M/T Oil Drain Plug - Replacement
CATEGORYMaintenance
SECTION
1
PAGE
30
ISSUE
05/93-0327
CODE
110
Supersedes 05/91-0109
Service Directive
Subject:
Replace Engine Oil Drain Plug
Application:
900 1990-1/2 - 1991-1/2
During mid-1991 900 production, the engine oil drain plug in the manual gearbox case was changed from 19 mm (wrench size) back to one with a 13 mm head. This change was made to reduce the possibility of overtightening the drain plug which can crack the gearbox case, Figure 1.
If not yet done, the 19 mm drain plug must be replaced with the 13 mm head drain plug. Do so at the next service opportunity, regardless of whether the car is scheduled for an oil change at that time.
NOTE
This PSI is identified as a "Service Directive," meaning that affected cars should be corrected before delivery if possible, or at the next service opportunity, regardless of whether there has been a customer complaint. A "Service Directive" differs slightly from a "Campaign". Owners are not notified to bring their car in for unscheduled service under this procedure. This bulletin combines updated original PSI information and the October 1991 Warranty Policies and Procedures Manual update to Service Directive Status.
Cars Affected:
1990-1/2 - 1991-1/2 900 Models with the following gearbox serial numbers:
^ A07249-
(Production ended on gearboxes for line A)
^ B03790 - B25931
Parts Required:
13 mm Drain Plug P/N 87 31 762
Steel Drain Plug Washer P/N 87 28 057
Action Required:
WARNING
DO NOT OVERTORQUE DRAIN PLUG
Torque Specification: 21-29 ft.lb. (29-39 N-m)
For installation procedures, refer to Figure 2.
Replace the 19 mm drain plug with the 13 mm plug and steel drain plug washer. Torque to specification.
Warranty Information:
NOTE
Gearbox case damage solely related to improper drain plug tightening is not covered by warranty.
For warranty claims, use failure coding 21719-02-0-01-01. Labor Time Allowance is 0.2 hr which should be entered as straight time. This directive applies to all applicable cars regardless of age or mileage.
Warranty will accept 1 quart of oil for topping up.