Pictures are really necessary to respond to the OP or danroo.
I would tend to agree with SuperUnknown that if metal has passed through the oil pump, the problem would exhibit with a loss of oil pressure, a failed lifter, damaged inner cam bearing, stuck pressure relief valve, etc. However, I would reserve comment until I saw pictures.
If either case if there was no symptom that there was a problem with the oil pump, I would not be concerned in either case after further inspection of the related parts that would be affected by foreign material passing through the oil pump.
There is no oil screen in the TC motors.:s