Rusty engine

[Andyman]

Whats the best way to remove rust from inside a engine which has been stood a while?

The piston bores are fine but the oil and cooling ways are rusty.


Would patio / cement acid cleaner be up to the job? or is their anything better to use?


Thanks

 

[mantis946]

White Vinegar apparently removes rust but you would need a lot to dip the engine

 

[Jonny1*2]

I'd either try electrolysis or as mentioned Vinegar, but that's going to be a lot of 45p vinegar to cover a block. Electrolysis is easier. You just need a big bin, battery charger, soda crystals, water and a small piece of steal. Failing that, if you're planning on using the block, if you're getting it honed, just have them dip it for you.

 

[Laine_16v]

Just bang the engine into the car (when your planning to use it), change the oil after 100 miles. Change the coolant after 100 miles.

Drive as normal forever after

 

[Andyman]

^^Pretty much what the fella who will be doing the honing said. Jet Wash it and spray with WD40, the rest will naturally clean off with use.