Calais V6-3300 3.3L MFI VIN N (1990)
Sunroof / Moonroof Weatherstrip: Technical Service Bulletins
Vista Vent (Sunroof) Seal - Revised
SUBJECT
VISTA VENT WATER LEAK-REPLACE SEAL
MODELS/YEARS
1985-90 CUTLASS CALAIS MODELS
NUMBER:
90-T-125
CORP.REF.NO: 671501R
DATE:
June 1990
SECTION:
10-9
A new vista vent (sunroof) seal was released for 1985 and 1986 Cutlass Calais models with Option AD3 and is continued for service through the 1990
model year. This part is to be used whenever replacement of the vista vent seal is required. The seal is available through GMSPO under part no.
20698162 and should be installed observing the precautions outlined in this bulletin.
CONDITION: Vista Vent Leaks
When Investigating vista vent water leaks, four areas should be checked:
A -
Leaking between glass and seal
B -
Leaking between the seal and retainer
C -
Leaking between the module and roof panel
D -
Leaking between the hinge or latch attaching nuts and the glass
CAUSE:
Conditions "A" and "B" are due to improper sealing between the glass and seal or improper adhesion to the retainer.
Condition "C" is due to improper bond of the module to the roof panel due to voids in the urethane adhesive.
Condition "D" is due to missing, mispositioned, loose or split nut seals.
CORRECTION:
Conditions "A", "B" AND "C" proceed as follows:
NOTE:
Exercise care in the removal and clean-up steps to not damage the painted surfaces as rust could form.
1.
Remove the old sealing strip.
Figure 1
2.
Remove any excess urethane or sealer from the area between the retainer and root panel opening. (Fig. 1 (A))
3.
Remove all old adhesive from inside of the retainer using a hard piece of plastic as a scraper (to prevent damaging paint). Adhesive remover or
