Quote:
Originally Posted by DavidG
Frank,
I use the original material timing gears. Please recall the millions and millions of miles the 1928-34 fours have run on gears made of that material (as well as most of the pre-WWII V-8s).
As indicated in my PM, the next step is to remove the old gear and verify that nothing is binding the camshaft, such as a rust-frozen distributor shaft.
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I would imagine that in newly manufactured gears the resins are fresh and would not determinate for decades? As could happen in adhesives and laminates over 80 years old.
I wonder if Ford chose this original material as a type of sacrificial safety "valve" that would shear off and prevent engine from being blown if any binding occurred?