no oil

[b_o_a_1000]

Hello I am a new member today. My ? is My 1969 350 engine is making clacking
noise. Oil pressure is 40 PSI,Good oil flow on Right side push rods, on or almost no oil from left side push rods. thank you

[Frog4]

clogged oil passage(s) ...

use an air compressor and needle tip air nozzle to blow them out or use a vacuum pump to pull it out ... and change your filter ...

[gonzo]

Also, flush the engine before changing oil.