And the end result: you hurt your Carillos feelings!

Yeah... and my wallet too!....... The best part is I discovered that the (as he describes himself) undisputed authority on offshore boats is a complete fraud........

There are alot of those in this industry.You wonder how they made it so far. It is the "Travel agent that has never been anywhere" syndrome.

I'm with Reed, in the pan.
My Gen V Merc Mag 454 has a NPT bung on the port side of the oil pan.

Absolutely!... measure that oil temp in the pan... and measure the pressure where it is the weakest... On generation 4 Blocks... that is on the front of the engine on the right side just above the water inlet. If you know you have decent pressure where it is the weakest... then you know it is better everywhere else.

Rick do you have a oil temp sender in that spot on the port side of the pan.I thought it might be a little to high there?

In the boss right above the block oil filter location. The pan will be higher temps then this location. This is the temp as the oil enters the motor.

fastlane40
Yes I have the sender installed on the port side bung on the oil pan. I assume that is where the oil is the hottest (except for around the valve springs and piston bottoms).

I do have an oil temp issue with my new HP500 clone, so I am running Mobile 1 untill I can install a larger oil cooler this winter. Temp rises quickly at WOT, but seems to level off around 280

280 isn't too bad... once you crest 300 your oil will break down. The best is around 200 to 220... The oil should get up close to or slightly over the boiling point of water... that way moisture will boil off of the oil and it won't get contaminated as quickly. Whatever you do... DO NOT over cool the oil... oil lubricates best when it is around 200 degrees.

Where then should I install the oil pressure unit on a GEN 6 block? Same as the GEN 4?

Keeping the questions along the same line, should I pull and plug the oil bypass (both cooler and filter in the filter pad) or install the higher lb pressure bypass units? Am I to believe that the Merlin block has no bypass units in their block? Oil continuously flows thru the filter and cooler.