Oil Pump Replacement Instructions

Fill the rotor cavity with oil prior to putting cover on or dump down hole where pickup connects then spin pump to prime. HEre are the instructions on how to replace the oil pump in your car. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Hello,

Here is a look at the pump and it seems like the oil pressure valve is located inside the cover. (Diagram below)

Im not seeing any external plug.

Please let us know what you find.

Cheers, Ken

I have access to "mitchell i"

i screen shot the procedure.I also moved their logo into the shot as it came from "mitchell i"

there were 2 diagrams. One shows the spring in 1st. The other shows it last?

So. I reckon you need to be careful during removal to install it back, just as it came out.I scanned over some of the material.I have no clue why they show the spring in different positions

they are showing drilling a hole in the cap and using a screw (pointed, like a wood screw) and pliers.I probably would have used my "slide hammer" like I do removing small freeze plugs

fig 181 is the 1st pic

fig 182 is the 2nd

screenshot is 3rd

Check out the diagrams (Below). Please let us know what happens.

This is a good one. You've already changed everything I would have recommended. How log has this been going on? (Sounds like a song), but I'm serious. Has the engine ever been grossly overheated? Have you screwed a regular pressure gauge in place of the sending unit and checked pressure? Please advise.

OK, you've already checked everything I would suggest. Instincts tell me you have a crack in an oil passage somewhere, probably in the valve lifter galley somewhere. Finding it will tough and messy. If I'm correct, basically, the block is shot. I can't think of anything else it could be. The only other option, which I'm sure you've already done, is go to a "high volume" oil pump, but even that may only help a little.

Yes, the oil will thin out as it warms, BUT, a crack may open up a little also. Also, if there is a crack in the lifter area, you won't lose any oil, it will just drop back into the pan. And, there's no water jacket there so you won't have a "water in oil" problem. PLEASE, keep in mind, I'm not saying this is definatly your problem. It's just a viable option. With all you've done so far, I can't think of anything else. You're surely welcome to get another opinion. I have to admit, I've only seen this once before and that was in a Buick 231 V6 that was overheated so bad, it melted the valve seals.