The late 720 and early D21 Hardbody had the Z24i engine which had a CAS. The CAS was almost exactly like and in thew same position as the distributor. It was driven off the crank. The CAS is much improved over the distributor it replaces. The old distributor had a slot and a screw driver like blade that fit into it. It is sloppy and not that stable. The CAS used a spline and even the later KA engines used this.
d21 z24 carburated strange rattling noise
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