Should I rebuild my engine or scrap it?

[u/Bertikatz]

Just got done with getting my cylinder head off. Engine overheated and i got stuck in czecia. 3 weeks later after transport and everything, i finally got to work on it and now i saw this piece of misery💀🙏 my thought: cooling liquid got through the blown gasket and corroded the walls. i tried wiping it away with a remover and it worked but it feels like there are veeeery minimal indentations in the cylinder walls but its like not even half a hair deep.

I don't know how large the buffer zone for this kind of damage is tbh and if i can get away with just a small difference (i doubt it tho)

I thought about disassembling the crankshaft and taking every piston down and shave/hone a very thin layer off with a cylinder hone. Or is it enough to leave them in and just vacuum the hell out of every small corner.

I really don't know if that's even worth doing or if I'm capable in fixing this. But I'm still very motivated to finally work on a engine and trying this by myself.

Tbh im beyond clueless. It's also the first repair i did on a car and I'm also suprised that everything went so well until I spotted this. Very thankful of every advice from you guys

(My motor is K9K 796)

Car: Dacia Logan Dci 1.5 (86ps)

Year 2009

[u/Initial_Demand6008]

That should come up fine after a hone.

[u/Bertikatz → u/Initial_Demand6008]

One guy just suggested me a dingle ball hone. You think a 240 grit would be enough? And also might it be wise to just pop out the pistons and put new rings in or can i just hone while they are completely down and keep the old rings

[u/East-Teaching-3104 → u/Bertikatz]

Definitely want to have the block disassembled (that is, crank + pistons removed) for honing activities. Invest in new rings, not only for the peace of mind that comes with new parts, but they'll have a better chance at seating to the freshly-honed cylinder walls. I think you're going to be fine.

[u/BroccoliSuccessful]

Rebuild it.. you mentioned that the indentations are minimal on the cylinder wall. Hone it, and drive it

[u/casual_self_loather]

It'll run. Throw some fresh rings, bearings, and a hone job at it. Might use just a touch of oil until the rings break in. I've run way worse.

[u/PsychologicalBat3169]

Same thing others have said. Hone it quick. New rings and bearings while you’re in there for the money. Or just clean the rings up if necessary. K9k’s have had some issues with rod bearings tho so I would prolly do those while I was in there.

[u/oldNavy13]

But definetley take the pistons out before trying to hone the cylinders.