mayfly

car 92 civic hatch.
motor stock b18b1

hey ht i was at the race track and miss shifted from 3 to 2. dumb mistake i know.

i pulled the head and am replacing it with a fresh head.

head is still at the machine shop getting valve guides, valve seals and springs put in.

so my question is when i pulled the head the valve in cylinder 1 had a next to nothing indent. it was a very slightly bent valve, but the piston had a new little groove in it at the valve relief from where the piston came in contact with it. its not much but something. will the new valves be ok when installed with these pistons? or is there going to be a issue with that cylinder? thanks

98civdx

Just a "light" groove? if that's the case you'll most likely be fine.
Can you post a picture of it?

I've seen cars be perfectly fine with a lot worse then groove in the piston. lol

beecee18

Smiley face on cyl # 1
A picture would help, but from your description, you should be fine.

Padawan

Depending upon how significant the groove is, I would suggest polishing out any sharp edges as best you can to eliminate the potential for a hot spot to form in that location.

mayfly

i cant get a picture now because im in the marine corps and we have "hobby shops" that we can work on our cars and it is over there right now, and i probably wont be back over there till my head is ready.

and yes its a little smiley face. i appreciate all the responses gentlemen. this makes me feel a little bit safer about putting the new head on.
thank you

mayfly

what should i use for that? like a small 3m scratch pad? or like 1000 grt sand paper?

beecee18

Depends on the extent of the damage,
I'm used to using steps of
600
1000
mothers polish paste for aluminum and other soft metals

mayfly

sounds good. ill do that!. thank you very much