1HD-FT full of EGR gunk

[cmjtaco]

Hi all.

It's worse than I thought. My intake runners and cylinder head are completely full of oily EGR soot.

The truck ran fine (but felt sluggish off boost) before I started peeling back all the layers of this dirty onion.

Looking into my options right now. Things are complicated by the fact that I may have to move back to the US within a couple months. I don't want to half ass the repair, but if the truck is not running, I can't ship it.

Anyone deal with an EGR gunked up FT or FTE? Were you able to get by with walnut blasting? Or just pull the head?

 

[mudgudgeon]

Button it up and deal with it when you're back in US if you're worried about the time frames.
You said it's been running just fine. Leave it as is a little longer.
I recently had to cram a bunch of mechanical repairs in before an international move so i could ship my cruiser. It adds a lot of pressure to an already tedious process.

That amount of gunk, i think it would be worth the effort to remove the head.
Check valves and replace valve stem seals while the head is off

 

[TheBussman]

Seems like these motors get the EGR gunk worse them most. The intake tract in the head is so long the only way you can get it 100% clean is to pull the head but you can get about half of it out with wire tube brushes and solvent. Not a fun job. For the intake manifold and crossover pipe I like to burn it all out and then follow up with ultrasonic. A low dose of water meth injection will keep everything clean going forward.

 

[cmjtaco]

Thanks for the advice guys. Bought a walnut blaster for the head and dropping the removed parts off at a shop for cleaning.

Might try to scrub the ports manually though as the blaster will take a few weeks

 

[Dougal]

I had a nissan like that. I ended up soaking the manifold then scraping it out. For the head ports I scraped it out.

Really tacky horrible stuff. I'm sure something dissolves it but you don't want to dissolve it in the head.