While replacing the main seals on a B18 that was out of the car, I discovered that the timing gear on the camshaft had a good sized chip out of one of the teeth. I replaced it with another gear off of a parts engine I had in the shop. When I got the engine back into the car and started it, I noticed a noise that I initially thought was a wet belt. When I saw that the belt was dry, I thought it may have been a dry bearing in the generator or the water pump. I took the belt off, and started the engine. The noise was still there.
Is it possible that the used timing gear is making noise because it is wearing-in to a new crankshaft gear? Or is there something else I may have screwed up while putting it back together? Again, the noise is a constant kind of a "shhhh..." sound almost like a wet belt or gear noise in a transmission. It was a fiber gear, not steel. It concerns me, but I hate to have to take the timing cover off.
I would greatly appreciate any ideas or advice.
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1966 122s, 1968 142s, 1969 144s, 1979 245dl, 2001 V70 XC