motors

[66AC]

Originally Posted by hauss

What did the components look like? Wear on pistons cylinders bearings and such?

The actual reason the motor was rebuilt was due to an abnormal amount of wear on the woodruff key slot on the crank. The key, over time somehow was worn allowing the toothed gear for the timing chain to wander. This key eventually broke causing a backfire and the timing to go off. A few valves kissed the piston surfaces. So the forensics were that a shroud which holds the key in place was really never good and allowed the key to wander out a bit. The key became battered somewhat. The wear on the engine was minimal especially the bores. The engine builder mildly honed the bores. All new parts were fitted in the rotating assembly and as described. Essentially now the motor is fresh and runs really well so far. With the miles I put on the engine per year (est. 3000 yearly) it was actually in very fine shape after 26 years of use. My clutch plate was also replaced with a Centerforce and also the flywheel was replaced at the same time.