Skyhawk L4-121 2.0L Turbo VIN M FI (1987)
Piston: All Technical Service Bulletins
Engine - Piston-to-Bore Clearances
Bulletin:
88-6-18
Date:
June, '88
Ref. No.: 88-142-6
Corp. Ref. No.: 836109
SUBJECT:
PISTON-TO-BORE CLEARANCES
MODELS AFFECTED: 1982-88 SKYHAWKS WITH L-4 OHV ENGINES (VIN CODES 1, G, P)
SERVICE MANUAL UPDATE
Service manual specification for the piston-to-bore clearance needs to be corrected. Following is the current model year correction, along with a
restatement of past model years:
1987-88 Skyhawks With VIN Code 1 Engines:
Piston-to-bore clearance
=
.001"
-
.0022"
(.025 mm
-
.055 mm)
Piston-to-pin clearance
=
.0004"
-
.0009"
(.010 mm
-
.022 mm)
1982 thru 1986 Skyhawks With VIN Code G, P Engines:
Piston-to-bore clearance
=
.0007"
-
.0017"
(.017 mm
-
.043 mm)
Piston-to-pin clearance
1982-1984
=
.0003"
-
.0004"
(.007 mm
-
.009 mm)
1985-1986
=
.0002"
-
.0007"
(Production)
(.005 mm
-
.010 mm)
1985-1986
=
.0004"
-
.0009"
(Revised Service Parts)
(.010 mm
-
.022 mm)
Please take appropriate action to correct your service manual and inform your service personnel.
This bulletin is for information only.