We got the 351w block for our bronco back from the machinist’s and I put it in the garage on a stand right away. It sat there for a few weeks and I just got a chance to clean it up since it was hot tanked.
I spent a lot of time and bottle brushes and soap cleaning it up. I then spent a lot of time with the pressure washer on it.
i immediately used compressed air to dry it off and, as expected, it still flash rusted. I used wd40 to wipe down the lifter and piston bores and I used acetone to wipe down the to-be-painted areas and painted them.
I had to leave before I could wipe down the rest of the block but wanted opinions on what to do next?
i feel like running a dingleberry through the lifter and piston bores but this is all a little new to me.
what’s the prescription?
Here are pics. There is residue from the masking tape that will be removed
I would also use a "Scotch Britte" pad with some WD40 on it and use that to clean it.
I've used WD but used motor oil will stick better. Thin it and spray w/ siphon gun.
Don't forget the oil galleys and other passages that feed the lifters and crank. You don't want rust there.
It may be better to apply the WD-40 before drying it off - after all, WD stands for water displacement. After that I'd wipe it down with an oily rag.
Then put it in a heavy duty trash bag and seal it up until you get the engine completely built.
In reply to clshore :
On the outside yes, As for the lifter galley... you missed your opportunity to coat it with "Gliptal" that should be done right after the hot tank as WD and oil is now in the pores of the metal again.
As for the bore of the lifter and cylinders ATF or Marvel on a rag keep wiping until the rab is no longer changing color.
Glyptal. It's a paint originally intended for electrical motor armatures, some people use it to paint the lifter gallery to smooth out the casting and promote better oil drainback to the sump. I'm not sure if it's done much anymore, and for a regular rebuild for normal use it probably isn't all that necessary. You can buy it from Eastwood Company among other sources.
