Does anyone know how to R&R 6.5 and 6.2 in block oil pressure relief valves?

[spdgofast]

Like the title says, I'm looking for information regarding the removal and replacement of the two oil pressure relief valves in the GM 6.5 or 6.2 engine. Not sure if a slide hammer with a screw in it is the way to go. I tried google but couldn't find anything.

 

[NVW]

I never heard of one being replaced, is there a problem with them?

 

[MrMarty51]

Be sure You can find replacements afore tearing up the old ones.
I would not even know where to look for such a critter.
Are these part of the oil filter adaptor ? Oil pump ?

 

[spdgofast]

They are three separate parts, there is two different relief valves and a "cap plug" which looks like a small freeze plug with about a 1/16" hole in it. I removed the cap plug on a Guinee pig block I have by drilling about a 1/8" inch hole in it and using a slide hammer with a screw in it, but removing the actual valves everyone is saying dig them out with a screw driver but I'm going to try the drill a hole and the slide hammer method. The one for the oil cooler circuit is recessed about 1.5" down in a hole so digging it out with a screwdriver may damage the block in my honest opinion. I have all three parts new in the GM wrappers.

 

[Will L.]

Sorry, I usually have the machinist pop them out.
real4wd.com is where I got my last ones. I am no where near my books/papers that have the part numbers. But you might check with Chris- see if he can get them too.

 

[spdgofast]

I have them, I'm just trying to find out the best way to get them out without gouging up the bores in the block where they are pressed into.

 

[MrMarty51]

I wonder if maybe a high quality seal pick might aid in getting them out ?

 

[emmott]

May I ask why you are replacing them, are you having low/high oil pressure issues?