Hey guys, I'm fixing to change the oil thermostats in a set of 525SC's and wanted to know the best way to do this? It looks like I could just un-bolt the oil adapter housing and I should have enough slack to get to the snap ring. Also does anyone have the oil adapter and oil cooler hose connection diagram, I have this diagram but it don't show the connection.

Thanks!!

525 SC ?? are these custom built...or do you mean 575 SC

525SC's were the Merc 454's with a 177 blower I believe..

I see....never seen one

F-2, They're Mercury Racing 525SC which is a 454 with a Wieland 177 blower making 5-6 psi boost.

if your just changing the thermo, just do as you say to get to the snap ring..........whats the reason for this,

Its been running higher then normal oil temps, I say the oil T-stats are probably original and I think there stuck or partially stuck and not recirculating the cooled oil from the cooler into the system.