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This information bulletin outlines the proper steps to index the camshafts with the crankshaft. In the event that camshaft timing has been disrupted, due to timing belt breakage or camshafts/crankshaft being rotated without a timing belt, this is important prior to timing belt installation. Due to the gear-ratio used by each camshaft pulley to drive the camshafts, engine timing cannot be indexed conventionally.
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Picture 4 and 5 should be reversed to match the text. This should give you the proper procedure to set every thing up correctly.
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After cylinder head servicing as outlined in the appropriate Workshop manual, proceed to the following steps
NOTE: There is a 0.039 lubrication hole drilled into the idler gear retaining cover. Always inspect this hole for obstruction.
IMPORTANT: Do not use a liquid gasket material on the idler retaining cover. Always replace the retaining cover with a new 0-ring. Be sure to lubricate the 0-ring prior to installation.
NOTE: Use special J-tool J-42686. Once the sub-gear has been pre-loaded, install the 5 mm bolt supplied with the tool and insert it into the camshaft from the back of the camshaft gear assembly. Tighten the bolt to lock the sub-gear in place.
IMPORTANT: When the sub gear is pre loaded, the teeth on the sub gear should be aligned with the teeth on the camshaft gear.
NOTE: Before installing the camshafts, pre-lube the cam lobes using a suitable molybdenum assembly grease.
IMPORTANT: The single dot on the camshaft gears must be aligned with their corresponding marks on the idler gear. Also, do not remove the 5mm bolt holding the sub-gear, until the camshaft journal caps are installed and the bolts are torqued.
IMPORTANT: Do not re-use the cylinder head bolts.
NOTE: It may require up to 9 revolutions.
IMPORTANT: Due to the loss of the reference timing, you will have to rotate this camshaft sprocket until the timing mark on the camshaft sprocket "springs" into the 120 'clock position. This may require up to 9 revolutions. If the camshaft does not spring to the 12 0 'clock position, camshaft timing will be incorrect.
NOTE: Install the timing belt following the procedures outlined in following steps. Make sure that timing marks are not disturbed during this operation. After installing the timing belt, make sure that all the timing marks are in their proper position. It is very easy to mis-install the belt and be off a tooth, which could cause driveability problems.
NOTE: On the timing belt, there are series of green arrows indicating the direction of rotation. There are also two solid white lines and one dotted white line. Ins tall the belt with the solid lines perpendicular to the marks on the camshaft sprocket. (figures 13 and 14)
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