Oldtimer Workshop

Labels: British

Hold On

Labels: Music and Movies

Hoochie Coochie Man

Done proud...

Labels: Music and Movies

Iggy Pop, Amen

Search & Destroy

Labels: Music and Movies

Listen to The Black Angels

Caught this live last night was the opening song, Stephanie Bailey was amazing.

Labels: Music and Movies

Ultrasonic Cleaning

If you are keen to have a part cleaned with absolutely no abrasion or surface finish (plating) loss have a think about an Ultrasonic Cleaner.

According to Wikipedia: In an ultrasonic cleaner, the object to be cleaned is placed in a chamber containing a suitable solution, the chemical added is a surfactant which breaks down the surface tension of the water base. An ultrasound generating transducer built into the chamber produces ultrasonic waves in the fluid by changing size in concert with an electrical signal oscillating at ultrasonic frequency. This creates compression waves in the liquid of the tank which ‘tear’ the liquid apart, leaving behind many millions of microscopic ‘voids’ or ‘partial vacuum bubbles’ (cavitation). These bubbles collapse with enormous energy temperatures and pressures however they are so small that they do no more than clean and remove surface dirt and contaminants.

For something like a carburettor every port, gallery and thread is spotless - probably as good as when it left the factory. This carby was at least 50 years old, the venturi was black but came out of the ultrasonic bath like new.

The solvent used can make a difference. I used a water soluble cleaner used in aviation with very good results. Ultrasonic cleaners usually have a wire basket. Placing parts directly in the bath during the clean can damage the cleaner, always put them in the basket. If the cleaner has a duty cycle stick to that too.

BEFORE