Had my 88 Formula 311 out today and have an oil leak... on the cooler that is mounted behind the intake on the inlet side there is a valve??? it has 4 ports on it, one of which goes straight in the cooler and the other 3 are connected to oil lines. Upon removal of it it looks like some kind of pressure releif valve?? Where can i find a new one???? there is no part # on it... and to be honest i have no clue of what the hell it even is..

send me a pic it kinda sounds like its a gate valve mine has one it is used to control the amout of water that goes thru my cooler to control oil temprature

thermostat ...

Sorta like one of these?