oil cooler and pressure relief

[9073]

Hi

I have removed the engine on my truck due to low oil pressure. I am doing the obvious things first (rod and main bearings oil pump ETC) and now i am wondering about the oil pressure relief.

From what i know the spring gets weak and opens the ball type valve too early caousing a loss of oil pressure.

How would i go about rebuilding it?
Are there special tools involved?
Where would i get the parts?
What parts would i need?

Thanks

P.S. The truck is a 1990 F-250 7.3 and i figures 3 lbs. of oil pressure was on the low side.

 

[icanfixall]

Sorry but no parts are available. You need to buy the whole rear oil cooler header from ford for about $160.00. Take it apart and have a look see. You will find a spring, plug and cylinder but no ball. The powerstrokes have a kit available and a snap ring retainer to ease r&r but as you see we don't. Kinda a crappy idea from ford but gee. These motors run forever.... Most of the time...