How to clean a TDI intake manifold.

[d00df00d]

This is the first time a maintenance procedure has made me wish I had the car it was meant for.

Seriously, a small part of me now wants a VW TDI with a crudded up intake manifold just so I could do this to it.

 

[bvance554]

Haha! Wow that is pretty awesome. Just look at all of those lost mpg's.

 

[spackard]

I've done a similar thing with 2-stroke mufflers, but I wouldn't have the nerve to do it on an aluminum intake manifold.

 

[splinter]

Woohoo! Not sure if that technique is OSHA and EPA approved though.

 

[bullwinkle]

Stupid EGR, bet the one off the 300D in my sig would be worse than that!

 

[supton]

IIRC I read that one mechanic liked to take the intakes to his local car wash and use the power wash to hose 'em out. No idea if he soaked first in diesel oil or what; but I think the car wash clamped down on that finally.

This is one of the reasons why I didn't mind blocking off the EGR in mine, although oddly enough after >200k the EGR valve wasn't plugged up, so I suspect I missed out on the crudding-up. Quality motor oil, ULSD and lots of hard driving seem to have avoided this issue.

 

[BMWTurboDzl]

APPROVED!!

 

[racin4ds]

Looks like fun but I'd have to go with a strong solvent soak myself, would clean much better overall and be safer on that thin cast aluminum!

Its reasons like that, EGR and other horrible designed emission control equip should be removed!!!

 

[Smokescreen]

In this case we see a clear representation of how emissions and fuel quality work in conjunction with this specific engine design to the detriment of the longevity and efficiency of the machine over time.

 

[supton]

To be fair, they tended to clog at high miles, and once ULSD came along the incident rate seemed to drop very fast.