Just took a call from the shop where my recently acquired 01 LS sport is getting a timing belt, coolant bypass install and an alignment.
The balancer had three bolts and the fourth bolt hole had a plastic fastener in it that you would use for holding on a fender liner.
wow!
Mine had the fourth bolt broken off and had been that way for years. I fixed it when I did the timing belt, but it made an entire timing belt cycle that way.
In reply to Cousin_Eddie :
That's reassuring, and I guess it explains how I haven't lost the entire reciprocating assembly yet. It's seen 7,000 RPM several times since I bought it.
I had a 302 ford that had a cracked hub on the balancer, causing a slight vibration. Took the car in for diagnosis, and they found that the rear transmission mount on the C4 was bad. After that was replaced, the vibration was much worse. Somehow, the balancer didn't break off, and scatter the engine. Unfortunately, it was loose long enough to wear down the hub of the crank, so that the new balancer didn't fit. Nothing that an entire rebuild didn't fix. Recently I was told that it could have been sleeved. Oh, well.
I definitely will be happy to buy a new balancer, instead of an engine. I'm going to replace it with a new stock balancer. This one is starting to lose the rubber from the center. The good news is that it looks brand new under the valve cover. May have been replaced at some point, so let's hope that the rod and main bearings were torqued properly.
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