VAC Technician's Tips: This shim is to be installed by a machinist or technician who has experience with the VANOS internals and is competent with camshaft timing. There are no instructions for this item. Limiting travel assures reliability and provides the safety margin necessary when the VANOS is at full advance. This modification is NOT required or beneficial when using OEM or the 264/256 Schrick camshafts.
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