Engine - New Oil Pump Cover

BULLETIN NO.: 97-T-15A

ISSUE Date: June, 1997

GROUP/SEQ. NO.: Engine-03

CORPORATION NO.: 786103R

SUBJECT:
Service Information on New Oil Pump Cover

Due to the addition of claim information, this bulletin supercedes 97-T-15, which should be discarded.

MODELS AFFECTED:
1991 - 1996 Saturns built before and including VIN TZ320852

PURPOSE:
A design change to the oil pump cover was made during the 1996 model year to help lubricate the timing chain system by directing a constant flow of oil onto the timing chain. This was done by adding a, 1 mm hole to the oil pump cover.

When servicing a timing chain on all vehicles built before and including VIN TZ320852, install a new timing chain kit P/N 21008552 (SOHC-LK0/L24) or P/N 21008553 (DOHC-LL0). Follow the procedures under oil pump replacement in the appropriate year "Engine/Fuel/Air Intake/Exhaust Service Manual," or "Engine Mechanical Service Manual."

When servicing a timing chain on vehicles built after and including VIN TZ320853, the timing chain kit is not required, replace only applicable parts.

IMPORTANT:
When replacing the oil pump cover, new oil pump cover bolts (P/N 21006630) must be used.

The first design oil pump cover (P/N 21000718) will no longer be available from Saturn Service Parts Operation.

PARTS REQUIREMENTS:
21008552 Kit-Timing Chain - SOHC (LK0/L24)
21008553 Kit-Timing Chain - DOHC (LL0)

Timing Chain Kits contain:
Cover - O/Pmp
Chain Asm-Tmg
Tensioner Asm - Tmg Chain
Guide-Tmg Chain (1 Fixed, 1 Pivot)
Sprocket-Cm/Shf (2-DOHC, 1-SOHC)
Sprocket - Cr/Shf
Bolt/Screw-O/Pmp Cvr (Qty 9)

CLAIM INFORMATION:
To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System using the appropriate Electronic Labor Time Guide and Labor Operation Code J0824 (Install Timing Chain Kit).