OutToWinPAHC

iTrader: (10)

Hey,
I recently picked up a LQ9 as a spare. The engine has 31K on her, rusty block but I'm going to wire wheel the outside, and use a dremel on the external grooves. I am not sure what is best to clean these pistons, Deck and to wipe out the cylinders with. I have read the pistons have a coating on them so I don't want to use the wrong stuff while trying to get the carbon build up off.

So please chime in, if you know whats best.

soundengineer

iTrader: (16)

if it has rust already forming, only thing you can really do is to empty the guts, and start over.. its just a rusted block at that point. take it to a shop with a hot tank and let them clean it up. have them hone and re-crosshatch the cylinders as well.. then go home and give it a light coating of oil and wrap it in shrink wrap until you are ready to build it...dont leave it exposed to the air for any real length of time... a few days at a time to work on it as you get parts, but otherwise leave it covered up.

OutToWinPAHC

iTrader: (10)

No only the outside is rusty (iron)... inside is mint, I just want to get the carbon off the pistons without taking the coating off. I'm thinking a plastic putty knife, and seafoam on a rag. But I just want to make sure its okay to use.

No rust on the deck, pistons or internals, only outside but a wire wheel, marine clean, and por 15 will fix that

RedHotG8

iTrader: (1)

You can use Seafoam to remove the carbon, it won't hurt the pistons or any other engine parts.

Hanzy98LS1

iTrader: (6)

I use mineral spirits,denatured alcohol and acetone to clean all my parts cleans easy and safe for most evrything.

RedHotG8

iTrader: (1)

Do you use all of them or whatever one you have handy?

Hanzy98LS1

iTrader: (6)

Which ever one you can handle breathin but ya i use all three got jug of each. The mineral spirit or acetone for the thick and denatured for final wipe down. But thats me neet freak.