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Although, it was 'carboned up', if that makes sense. For new pistons, it was black with a 'crust'. I found that disturbing, but didnt make anything of it, as I was guided by a pro when putting all together. So it must've been right.......RIGHT? I know better now.
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So, I was advised that pistons build up carbon fairly quickly. Well, not that quick! Look at the pics below. I kid you not, there is not Photoshop'ing going on here, it's the same engine! #1&2 is clean(and corrosponding head), but check out #3&4!! And this is after about a total of 5minutes of the motor running(however, I didnt clean the #3&4 pistons the first time around).....
Heads:
(clean ones are #1&2. Also bear in mind these are the new recon heads that I have *just* had done)
#1&2 piston heads:
#3&4 piston heads:
So looking at these pictures, would you think that there is something else wrong somewhere?