Hi Metalho
The two piece timing gear shown has history of hub breaking loose from fiber. Poor quality. The best is all fiber gear as this is protection if valve or cam locks up. Gear will break up instead of causing severe damage.
Questions come to mind. Does the noise lighten up or change when spark retarded. Can you change noise by grounding out spark to each plug.
If noise changes when re tarting spark or grounding plug, problem is probably in power train. Pistons rod bearings. If noise does not change it is...
The Antique Engine Rebuilding rods that I have used all fit perfect as the piston manufactures have great precision in making a 1.0000 pin. The old practice was to pin fit rod last .002 or .003 as stated as if you were using worn pins. To have hone out .017 is past reasonable. Rebuilt...
I just bought a set of Snyders rods and I am sorry. They said in the information that the wrist pin was rough bored. Well it is very rough! The bushing is only pressed in and must be cut off and chamfered and then .017 stock of bushing must be honed out. This took my local machine shop over...