Hi ! I have hydraulic roller lifters and high volume oil pump on my engine. I use Motul 300V Copetition 15W 50 oil and oil pressure is 70 PSI (idle) to 90 PSI (full throtle). Is there a risk that hydraulic lifters will work like solid ones ?

I guess I do not under stand the question.

That is some high oil pressure, are you running TIGHT clearences?

I Think He Is Asking Since He Has High Oil Press Will It Affect Pumping Up The Lifter. My So No. I Would Also Just Use A A Single Weight Oil Like 40w.

I agree, way high pressure, have you checked them with mechanical gauge? electric senders tend to read high as they get older.

Or a 0-60 sender hooked to a 0-80 gauge will read high also.

http://www.offshoreonly.com/forums/s...light=oil+pump