Thread: Surface Rust in Bores: How bad?

So I'm assembling a VE motor for my P10 after getting hooked on VVL crack (in my SE-R). The head has been off my VE bottom end and some coolant had leaked into the cylinder, and even though the water was removed, there is a slight surface rust in the bores.

How much should I worry? If I pop the cylinders and do a quick 00 steel wool "hone" or 400 grit wet/dry and oil, will that be okay? As long as the surface is smooth and the hatch marks are back?

Also, do the piston rings need attention after this occurs?

Thanks,

_SHig

I would buy a decent honing tool and lightly run through the cylinder w/ some wd40. Should clean it right up.

^ like he said

x2 definitly use a tool that is made for honing

check the rings for sure, you don't want them to be all rusty. Might as well take them out and inspect them. they are chrome-faced rings factory so they could have rusted.

grab a dingle ball hone and run it up and down the cyl. it will remove everything. no need for WD40. once you have cleaned the cyl spray it with WD40 to protect from more rust forming.

wd40 aint got nothing on PBblaster except for the shorty cans

i definitly scond this mothod of honing, best way to do this

No offense, but PB blaster is the most horrible idea for stopping rust ever. The way it works is that it catalyzes the rust (and all other metallic materials, for that matter), which causes it to deteriorate faster. This is great for stuck bolts and what not because it breaks down rust, but it will also cause the good metal that it comes into contact with to rust much, much more quickly.

You definitely want WD40 for this application, because it protections the cylinder walls from coming into contact with water, which is the most common catalyst for rust.

Ouch! Good info on WD vs PB!

Thanks,

_SHig