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Can anyone give me advice on this? I thought I was on the home stretch with this project and noticed this when I was getting ready to put the head back on. Am I overly worried or is this ok.
What exactly are we supposed to be looking at? The dark spot on the bottom edge of the piston? You might want to tell us or show us exactly what you are looking at or worried about.
Sorry I should've been more specific yes it's the bottom left little dark spot there it almost looks like it's a hairline split or something and the material is peeling off
Are you re-using the pistons in your build? They look like cast aluminum. I'm not a pro, but if you were running these before, I don't think the blemish will adversely affect things. It might have been some porosity that kicked out when the pistons were baked and if anything, probably better it's come off before starting it up. Now, if it looks like you could pick material easily off of it, you might want to pull the piston and do some very fine filing or "softening" of the blemish to help prevent anything from "growing".
I've had a couple of those "oh-*****" moments during my build, not been happy, but decided to live with them, yet not happy the build isn't entirely text book perfect.
That looks like an impact chip to me. Was the piston dropped or banged? Think I'd spring for a new one. As stated it will become a hot spot and looks to big to be smoothed out. JMHO.
I called summit and they are going to send me a replacement. Just sucks ive been to this step already and one of the connecting rod bolts broke so I had to restart. I guess its just good i noticed it.
Hopefully, its the picture you intend to snap and not the rod bolts, lol Sorry, had to reply back because that's what I thought at first, but surely not your intention.
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Sorry, had to reply back because that's what I thought at first, but surely not your intention.
