged from the design used in 1984. The new design incorporates larger crankshaft main bearings and a new rear main crankshaft oil seal.
The engine used in a vehicle can be determined by the engine date code stamp and must be established before ordering service parts. The date code and associated service parts are shown in the attached table.
CARRYOVER - 1984 DESIGN NEW DESIGN
ENGINE DATE CODE* ENGINE DATE CODE*
A050723 thru A050829 and beginning with K0730.** Beginning with A050901 and Beginnng with T0730.**
PART NAME PART NUMBER PART NUMBER
Crankshaft 14089826 14077817
Crankshaft Seal Unit 14081761 14085829
Bearing Unit Crk. # 1 Standard 18005226 18012472
.016 U/S -------- 18012474
.032 U/S 18004998 18012475
#2 Standard 18005227 18012473
.016 U/S -------- 18012476
.032 U/S 18004999 18012477
#3 Standard 18005225 18012478
.016 U/S -------- 18012479
.032 U/S 18004579 18012480
#4 Standard 18005228 18012472
.016 U/s -------- 18012474
.032 U/S 18005223 18012475
Cylinder Case and Piston Assembly -------- VIN Code W 14089003
VIN Code X 14089004
Partial Engine Assembly --------
VIN Code W 14089007
VIN Code X 14089008
* Engine date code is stamped on the horizontal machined surface on the block just forward of the intake manifold between the cylinder heads.
**In Engine Date Code: A = Ramos, Mexico
K = St. Catharines, Canada T = Tonawanda, U.S.A.