ECS Tuning BMW S54 - Page 41

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 3:
Step 4: Exacto Knife
Inspect the intake piston. One end has a groove with a rubber o-ring
surrounded by a Teflon sealing ring.
Carefully cut the sealing ring and o-ring using an exacto knife, then
remove them from the piston ring groove.
SECTION 3C: INTAKE PISTON SEAL REPLACEMENT
Use caution not to cut or damage the surface of
the intake piston.