Cylinder rust... help please!

[kraiye]

So pulled the head off my B16 after it's been siting for a couple months and found this orangy, brown crusty shit around the top of the sleeve :(

Please help what would be the next course of action. Can it be resolved without removing the pistons or whole engine?

https://fbcdn-sphotos-h-a.akamaihd.net/hphotos-ak-prn1/q80/s720x720/1011848_10151493141696817_1132136393_n.jpg

https://fbcdn-sphotos-b-a.akamaihd.net/hphotos-ak-frc3/1016942_10151493141691817_176380674_n.jpg

[xclusive_eg8]

looks like just simple surface rust bro... try a little 400-1000 grit sand paper and buff it away.. might need to neutralize the rust before though

[chez00]

scotch brite may get it - much safer than sandpaper. Your main concern is whether the top compression ring passes the rust band.

[kraiye]

Thanks guys, was hoping you'd say something like that ;)


... Your main concern is whether the top compression ring passes the rust band.
Cyl 1,2&3 look ok - Looks like you can see where the ring stops, but cyl 4 (the close up photo) is my main concern.

will have a crack at it later today with inox + scotchbright then fine sandpaper if i have no luck. also, i'll mask off below the rust line so I don't get crud down into the rings.

[Super-DA9]

Did this engine have a blown head gasket?

Be very careful when taking the corrosion off, especially cylinder 4 if you think the top ring passes the rust. Maybe put a little bit of oil down that side of the piston and hand crank the engine, you will see where the top ring stops because it will leave a line of oil there.

Good luck and proceed with caution.

[cbauto]

Use green dishwashing rough sponge. Soaked in motor oil
Regards
Cbauto

[cbauto]

Would not recommend sandpaper

[cbauto]

Don't worry about ring or top or compression etc.

Looks fine

Srs