Re: Bad Day
It could have been worse....
Good opportunity to drop the pan, clean-out the sludge, check the bearings... etc.
Also, when replacing timing gear, it's best to replace the plunger and spring in the front timing cover: this keeps pressure against the cam-shaft. Frequently, the springs break from fatigue, and just collaspe in their bore, allowing the cam to "walk" back and forth, causing a pounding noise that sounds much like a bad rod-bearing: the noise is the cam-gear slamming forward into the timing cover.
Lost a Westinghouse-Micarta cam gear in my '28 due to this last summer; fibre gear finally separated from the metal hub.
When I replaced the gear and buttoned everything back up, and fired-up the engine, my "rod-knock" had mysteriously disappeared...
|