[redhawk44]

I see one of the intake valves is especially clean. A lot cleaner then the rest, while it doesn't explain the nock is that cylinder even firing?

[HWYSTR455]

Originally Posted by redhawk44

I see one of the intake valves is especially clean. A lot cleaner then the rest, while it doesn't explain the nock is that cylinder even firing?

That's #8, and that's where the intake leak was, as well as the general area of the knock.

I still question the timing during much of the running, I doubt it was 'right'. That also would explain the uneven burn across the cyls. Also, the idle mix screws were all over the place.

All those pics are of the passenger side head, fyi.

.

[chiphead]

I don't think you can put much stock in what the piston crowns and chambers look like. This is a high performance engine that's done nothing but idle for 2 years. It's had all 12 disciples, every street preacher and the ghost of Wolfman Jack laying on of hands and twisting the knobs trying to exorcise the demon.
It's going to show carbon build up. But it is good to notice it is happening, as continued prolonged idling while d!cking with it is going to carbon the engine up enough to cause other issues.

How deep a dive is this shop going to do? Out and apart?