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My Suburban Renewal Project

Head or block crack? I think he means the #8 cyl is toast by having to pull the engine...
 
WarWagon said:
Head or block crack? I think he means the #8 cyl is toast by having to pull the engine...
Click to expand...

Once I got the head off I found a crack in #8 cylinder. It looks like the crack in the upper picture here. Mine is not quite as bad, but in the same spot. I don't know if it could be sleeved, but since I found an AMG block that is what I'm going with.

I guess this will teach me to check stuff out before I install a used engine, but where do you draw the line? I removed the oil pan and the webs looked OK, so that is what I went with. I didn't want to end up rebuilding it so I did not remove the heads. That is the chance you take with a used engine.
 
Bobbie, that was good work getting it back in and all updated!! Sorry to hear about the #8 crack, hopefully you'll get the stuff you need and get it back on track soon. :smile5: Wish my engine bay looked as nice ad clean as yours!!
Keep us posted, good work all in all !
Don
 
Headoff.jpg


Well, here is the engine with the head off. The last thing I wanted to do was tear this apart after getting it all back in one piece.

CylCrack.jpg

And here is the cracked cylinder. Kind of hard to see in the picture, but its there. Its located at about the 10:00 position.

I'm off early tomorrow for a 14 hour (or more) round trip to collect the AMG engine - and a side trip to get a BMW motorcycle for a friend!
 
Wow. Bobbie, you've been doing a FANTASTIC write-up, with spectacular photos. Excellent. We all feel for you needing to do the engine swap AGAIN, and I applaud you terrific attitude. On the other hand, a new GEP engine? WOW. That's gotta be the cats pajamas. I'd LOVE to see you perhaps put an ATT turbo on it and turn up the fuel with a chip. Boy, that would be awesome! (Edit: Sorry, forgot you had a Mechanical IP - chip won't do anything)

All the best, keep up the great reporting!

-Rob :)
 
Last edited:
TurboTahoe said:
Wow. Bobbie, you've been doing a FANTASTIC write-up, with spectacular photos. Excellent. We all feel for you needing to do the engine swap AGAIN, and I applaud you terrific attitude. On the other hand, a new GEP engine? WOW. That's gotta be the cats pajamas. I'd LOVE to see you perhaps put an ATT turbo on it and turn up the fuel with a chip. Boy, that would be awesome! (Edit: Sorry, forgot you had a Mechanical IP - chip won't do anything) All the best, keep up the great reporting! -Rob :)
Click to expand...

Thank you very much. Probably no ATT turbo, I'm already way over my budget and I have a rebuilt GM8, so that will have to do. Right now, I'll be happy to have it running properly. That doesn't mean I can't turn up the pump a bit ones I get it sorted - its not real hard on a DB2 and with the .033 plungers it should do OK.

Just to clarify, its a used GEP engine. I bought it from a fellow Truck Stop poster. Got back last night at 11:30, it was almost 800 miles round trip. I haven't had much time yet to look at it. Its a NA engine from a Hummer H1. Looks like it had very little use. Still has some of the 24 volt stuff on it. I'll post pictures later.
 
I have the GEP engine unloaded and here are a few pictures. Everything was for 24 volt.

GEPBlockvalley.jpg

Block has the diamonds and "506" in the valley.

GEPBlockend.jpg

Has the drain hose and extra oil takeoff, 24 volt engine speed sensor

GEPVCsticker.jpg

General Engine Products sticker on the valve cover

GEPBlockfront.jpg

Hydraulic fan clutch, I think from a Hummer?

DSCF5831.jpg

I'm sure everyone that has picked up a GEP engine also had an ex Police BMW motorcycle to ride back with it, so this shot is to show I did as well.
 
Looks like a fantastic starting point. Thank you for including us in your voyage. We're all pulling for this to be a flawless build for you.

-Rob :)
 
Well the GEP engine is in and running. I haven't put a lot of miles on it yet, but hope to this week. I need to get the AC charged up and a few other small things like that. But its now moving under its own power again!

GEPEnginein04-1203.jpg

I have reworked the mount for the Mann Pro Vent since this picture.
 
I found the problem with the AC, the hose from the compressor to the condenser has a bad end and is not sealing properly. This hose includes all the hoses that go to the compressor and has 3 hoses coming off of it - one to the condenser and one each to the front & rear air. So I do some checking and NAPA list one. They have it for me Saturday morning. Go to pick it up and the guy even gives me a discount. I should have known, its going too smoothly.

Get it home and get the old hose off. To get to the rear air connector, I have to remove the coolant tank, air cleaner and the inner fender. Once its out, I notice its a little different. Hoping maybe it will fit, I find it not only hits the turbo, the compressor end hits the valve cover. Take it back and find its for a 350 and they do not have one for a 6.5!!

So now the truck is apart (again) and I'm trying to find the hose. If worse comes to worse, I can probably get this hose repaired, but I would rather find a new one. Soon I hope this will be back up and running - with a working AC!
 
bobbiemartin said:
Well the GEP engine is in and running. I haven't put a lot of miles on it yet, but hope to this week. I need to get the AC charged up and a few other small things like that. But its now moving under its own power again!

GEPEnginein04-1203.jpg

I have reworked the mount for the Mann Pro Vent since this picture.
Click to expand...

Wow. That looks gorgeous. Great job.

-Rob :)
 
I found an AC hose, but it will be late this week before I can get it. So while I'm waiting, I took a few pictures.

GEP-1.jpg

Turbo side, the outlet of the Mann ProVent connects just like the CDR valve.

GEP-2.jpg

Drivers side, the ProVent bracket is welded on the alternator bracket, which was already modified for an "Iceberg" alternator

Oilfill.jpg

Modified oil filler with vent take off. That is a mandrel bent 1" stainless U bend going to the inlet side of the ProVent

ProVent.jpg

Here is a closer shot of the ProVent. Smaller hose on the bottom drains the oil back to the oil pan.

OilPanfitting.jpg

And the fitting where the oil is returned to the oil pan. There is a check valve in the hose along the way.

OilCooler.jpg

New Oil Cooler & hard to see Earls -10 hoses. Straight fittings on cooler, 45's on the hose ends

PMLTransPan.jpg

And the PML aluminum deep transmission pan. I used Dexron VI fluid.

I have only put about 100 miles on it. Once I have the AC hose, I will be driving it more. But so far, its running very well.
 
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