B_Swapped93

Installing my springs+retainers but noticed the exhaust valves looked alot like my civic valves that were burnt. do they look burnt/unuseable to you guys ? my car has been running rich for the past little while.

el crapitan

that just looks like normal carbonization. if you look at the valve face, you can see it's been making good contact with the head. they burn when they don't make good contact. usually due to a lack of lash, or excess carbon build up between the face and the seat.
just buff them off on the wire wheel. they'll be fine

m4xwellmurd3r

yeah they look good. The ash deposits on it is also from what I've read, a good sign that the valves are making good contact with the seats.

1998GsRIntegra

Wire wheel them and they'll be good to go.

B_Swapped93

The dish side right ?

1998GsRIntegra

Yes, and the upper section, but not the stem.

Here, this might help:

DirtyDA9

White one is from coolant in the first pic. Rest are normal, some a little rich.

bmoreb18c1

The last pic sure looks like coolant seeping past a valve, thats not good. Im guessing that the valve spring is off? If not, first thing i would worry about is the valve isnt seating properly which is going to result in a burnt valve and second, why is there coolant even there? Coolant isnt supposed to get to the combustion chamber, so hopefully its just the head gasket was bad at that cylinder which I'd imagine your replacing anyways. Make sure the head and block mating surfaces are not warped.

el crapitan

i'm pretty sure that was just coolant that was in the head when he removed it

B_Swapped93

Coolant was on my glove still and yes springs were off in those pics

Solster

This is a Burnt valve

DirtyDA9

X2 burnt valves get so hot chunks break off. Most of yours are normal, some are from rudnningnrich, and the white one usually means coolant but its the only one.

B_Swapped93

Ok thanks for the pic wasn't sure the carbon build up was throwing me off