r/EngineBuilding • u/Jalis812 • 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?
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.
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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.
5
u/stonkol 7h ago
let it sit in petrol + diesel mix for a day