Discolored Exhaust Valves

[dsmkid4g63t]

Hey whats up guys? I recently decided to pull me head to replace the headgasket, it was showing signs of seepage and wanted to replace the hg, timing belt, balance shaft belt and both tensioners. Upon pulling my head I found that both sets of exhaust valves in cylinders 2 and 3 were discolored, orangish and flakey, as far as I can tell there is no actually damage to the valves themselves, no chipping or pitting, just looks as if theres severe carbon build up. Im just looking for opinions on what would cause this...the head is going to a machine shop for a re-build, but still curious on what would be the root cause of this....thanks....

 

[Defiant]

Nevermind the exhaust, look at the crap on those intakes. I suspect you're burning quite a lot of oil.

 

[dsmkid4g63t]

haha yeah, i think shes just running really rich, she never smoked...ever...not even on a cold start up...ive only done one oil change on her, since ive only driven her 3 or 4 times...but i will note oil consumption on future oil changes...thanks defiant!