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[Worf]

I have a small ultrasonic cleaner, useful for cleaning carb parts (brass and ally) and have always used water with a dash of washing up liquid. There appear to be a lot of "specialised" solutions available if you have deep pockets, to shift more stubborn dirt.

What have people found to be the most effective stuff to use? Persil

[Davy61]

Great fan of the Tickopur R33 over here. I use it at home and we use it at work as well to clean injector nozzles on the continental aircraft engines.
It could be considered one of the expensive products but only requires 3 -5 percent dosage so a 1 liter bottle shoud last you many carb rebuilds.
 
Davy,,

[JReid]

When cleaning my carb I used washing up liquid first then on a second wash used tap water, worked reall well

[Wittsend]

Depending on what it is and how dirty, Dan, diesel, alcohol or acetone ....

 

[Norm]

i use water with some concentrated road grime remover, get it in 25l drums ebay lasts along time.

[Kernowcam]

I have a small ‘toy’ ultrasonic cleaner.
Never really nailed the chemicals.
Without n I find fairly useless, i suspect with diesel etc would,be much better.

[diffwhine]

I have a 25 litre drum of water based parts washer concentrate. It is supposed to be eco-friendly... It is... It's also *&%^$ useless as a solvent for a parts washer at the recommended 10% concentrate. Slightly less than *&%^$ useless at 50%. I was going to ditch it, but wonder - might it work in an ultrasonic cleaner?