best tb cleaner - alapppy
Hi


My mazda mx5 is idling a bit rough. I had a look at the air intake around the butterfy and it is filthy ! What is the best way and or product to use to clean this area without damaging the butterfly or cat.

thanks
alan
best tb cleaner - Andrew Moorey (Tune-Up)
If you can find it Mega-Power throttle body and carb cleaner is by far the best around but is only available to trade. Failing that Wynns or STP do a good one. Use it sparingly, wear eye protection and use an old toothbrush to shift the dirt. On MX-5s I usually remove the throttle body (4 bolts and a few hoses) to clean the back of the butterfly and the idle speed control valve. You will probably have to reset the idle speed afterwards as it will increase.
Andrew



Simplicate and add lightness!
best tb cleaner - Cyd
I wrote a "weekend workshop" article about this for Rover Torque (the Rover OCs mag) because the Rover turbo engines suffer from this problem too. Like Andrew I remove the tb from the car and use an old toothbrush with carb cleaner. The first time I did it (the tb was very grim) i also polished up the edges of the butterfly very lightly with duraglit. I clean the tb on the car with brush & cleaner every time I change the oil now and remove it for a thorough clean at each 24k service. Makes a huge difference to running and economy.

 

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