Thread: 383 oil issues

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If it has good pressure initially, and after running for a period of time the pressure drops to zero, its because the pump doesn't have any oil to pump---all your oil is probably upstairs-------------

A thing to try---time how long it takes for the pressure to fall and shut it off, wait 10 15 minutes and try again---same thing and time? now add 2 or 3 qts and see if it takes longer time---------If you want to be exact and truly scientific use 4 extra qts (1 in filter) and the time should double-----Quite possible the Canfield heads don't have the drainback holes drilled or they are in wrong place------------also look for casting flash/junk in the drains in the valley--------

Bring this ttt reference todays posts on same issue

Originally Posted by jerry clayton

If it has good pressure initially, and after running for a period of time the pressure drops to zero, its because the pump doesn't have any oil to pump---all your oil is probably upstairs-------------

A thing to try---time how long it takes for the pressure to fall and shut it off, wait 10 15 minutes and try again---same thing and time? now add 2 or 3 qts and see if it takes longer time---------If you want to be exact and truly scientific use 4 extra qts (1 in filter) and the time should double-----Quite possible the Canfield heads don't have the drainback holes drilled or they are in wrong place------------also look for casting flash/junk in the drains in the valley--------