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Looks good, now it's time to give that beauty a bath!

Well good news.. Started putting the 93 back together, bench tested the 60G's that came out. one did not work! so that left one bad 60g and the one broken. used a couple from the 6.2 block that were also 60G's installed them. then decided to pull the starter. Glad I did pull the starter...

Looks good too! that chrome matching the trim says it all!

I left it for the day. I still have some other things I can do on it. still need to check the voltage at the GP controller and amp draw. if all checks out I will bench test the 60g's and add one more good one to the mix. I can also increase the delay timer I have wired into the GP...

Just finished doing the compression test on the 93. not looking too good here.... when cranking it, I gave it extra cranks, counted about 9 compression strokes each. 1. 380 2. 250 3. 260 4. 270 5. 330 6. 350 7. 350 8. 270 (had broken GP)

Yeah, I'm afraid #8 is fubar now. Piston rings are most likely pinched or broken along with the pre-cup in the head too

On a side note, I can use the broken GP to try and make an adapter for a leak down tester. not sure how hard the metal is to hack off the remaining tip and drill though it. then attach an air compressor male quick coupler fitting

I'm not sure I would be able to verify if that tip is still in the cylinder or not without pulling the head. I think I will just rotate the engine by hand a couple time and send it. I pulled them out due to the recent hard to start on cold mornings. I wanted to do a compression test and...

Here is a pic of the GP's I just removed from my 93. 7 of them are 60G's and one the PO did not replace is one of those other GP's Not a good situation.

Do not go for the amazon ones. guaranteed swelling and possibly destroying the engine. if you are inclined you can splice into the yellow wire from your GP controller and run it to a push button switch to a keyed positive. this will keep the ECM controlling the GP's but when you need...

Confirmed 7 are all Delco 60G's and one is a xtreme diesel DRX00050 GP (the one with the missing tip) Can't find any info online for it other than their site comparing it to a delco 11G.

All 7 have AC-DELCO stamped on them except for #8. it was stuck. all I did to remove was once the threads were clear from the head it spun easily with my fingers. I dropped the down pipe to get better access then grabbed it with a pair of plyers gently turning back n fourth and pulling...

Well folks, this 93 has been good to me over the past year I've owned it! but I think I have found the source to all my problems..... anything look wrong here.... these are laying in the order they were removed bottom of the pic would be the front of the truck.

Yes there is a TSB out there somewhere from GM that states a new design on the connector where you have to file or trim the male end to make it work.

Yeah most of us just eliminate them and run a pre-filter somewhere before the LP. I opted to add an inline one, then later when I replaced the LP (lift pump or frame pump) with a facet that has it's own 50 micron screen and bowl, eliminated the inline filter too.

Mee too. 🍿

Welcome @Cattapper first line of diagnosing is the clear line like Ak said. then we move on to checking fuel pressure at the IP inlet in front of the fuel filter. the line is a 1/4" and you can pick up a 10' roll at the hardware store. it does not have to be rated for fuel. most of us run...

Glad I could help :)

Yes please post all the deets and pics too!

the tools I found online use two gauges with a regulator. I can build something like that but it's being able to connect into the GP hole. I might try taking an old GP and seeing if I can drill through it and make some sort of adapter to connect it all up. I had wanted to use the...