VCCA Home Forums TECHNICAL - 1945 AND EARLIER 1933-1936 Chasing engine noise

About the fuel pump, any suggestions as tro a cure? Bend the arm? As far as shifting too fast, you are right, I was to busy concentating on my granddaughter and the recording and was't paying attention. I'm usuallu better than that.

If it is the fuel pump you could feel the 'NOISE" BY PUTTING YOUR HAND ON THE PUMP.

Done that. Didn't "feel" anything.

Hearing your engine....your engine does not sound to bad. It sounds like mine. I have both '36 car and truck. These Babbitt rod engines are more noisy than modern ones by a lot. I do not hear any "knocking or thumping" sounds. Sounds like tapping/clicking are not so important. I do not hear those in access either. I do hear normal clicking sounds. I will tell you that hearing over the net is not like actually standing there. If it was my car I would run it as is. That is what I think.

I certainly hope you are right. I may be fussy having been spoiled by silent engines before. I think it takes away from the overall enjoyment of the car. It is just that I know that "better" is possible.

The engine in my 1934 was very silent except for a little tappet noise during warm-up.

Yes, there are quite engines but they may have brass in place of lead. Brass valve guides, brass on the connecting rod and connecting rod bearing cap. They can be made to "be quite". Then the question becomes is it original or sort of?

The only brass busings used were the ones pressed into the piston for the wrist pin and pressed into the rocker arms on pre 1941 engines. The valve guides were steel and rod and main bearing babbitt, a lead mixtrure.

I remember a dead quiet 48 sedan and a 31. I remember a 48 GMC truck that sounded like mine does now. This big girl is likely the cause of my yearning for quietness. If it hadn't had a fan, you would never have known it was running.

My 41 Olds 6 fuel pump tick is the only noise i hear on idle. Got 2000 miles on engine after rebuild. Hope it stays this quiet. There was another tinkling noise on idle and i found the fan pulley cracked where it bolts to the water pump.

Fuel pump "click" my be due to the springs in the fuel pump being "weak". The weak springs do not have enough pressure to keep the fuel pump rocker arm in contact with the cam shaft eccentric.

The other thing could be a worn rocker arm pin in the "link, rocker arm" (arm that rides on the camshaft). Also, looking at the link, rocker arm (in fuel pump) at the diaphragm push rod where it hooks onto the push rod for an egg shape.

All of this is oiled by splashing of oil in the oil pan area as well as oil on the camshaft slinging. Removing the fuel pump to see if the opening through into the block is not plugged up with sludge. That the fuel pump is receiving splashing oil.

Thanks Terrill, lovely straight 8 Pat S