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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...

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.

Before I took the pump off of the engine that I'm trying to run on an engine stand, I took the top off of the pump to make sure that the shut off solenoid and related mechanisms were working properly. With probably 5 lbs of lift pump pressure it would fill the pump but when I turned the engine...

I just remembered back in 2019 I sold ak diesel driver a GM new DS4 with like 500 miles on it that had sat on my shop shelf here in Florida and he had a problem getting it to run right and he told me he ran Bio diesel through it and it cleaned it out and ran fine as far as I know. I don't have...

I have a few IP gears laying around, I think I will weld something that will go to a drill and try the ATF trick. We'll see how it works.

I didn't know if running transmission fluid through it might work. With like 10 PSI inlet pressure and some way to turn the pump drive at a couple hundred rpm's.

I have a DB2 pump that is on a motor that has been sitting for some time, the engine was pulled several years ago and ran fine but now I can't get any fuel out of the injector line ports. I removed the top and the shut off solenoid and linkage is working properly and it's getting fuel.

Like the title says I'm looking for a 6.2 oil pan for 1988-1990 GMT 400 4 wheel drive truck for a 2 piece rear main seal block. Preferably with the oil pump pickup assembly. Let me know if anyone has one. Thx

Hey Ferm, I PMed you about coming to pick up that long block, give me a call.

Ferm, I'll come get that block if you can wait about three weeks, my wife is having some major surgery this coming Friday and I need to be around to take care of her for at least a least a week after and I don't think I can get there before this Friday with everything going on. Your about 2:45...

Ok everyone, I have several GM diesel engines that I have acquired and I would like to build one of them using some of the leftover parts that I have. So the parts that I have that are worth anything are as follows... Harland Sharp 1.6:1 Roller Rockers, new P400 rockers & shafts, Heath Towing...

As you know Chris when I first installed this pump I had to advance it as far as it would physically go to the advanced position just to get it to run pretty much at all. Then I put my spare newly remaned .310 pump on it and it ran good but did the same thing as far as spitting unburnt sooty...

No it's raw fuel coming out between the head and the exhaust manifold. But it runs great, I'm not saying 400 hp great but it runs pretty dang good. Just like when it was coming out of the # 2 cylinder which was the reason the motor had to be pulled to get the heads redone. But back then only the...

Well guys, I've been trying shake down and break in the the P400 in the Burb and here's where I'm at. I have a total of 55 miles on it and basically when I drive it I let it warm up and then try and do some wide open throttle pulls and try to watch the gauges. It's pretty hard to watch all 6 of...

Hey guys I going to look at a 1997 GM truck with a 6.5 engine. So it has a new DS4 Injection pump along with a new PMD . So it has fuel pressure from the lift pump but no fuel at the injectors when you crack the injector line while turning it over. I don't have a whole lot of experience with the...

Since we are talking about heat, so I added a DELCO by VIN # coolant temp sensor to the port at the right rear #8 pipe thread sensor hole. And I ran the wire through the OEM harness up to the OEM sensor in the front left side of the head and I installed bullet type connector so I could use...

This truck has never pulled a trailer heavy enough to need trailer brakes (two place snowmobile trailer, 21 ft go fast boat) and the engine that was replaced under warranty back in like 1997 was a 506 squirter block and it never pulled anything heavy and it had blow by and ate at least a quart...

I agree with you Chris, I added 1 pint of this... Is 1 pint enough? I've got Rotella in it right now.

Hey guys I'm about to get this thing on the road and I would like opinions on the proper break in procedure, especially how to break in the Total Seal rings. Everything has been done to keep this engine running cool so I'm not sure that I can get enough heat built up to seat the piston rings. Do...

It's on page 2 post #34 of this thread, I don't know how to post it here, sorry