[DR435rider]

My 7.3 has 350,000 miles. Doing some deep maintenance, I pulled the injectors and one of the injector cups stuck and came out with the injector. Coolant flooded the cylinder and engine internals. Not good. My plan is to remove the engine and see what repairs are needed. My plan is to keep this truck for the long haul. People can't believe it has this many miles and I want to keep it on the road.

While the engine is out, what other maintenance do y'all suggest?

I already have new IPR, ICP and CPS. Plus new HPOP lines to the heads and replacing fuel lines to go to a regulated return. I already bought a new upgraded GPR, EBPV delete pedestal and Wicked Wheel.

By the way, the stock turbo looks great... no erosion due to dirty air. Already have up-pipes and turbo back 4" exhaust.

What upgrades are suggested for the HPOP regarding seals and fittings?

What other than:
Check engine ground cables
Check all electrical connections and cables
Paint engine
Replace rear main seal
Differential oil & breather hose
???

 

[RT]

I sure wouldn't pull the motor for that. Suction that cylinder and spray it down with WD-40. I'd probably do all the cups on that bank, but that's all I would do. Change your oil as well.

 

[Greg03PSD]

x2 on what RT said. I would not pull the engine for that. Suck all the fluid out of the cylinder, install some new cups, put it all together, put in fresh oil, flush the cooling system, and keep driving it. That's exactly what is done whenever the injector cups crack and start leaking fuel into the cooling system.


Since you caught it immediately and have not run the engine for any amount of time, there is no damage done. Unless there is some other reason to pull the engine such as to fix oil leaks, replace a rusted oil pan, etc., I'd leave it alone.

 

[Maryland dieselnick]

Yeah, don't pull it. I would do all 8 cups. Drain the oil, and pull the cooling block plugs.
We can help you with all of this.
If you read this but don't check back, make sure you clear the cylinders of fluid after installing injectors but before installing the glow plugs, by turning crank with socket and ratchet. Just lay covers on with one bolt to keep oil from shooting all over the engine compartment.

 

[DR435rider]

Well... that's encouraging. I've already borrowed a video inspection camera that should fit down the injector hole. Already planned on replacing all the cups. I'll let y'all know what I find.

Thanks!