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BMW S54 DUAL VANOS REBUILD
®
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Step 13:
Step 14:
Insert the intake piston into the cylinder from the inboard side (opposite
the cap) and wiggle it around gently until it slides through the new Teflon
sealing ring in the cylinder. Allow it to remain installed for one minute,
then remove it. This process will fully seat the Teflon ring in the cylinder.
Now insert the piston into the outboard side (cap end) of the cylinder
as shown, wiggling it around gently as needed until it pushes into the
cylinder. Allow it to remain installed for one minute, then remove it. This
process will fully seat the Teflon ring onto the intake piston.
SECTION 3C: INTAKE PISTON SEAL REPLACEMENT
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