However, even though the liftersĪre being held out of the way in their respective buckets, there is still a chance for one or more lifters to accidentally fall out, which would then require cylinder head removal in order to retrieve the lifter(s). The camshaft is now ready for extraction. Remove the camshaft sprocket and timing chain. There is no access to the lifters at the top valley, and there’s no need to remove the lifters anyway. There is no need to remove the intake manifold or the upper engine cover plate.
The buckets) avoids the need to remove the heads). Leave the rods in place until the new camshaft has been installed. If one or more lifters accidentally fall out of the “locked” position, the rods will prevent the lifter from dropping into the path of the cam. As a safety precaution, once the camshaft retainer plate has been removed, insert a pair of clean metal rods through the two lifter oil galleys. The cam grip registers to the camshaft nose dowel pin and is secured with one or more bolts (the grip will accommodate a single-bolt or three-bolt style camshaft).Īfter rotating the crankshaft two full turns with the rocker arms removed, the cam lobes have pushed the roller lifters up into their guide buckets, which provides a clear unobstructed path for cam removal or installation. When servicing the camshaft on an LS engine, there’s no need to remove the intake manifold or top engine cover, but you will need to disassemble the front of the engine and remove the oil pan. Note that in order to remove the lifters, the cylinder heads must be removed.
“snug” into the lifter buckets, holding the lifters up and away from the camshaft, allowing a clear path for camshaft removal without the need to remove the lifters.
With no valve spring pressure, since the rockers have been removed, the lifters will (By rotating the crank two full turns, this causes the camshaft lobes to push the lifters up into the plastic lifter buckets. NOT rotate the crankshaft at any time during the process. Rotate the crankshaft two full turns (360 degrees), and position the crank gear and cam sprocket dots (cam gear dot at 6-o’clock and crank gear dot at 12-o’clock).
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