oil cooler,how does the valve go in header

[Norred]

I have a 95 7.3 that has oil in the coolant so I rebuilt the oil cooler.When I was pulling the cooler out some kind of valve and spring fell out of the oil filter end cap.I am unsure if I have all the parts,all I found was a sleeve and a spring.It looked simple enough so I put it back in and rebuilt the cooler and installed it.Now it still doing the same thing with oil in the coolant and its not left over oil because I am loosing oil.The truck runs perfect and all functions are normal.Is there any one who knows how this valve operates and can there be a crack in the cooler somewhere?

[Patrick Feeley]

If there's oil in the coolant, there's still a problem with the cooler or the o-rings. I guess there could be a crack somewhere, but that has never been mentioned on any forum I've been on as a problem. As far as the valve goes, are you refering to the bypass valve (spring, waher, and disc that sometimes falls out when the filter is removed during an oil change) or the relief valve (on the block side of the oil filter header adapter)? Cheers!

[TANPOWERSMOKER]

easy to shear or roll the o-rings out of position. Did u use a ton of grease for re assmbley? maybe the cooler cavitated from the inside? is there coolent in your oil?