Hello S2000 fans,

Long story short I was taking the head of my car and the head manifold still had one of the coolant houses on the bracket and pulled back on me, stupid. During that processes and setting it done to remove the hose. Cylinder 4 piston got a scuff and was wondering what you guys think. I am thinking its fine but want a second opinion. I am not advanced when it comes to mechanics so I was thinking maybe someone who is can share some light. Here is some picks. Also any solutions if some type of repair is needed or surfacing. Thanks

 

Nor I an engine specialist but so long as whatever part of the block did the scraping was not in a sensitive area or not significantly damage if so, that wouldn't bother me. Curious what someone who knows what they're talking about has to say.

 

Do you think it will need to be replaced or soes
it have the possibility of buffing it out.

 

Just take of the high spots

 

 

Rubbing down paper,if you don't That may cause some detonation.

 

I'd recommend soaking the piston with some top engine cleaner (basically de-carbonize it) and then re-evaluate it.

If there' is legit SCUFFS then lightly sand it down by hand. If there isn't any scuffs (smooth if you drag your nail on it) dont worry about it IMO.

 

Now I wonder

 

in theory any high spot on the piston from the scratch will get hotter faster than the rest of the piston and could cause detonation. if you rub your fingernail across it and its not snagging it probably isnt a big deal

 

Gotcha, any ideas on how to properly remove the high spots. I will be going to check the piston with my finger nail today but I have a feeling based on the picture I will have to remove the high spots. Also do I risk a piston being unbalanced by smoothing out the high spots?