ECS Tuning BMW S54 - Oil System Service

ECS TUNING 1000 SEVILLE RD. WADSWORTH, OH 44281 1.800.924.5172 WWW.ECSTUNING.COM
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BMW S54 DUAL VANOS REBUILD
®
Return to Vanos Repair Table of Contents
Step 1:
Step 2:
Inspect the revised oil pump rotor in your kit. Two new holes have been
machined into it and sized properly to fit the oil pump drive tabs on the
Vanos exhaust hub. You’ll notice that the new holes are smaller, which will
eliminate tab breakage over time resulting from a continuous impacting
between the tabs and the large holes.
Closely inspect the oil pump drive tabs on the Vanos exhaust hub. Make
sure they are not worn or cracked. If these are visibly worn, you will have
to order a replacement hub.
SECTION 3B: VANOS OIL SYSTEM SERVICE
New Oil Pump
Drive Hole
New Oil Pump
Drive Hole