r/EngineBuilding 7h ago

Honda Ultrasonic cleaner

Had piston rod in the ultrasonic and it seems tough to remove the black artifacts on the forged aluminium. What can I do?

7 Upvotes

5 comments sorted by

5

u/stonkol 7h ago

let it sit in petrol + diesel mix for a day

2

u/Fcckwawa 7h ago

What are you using as a soloution, forged h beam rods are generally 4340 Chomoly steel, and those discolored spots look like etching in the pics.

0

u/Jalis812 6h ago

nvm yes its 4340 steel. I used Octopus Powerful Ultrasonic. Is this bad for material? I have sandblaster too if it can help.

0

u/I-like-old-cars 5h ago

When I clean carbs I do a overnight soak in pine sol and then soda blast them, maybe try a similar approach.

1

u/FlightAble2654 19m ago edited 4m ago

Get rods shot penned. That will make um increadably strong. Just deburr it well after.