Mazda 2008 MazdaSpeed3 Wartungshandbuch PDF herunterladen (Seite 28)

IV Carburetor & Choke Cleaner – After soaking and scrubbing, the siphoned liquid from the port was obviously satur-

ated with carbon material, but the overall effect it had on the valve surfaces was minimal compared with the alcohol

and Sea Foam. The cleaning ability is similar to brake & parts cleaner.

While none of the tested solvents were “miracle” workers, by any means, they were eventually capable of removing

most of the build up from the intake valves with physical agitation. We are open to suggestions from the community on other

solvents that may clean the carbon on the DISI intake valves better.

All the valve ports received at least 15-20 minutes of vigorous picking, scraping, and scrubbing with a combination of

all the solvents. Please be sure to not scratch the valve shaft surfaces too far above the valve head, as this is where the

valves glide inside the valve seals and a scratched valve shaft surface may cause premature wear of the valve seal. This

caution also goes for the bottom of the valve head where the precise machining to match the valve seat takes place.

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Mazda 2008 MazdaSpeed3 Wartungshandbuch Seite 28