SallaM dear member..
Today I touched my mehran07 oil filler cap...but it was loosened and was not able to tight..I remove the cap and noticed that the oil cap fastener piece was not there...perhaps it would hav fell inside the taopet cover..when mechanic opened the tapet cover he found no iron pieces there...he told me that those pieces fell inside the oil pump filter and console me not to worry about it...i need ur expertise opinion on that case...whether it would damage my engine or not....car is running like before without any problem..
Thank u.