YD25 Intercooler leak & smoke

[Ben JK]

Hey

Our 2009 D22 YD25 blows black smoke on take off/acceloration

Blocked off EGR valve and catch can

There is signs of intercool leaking (blowby stains at seams)

Does replacing intercooler help?

Cheers
Ben

 

[Old.Tony]

If there's a boost leak in the intercooler itself, replacing it works, but I'm pretty sure some guys have had theirs sealed, I just can't remember how that was done - soldering or otherwise. It doesn't have to hold a huge pressure, I think they develop about 15psi at max boost.