Regal V6-231 3.8L Turbo VIN 8 4-bbl (1983)
Wheels: All Technical Service Bulletins
Wheels - Cast Aluminum Wheel - Porosity Repairs
Bulletin
89-3-7
Date
Jan., '89
Ref. No.
89-058-3
Corp. Ref. No.
783505R
SUBJECT:
CAST ALUMINUM WHEEL POROSITY REPAIRS
MODELS AFFECTED:
ALL BUICKS WITH ALUMINUM WHEELS
This bulletin has been revised to change the PSI frm 50 to 40 and to clarify Step # 8. This bulletin replaces Dealer Service Bulletin 87-3-9 which should
be discarded.
Should a vehicle equipped with cast aluminum wheels exhibit a slow leak due to a porous condition existing in the wheel, the wheel can be repaired by
using Dow Corning Silastic 732 RTV, part number 1052366 or equivalent, as described in the following procedure:
1.
Remove wheel and tire assembly from car.
2.
Locate leaking areas by inflating tire to 40 PSI and dipping wheel-tire assembly into water bath.
3.
Mark leak areas and remove tire from wheel.
4.
Scuff inside rim surface at leak area with # 80 grit paper and clean area with general purpose cleaner, such as 3M # 08984 or equivalent.
5.
Apply 1/8" thick layer of adhesive/sealant to leak area and allow six hours of drying time.
6.
Mount tire on wheel, pressurize to 40 PSI and check for leaks.
NOTICE:
Caution must be used when mounting the tire so as not to damage the sealer.
7.
Adjust tire pressure to meet specifications.
8.
Balance wheel and tire assembly using nylon coated wheel weights.
9.
Water test wheel again.
10.
Reinstall wheel - tire assembly on car.
WARRANTY INFORMATION
Labor Operation Number:
T3032
Time Allowance:
.6 hours
Trouble Code:
92
