Fiero V6-173 2.8L (1986)
Valve Body: All Technical Service Bulletins
A/T - Evaluating Peened Spacer Plates
Bulletin Number:
91-7-37
Reference Number:
177120
Publish Date:
8/91
Subject:
EVALUATING PEENED SPACER PLATES
ALL AUTOMATIC TRANSAXLES AND
AUTOMATIC TRANSMISSIONS
(SERVICE INFORMATION)
Models
Affected:
1982-1991 ALL MODELS
BULLETIN COVERS: Some spacer plate peening is considered acceptable and preferred because it can help seat the check ball. This bulletin will help
you decide if a spacer plate needs to be replaced due to a peening condition.
SERVICE PROCEDURE: The following two procedures can help determine if the spacer plate can be reused. The following must be performed at all
check-ball locations.
Figure 1
1.
The spacer plate must be inspected 100% for raised material on the opposite side of the check-ball seat (see Figure 1). If the material on the
opposite side is raised, the peening is too severe and the spacer plate must be replaced.