A/T - Oil Pan Leakage
89saab05FILE IN VOL.
S.I. Man I
SEC. PG.
A-4 103
ISSUE: 06/89-1153
SUBJECT: OIL PAN LEAKAGE
APPLICATION: ALL 900 MODELS WITH BORG-WARNER TYPE 37 AUTOMATIC TRANSMISSIONS
CONTENTS: General Information P. 1
Parts Required P. 2
Repair Procedure P. 2-3
^ Oil Pans and Gaskets P. 2
^ Skidplate P. 3
Warranty Information P. 4
To help eliminate complaints of automatic transmission fluid (ATF) leakage, improved transmission oil pans and gaskets have been introduced into production as a running change on 1989 900 models. They may also be used as a service fix. The pan and gasket improvements consist of:
^ Modified front and rear oil pans.
^ Improved gaskets made of a new material containing a thin, sheet-metal lamination for reinforcement.
^ Two-piece reinforcing frames for each pan.
^ Longer screws with integral washers.
The improved pans and gaskets were introduced as a pilot series from transmission numbers 013-6514 to 013-6613. They were introduced into regular production beginning with transmission numbers 013-6950 and 014-5129.
Kits are available for both the front and rear pans to correct leakage complaints on transmissions before the gearbox serial numbers listed above. Earlier style oil pans have been superseded by the kits containing the new components.
NOTE
In the cases where the oil pans are being replaced to correct oil leakage, both the front and rear transmission oil pans should be replaced at the same time to prevent future leakage.
Along with the introduction of these new pans and gaskets, the recommendation for retorquing the pan screws at the 1000-mile service has been dropped. This also applies for cars that have these pans installed as a service fix. Retorquing of the securing screws should not be done because it can disturb the "set" of the gasket and result in ATF leakage.
To provide additional clearance between the new-style oil pans and the skidplate, a modified skidplate (P/N 40 07 449) with four dimples stamped into the front edge has been introduced into production starting with VIN's AJ7052666, AK3006038, AK7006870. Early style skidplates can be installed with spacer washers to provide adequate clearance. See page 3 of this S.I. for details.
Parts Required:
Description Qty P/N
Front oil pan kit 1 40 29 534
.Front oil pan 1 40 29 468
.Gasket 1 40 29 443
.Frame, stamped "013" 1 40 29 484
.Frame, stamped "014" 1 40 29 492
.Screws 12 40 29 526
For drain plug
Sealing washer 1 87 08 398
Description Qty P/N
Rear oil pan kit 1 40 29 542
.Rear oil pan 1 40 29 476
.Gasket 1 40 29 450
.Frame, stamped "011" 1 40 29 500
.Frame, stamped "12" 1 40 29 518
.Screw 12 40 29 526
For skidplate installation
Washer 4 80 73 249
Skidplate (if necessary) 1 40 07 449
Figure 1:
Figure 2:
Oil Pan Leakage Repair Procedure
NOTE
Never use the old-type gaskets with the new oil pans, or the old-type pans with the new gaskets.
1. Remove the transmission skid plate or protective bars.
2. Remove the transmission drain plug and drain the ATF.
3. Remove the old-style front and/or rear pans and gaskets.
4. Allow the ATF to drain thoroughly, overnight if possible.
5. Thoroughly clean the sealing surfaces of any remaining gasket material.
6. Check the sealing surfaces for flatness using a straightedge. If necessary, remove any high spots by lightly filing the surface. Thoroughly clean the field area to remove any metal particles.
7. Degrease the sealing surfaces using a suitable solvent. Also clean the new pans to remove any production oils.
NOTE
The transmission sealing surfaces must be clean and dry before installing the new pans and gaskets.
NOTE
Do not presoak the gasket. Do not supplement the gasket with any type of sealing compound or adhesive.
8. Install the new gasket, pan, and frames and secure using the longer screws provided in the kit.
NOTE
Do not overtorque the screws.
9. Torque the screws to 11 N-m (8 lb. ft.).
Figure 3:
Figure 4:
10. Reinstall the drain lug using a new sealing washer P/N 87 08 398).
11. Reinstall the protective bars or skidplate:
a. To install the old-style skidplate without dimples on transmissions with the new oil pans, four spacer washers (P/N 80 73 249) must be installed to provide the additional clearance needed (Figure 3).
b. If a damaged old-style skidplate needs to be replaced (not a warranty item), use the new skidplate, P/N 40 07 449 (Figure 4).
12. Fill the transmission with the required amount of Type F ATF.
13. Start the engine and check the ATF level.
14. Verify that there is no leakage from the front and rear oil pans. Check for any indication of leakage from the torque converter seal and side covers. Repair if necessary.
Warranty Information: For warranty claims, use the following failure coding/labor operation numbers:
NOTE
If both gaskets are being replaced at the same time, you still need to submit two claims, one on each failure code. However, the total time for both is 1.1 hours. Please use straight time on one claim to make total time equal 1.1.
1. Front (torque convertor housing) cover gasket leakage: 44043-50-0- 01-01 Labor Op. # 44043 (0.8 hour)
NOTE
Time for labor Op. # 44042 is changed from 1.1 hour. (Pg. 4-25 of 900 Failure Code/Flat Rate Manual). DCS dealers update from labor operation number tables.
2. Rear (main case bottom) cover gasket leakage: 44042-50-0-01-01 Labor Op. # 44042 (0.9 hour)