Using Berryman 2611 on Individual Throttle Bodies

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Using Berryman 2611 on Individual Throttle Bodies

Using Berryman 2611 on Individual Throttle Bodies

Solutions Central › Category: Cleaning / Degreasing > Specialty Cleaners › Using Berryman 2611 on Individual Throttle Bodies
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msiert asked 4 days ago
Modified Alfa Romeo Nord 4 cylinder engine: I have individual throttle bodies for my intake and on each throttle body there is a nipple for a vacuum line that is on the engine side of the throttle blade. The vacuum lines that are plugged into each throttle body goes to a vacuum hub that has a line that runs to the map sensor in the cars ecu. The # 4 cylinder intake valve has a 10 - 15% loss that can be heard hissing in leak down tests. Checking with a bore scope from the cylinder side there is nothing wrong with the valve, no holes. My guess is there is some carbon keeping the valve from fully closing? My Question: I would like to hook into the # 4 throttle body nipple (engine side of the throttle blade) and use the full can on that cylinder. Do you see any problems with this plan?
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chemtooler Staff answered 1 day ago

If you’re feeding ALL the cleaner to a single cylinder, you run the risk of overloading it and hydrolocking the engine.  This is less of a concern with larger engines, especially those with turbochargers.  However, you may have trouble keeping the car running when feeding the whole can to just one cylinder in a naturally-aspirated for 4-cylinder engine.
 

If you’re still interested in doing the cleaning, you might need someone to work the accelerator to keep the RPMs above idle, probably well above idle.  Then SLOWLY depress the actuator.  If the engine doesn’t seem to bog down, you can lock the actuator in place and decide if you try backing off the gas.  I’d expect you to need to be in the 1,200-1,500 RPM range at a minimum, but the sound of engine will tell you if the RPMs start getting too low.

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