ECS TUNING 1000 SEVILLE RD. WADSWORTH, OH 44281 1.800.924.5172 WWW.ECSTUNING.COM
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BMW S54 DUAL VANOS REBUILD
®
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Step 5:
Step 6: 10mm Hex Bit (Allen) Socket, Ratchet
The upper timing chain guide bolt is located on the RH (Passenger) side
of the front timing cover, near the top where the Vanos piston housing is
mounted.
Loosen the upper timing chain guide bolt, then pull it part way out. Make
sure you get a good grip on the timing chain guide, then pull the bolt the
rest of the way out and remove the guide.
SECTION 4D: UPPER TIMING CHAIN GUIDE REPLACEMENT
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