Clean cylinder head inlets in situ? - Printable Version +- STD (https://www.superturbodiesel.com/std) +-- Forum: Tuning (https://www.superturbodiesel.com/std/forumdisplay.php?fid=6) +--- Forum: Engine (https://www.superturbodiesel.com/std/forumdisplay.php?fid=7) +--- Thread: Clean cylinder head inlets in situ? (/showthread.php?tid=6302)

Clean cylinder head inlets in situ? - corrieb - 03-02-2015 I removed the old worn T3 turbo on my '83 300TD this weekend to replace it with a fresher KKK turbo. I also decided to replace the leaking turbo oil drain seal... which was completely hardened and wasted almost 5 hours of my time... ugh. Anyway, on taking off the inlet manifold, I notice that the valve stems and inlet ports of the cylinder head are simply caked in oily soot. Couple questions on this: 1) Should I even care about the soot? I suspect an oil leak from the turbo and the EGR have caused the buildup. 2) If I should care about it, can I have a go at removing it in situ? What would be the safest technique? Cheers, Ben RE: Clean cylinder head inlets in situ? - raysorenson - 03-02-2015 This is done by walnut shell blasting. A plate is bolted over the port face, the valves are closed and you blast away. Or don't worry about it. I had a combustion issue from using AFT for fuel and keeping the egr functional. This sort of snowballed into a situation with seriously caked up ports and valves. The backs of my valves looked like little black Christmas trees. I fixed my combustion problem, disabled EGR and started burning diesel fuel again. The next time I had cause to pull my intake, the goo was gone. My ports and valves looked normal. RE: Clean cylinder head inlets in situ? - corrieb - 03-02-2015 K thanks. I'm allergic to walnuts, so I won't be blasting them any time soon Maybe the head just gets hot enough to eventually burn that stuff off. If so, the new turbo + disabling the EGR should avoid any new build-up. Do people have much experience with the products you pour into the intake? Eg. http://www.jlmlubricants.com/en/products/diesel/diesel-air-intake-egr-cleaner RE: Clean cylinder head inlets in situ? - sassparilla_kid - 03-02-2015 If you feel like spending the money on a water/alcohol injection setup you could always do that, it should help clean things up while you're driving, and there's a performance gain with it too I used this stuff, although I think I might modify it with an extra valve and add a nozzle so I can have different stages: http://www.alcohol-injection.com/en/pumps/281-300-psi-recirculation-pump.html http://www.alcohol-injection.com/en/push-to-connect/64-check-valve.html http://www.alcohol-injection.com/en/push-to-connect/379-nozzle-holder.html http://www.alcohol-injection.com/en/nozzles/186-outside-mount-nozzles-do3.html RE: Clean cylinder head inlets in situ? - EDH_Performance - 03-03-2015 You can use a vacum cleaner, and fit a long tube (10-15mm) in the end...Then you can have the valve closed and scrape/suck the buildup with the tube Works like a charm!