Hey all !
I decided on the 6637 Mod on my 2000 F250 XLT 4x4 w/ the 7.3 and upon beginning the project, I decided to remove the intercooler piping so I can also do the foil delete and polish or paint them. Upon removal of the piping (which was a LOT easier than I thought!) I noticed that there is a coating of oil inside ?
I think this is normal, since reading up on the CCV Mod (which I believe I am going to do also, since I have everything taken apart). How much oil in the piping is normal ?
I can just imagine what the inside of the intercooler looks like... What's the best way to clean that crap out of there ?
What are the ramifications onf NOT cleaning out the intercooler ? Does it hurt performance ? Mileage ? Will that oil find its way out of the intercooler on its own after I do the CCV Mod ?

Lastly, the passenger side intercooler piping is showing wear...must have been rubbing against one of those corrugated wire-looms. Its not worn through, but I can see it wouldn't be long before it eventually did wear though. Its a good thing I took these things off to clean them up ! Last thing I want is for the piping to wear through when towing my 5th wheel...I have about 115K miles on the truck.
Any suggestions on what to use to reduce the friction to the piping ?

Sorry this was so long-winded...and I appreciate any and all of your input...

Thanks !

Scott

 

Scott, the oil inside your pipes is normal. On your gas job vehicles you'll notice the PCV filters are oily. On your diesel, the vapours from your engine are drawn directly into your turbo and recycling, leaving the nice oil film. I just did the CCV mod on my truck and I just cleaned the pipes and hoses but left the intercooler. If you search the site, I am sure there is some info if you would like to clean it.

As for you wear on your pipe. If it's questionable, replace it. If you're handy brazing, you could attempt it but I wouldn't recommend it. Could cause more issues.

 

I just did the CCV mod and Ran up I-5 from So Cal to Central Cal and it pulled the hill much better after about 1000 miles since doing the mod maybe its a psych thing but it feels snappier. I am sure the oil in the system has some effect but I am unsure if you can tangibly measure it.