Rusty Bores

Hey, I had my 324 Rocket all machined up, and I painted her real purty. But before I could assemble her, work and family comitments kept me outa the shed for a couple months, now the bores all have a light coating of surface rust. Should I go back for a re-hone, or is there something I can do at home?
Any suggestions would be appreciated. Any 'rust solutions I found here involved rebuilder engines, not a fresh one.

 

Not having seen it I would guess that I would hit it with some WD40 and Scotch Brite and run it.

 

I'd use penetrating oil, not WD40, but the Scotchbrite pad will do it if it's just a bit of rust. If the hone marks look dulled, it may need a touch-up honing. Fresh machined surfaces sure do rust quick!

 

Scotchbrite and (one of the few instances that I would recommend) WD-40. It has fish oil in it, just wipe clean before assembly.

 

Just curious, what's it going in ?
Cheers Dago.

 

what effect does the fish oil in wd have? i use wd on the bores instead of oil, i wipe everything with metho before putting the head o & thinners becuase i have a copper gasket wich i fit with 3bond, then i sprayed the wd in the spark plug holes.
i had simular problems with mine, i spent alot on machining and then the motor sat for a year before i put it together, i kept wiping wd in the bores but if you leave it too long it still rusts, i just wiped lightly over the rust with a scourer then put wd back on to protect it. I hope it runs in ok.

 

At this stage Dago, it's going in my garage. If I git my Shite together, there is a 54 98 coupe sitting in the panelshop. (But then I also have a 455.........)

 

That is really cool FSHTNK .I had a '54 "88" coupe, years ago. It was another one of them I never should have sold it cars. Here is a pic, if you don't mind me hi jacking your thread.
Cheers Dago.

 

Personally, I would use light machine oil and a hone on a drill. You want to keep the crosshatch pattern, which will be difficult with scotchbrite...

 

That's what I thought. I'll try the scotchbrite & wd40 trick this w/e. If the crosshatch pattern is affected, I'll have to drag it's sorry arse back to the machine shop.

 

It's easy to get carried away with a hone sometimes. I would stick with the scotchbrite and a lubricant. WD or a penetrating oil will work fine. Like others have stated, just ensure that you clean the bore before you drop in the piston. Acetone works well, or brakleen.