Anyone know what this is?
Elder User
Joined: Jun 2015
Posts: 791
Likes: 11
From: Louisville
Yeah, early engine designs were made for cars that had few belt driven accessories and as such their mounting pads were cast pretty far back on the engine block. Later, as they began installing more and more options (p/s, a/c, thermactor pumps, bigger alternators, etc.) they needed to counterbalance the added weight by adding the tailshaft bobs.
Logistics Pro
Joined: Sep 2014
Posts: 4,920
Likes: 21
From: Bothell & Silverdale, WA
No, Ray is correct. It's a static harmonic balancer. It absorbs and dissipates certain frequency harmonics at the opposite end of the engine. The rotating balancer is at the other end on the crankshaft. The need for these was overcome by engine design changes.
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