Best way to clean alu coolant outlet

[PositronicRay]

The pipe goes from the head to the water pump. It's not too bad, just a little corroded and some coolant residue on it.

Is emery cloth the best thing?

[PositronicRay]

Re the aluminum housing, I've a Dremel with a flap wheel would this do or too harsh?

[PositronicRay]

phillpot said:

PositronicRay said:

Is emery cloth the best thing?

try something a bit less aggressive, maybe a kitchen scourer pad?

Okay good idea, what sort of cleaner, would bathroom stuff like calgon be suitable.

[PositronicRay]

jas xjr said:

pop it into the dishwasher first . then anything left over can be dealth with

A bit awkward that, it goes into the head. I'll try the brillo pad thing.

[PositronicRay]

All clean now.

It didn't need to shiny, just serviceable.
I chipped and scraped off the hard muck (calcified coolant?) then a kitchen scourer with some bathroom cleaner. A thin strip of old emery paper helped remove stubborn stuff from around the back where it was hard to get too.