HG;s
OK, so I pulled the engine on Sunday and it's sitting on a stand and I've started tearing it down. The only hitch during that process was shearing off 2 of 3 bolts on the passenger side motor mount. Anybody have a good source for one of those if I can't drill/easy out the old studs?
I started tearing the engine down this morning. So far so good, but I have a few issues I have questions about.
1. I soaked just about every bolt on the engine down in PB blaster the night before, but still managed to break a few things. One of the glow plugs turned about one full turn then snapped off, leaving most of the threads in the head. The actual 'glow' plug pulled out, leaving the threads stuck.
Tore my LLY down at 90k broke no bolts or Glow plugs that would suck. I'd say an easy out for that glow plug since you have a hole in it for one already. Probly gonna have to drill and easy out the motor mount bolts too, unless someone else has an easier way.
2. Do i have to pull the turbo off to get the 'Y' between intake manifolds off? It was hell getting that bottom passenger inside nut off the stud. Not sure how I would get it back on for re-assembly. see next item... No, you dont have to pull the turbo off, Just do some bending on the coolant return line, but if the motor is out it wouldn't take much to pull it off, just be sure to clean the surfaces for the oil feed and drain lines and get new gaskets if you do. I used grease to hold the little nut in my socket and a long 1/4" drive extension during re-assembly, some use tape and other things,,
3. Can you even get the 'Y' and intake manifolds off being that they are studded? Or do they not come off until you unbolt the heads?
Pull the y-bridge first and then the intake runners next, they have high temp grey sealant that holds them on so be careful prying them off so you don't scar the face of them or bend them.
4. On both left and right sets of injectors, I broke 2 of the little plastic fuel return line 'T's, leaving parts of them stuck in the injectors. WTF do I do about this? Can I disassemble the injectors to pry the pieces out? The buggers were stuck good. Not sure what to do here. Dont disassemble the injectors, turn them upside down so the plastic falls out and carefully pry it out or break it out, watch not to booger up the injector.
5. What good is the EGR? Should I sh*t can it? Seems like a lot of nonsense leaking crap all over the engine block and fouling sh*t up. What would the consequences be of blocking it all off? And what is involved with that?
I would delete it altogether, few nice kits out there, You can block it, its cheaper, but its still there.
6. What's the longevity of the Injector Fuel Pump? Since I'm here, should I replace it? Truck has ~108K miles. Seems like a real PITA to get to later on if it went out. I already have a new water pump I'll be installing when I re-assemble.
The cp3 injection pump( duramaxs don't come with a fuel pump in the tank from the factory, the cp3 pulls and feeds fuel at the same time, putting an extra load on it) A lift pump, and good filtration and additives guarantees the most life out of one along with the injectors.