I cant find any trouble shooting in the helms for this so I assume its the oil pump . my b16 as it warms up starts to drop oil pressure and once it is at full operation temp it drops 2 zero at idel . Oil pump? or what else could it be ? I did search found know real answers. Thanx for any help or suggestions you may have!

 

ttt

 

anyone?

 

What kind of oil pressure gauge are you using?

 

autometer mechanical at startup its 25 or so and then works its way down to zero once warmed up

 

have you strated by the obvious stuff like changing the oil and filter?
could be your pump release pressure spring

 

even so I would need to repace pump right? are there any other tests to run ?