Re: 1940 Custom Oil Canister and Low Compression

Posted by todd landis On 2014/10/26 13:46:14

Back at this, needing some clarification on this. Put in new less restrictive filter, and Rotella oil. Still lifter noise, also ran the straight line from pump to galley. So either damage to lifters already done. So will probably will need to do another valve job, with either new lifters and, or properly adjusted valve stem clearance.
What I still cannot understand at this and other forums. If you have the direct line, and the filter canister, almost everyone is calling for a restriction in the filter line. Why is that needed? Is there too much oil or pressure getting to the galley? Would not the filter itself act as a restriction? Wouldn't you want as much oil as possible getting to the galley?
I must be getting (am)old but don't understand the theory of having two paths of oil to galley, then restricting one.