Spent the sunny afternoon today lying underneath my 1930 Tudor, listening to a fast knocking sound coming from my oil pan. Sounds is as if you put a nut into a metal can and shake it, or like a defective ball bearing would (except there is not supposed to be any ball bearings in there, of course) Holding my doctor wife's stetoscope to the oil pan bottom, the sound is clearly loudest just under the oil pump, that is in the drain plug area. Any ideas what to expect? May the oil pump make such a knocking?
Oil pump knock?
- Thread starter MikeMort
- Start date
Fred K-OR
Well-known member
Hope the wife does not need that stethoscope anymore. Sorry I do not have any constructive ideas. I have had similar noises but they seem to go away after the engine warms up after a few minutes. Does yours go away? Do you have adjustable valve lifters? Maybe the lifters need adjustment. Others on the Barn I am sure may have better ideas.
Tom Wesenberg
Well-known member
I think you have to drop the pan and check the oil pump and bearings.
Something isn't right, and it can only get worse.
Something isn't right, and it can only get worse.
1930artdeco
Well-known member
Mine makes that noise but from the mesh between the oil pump and cam shaft.
Mike
Mike
Mike V. Florida
Well-known member
Is it pumping oil?
Call Berts, order another pump, I think yours is cracked.
Call Berts, order another pump, I think yours is cracked.
James Rogers
Well-known member
Center main. Better drop the pan and check it. The main knock is transferred to the pump and sounds loudest there because that is where it contacts the pan through the tension spring.