It's been a while since my last post, here we go.
Took my 2001 Jetta TDI over to a fellow Veggie Jetta TDI driver to have the intake manifold and exhaust gas recirculation control valve cleaned after another 100,000km. I did this before, so here are some of today's photos.
A (clean) TDI Manifold:
What came out of mine using scrapers and steel brushes:
Upclose, the stuff is so black, the previous photo couldn't Auto White Balance to pick up the detail:
Even after that mess and some time in the solvent station, we could feel with our nitrile covered fingers there was some build up left. So we took a propane torch and some compressed air and ...
Yup, that did it.
Performance of the car is now a lot better, and I'm sure better efficiency. I'll update the fuel effciancy graphs in the top-left of this blog after our next refill (2-3 weeks from now).