Need engine help!! At my wits end

[YakkoWarner]

I'll be honest I don't know much about your specific problem, but I'd love to know where you got that camera and how much it costs because that is some of the clearest imaging from inside a cylinder I have seen and I probably should look into getting one myself....

 

[Nick88]

How bad is the top of the number 8 piston? And did you do a shot of the entire bore to see if the gasket was still visible around it or just by the plug? If that much oil is dumping onto the piston in #8, there's something more than just a head gasket that's going on with it. If I were you, start running a compression test on all 8 cylinders. That'll at least get you pointed in the right direction to tell you where you need to start looking deeper into.

Oil around the whole cylinder, the top of the 8 piston had sitting oil, but no damage.

 

[Nick88]

Based on the position of the plug hole and valves that area would be to the outside of the engine not the valley. Coolant passages would be closer; number 8 has an oil drain back but that's in line with the valves at the rear of the deck. Mabey valve guide seals on that hole and its pooling there because that's the low side of the cylinder. Just thinking..

Crosshatch looks good.

The whole cylinder has oil around it at the top, the others don't, the valley side has too

 

[Nick88]

Just thought of something depending on what those heads are could be pulling it in threw the rocker stud if it's threaded and wasn't/didn't seal. Some go into the intake runner.

It has thread sealer on all of them and a good amount at that.

 

[Nick88]

I'll be honest I don't know much about your specific problem, but I'd love to know where you got that camera and how much it costs because that is some of the clearest imaging from inside a cylinder I have seen and I probably should look into getting one myself....

You must be registered for see images attach

120 bucks after tax, came over night with Amazon prime.

 

[xm20k]

Could be head gasket didn't seal I would think it would be more likely to pull coolant, but I've seen stranger things. What head gasket are you running do you know specs?

 

[Ricko1966]

Check header temp at all 8 ports.

 

[Nick88]

Could be head gasket didn't seal I would think it would be more likely to pull coolant, but I've seen stranger things. What head gasket are you running do you know specs?

Felpro 1203 I want to say, .042 compressed thickness and stainless fire rings i believe

 

[Nick88]

Check header temp at all 8 ports.

What should I look for?

 

[Ricko1966]

What should I look for?

Make sure they are all getting fairly equally hot, one real hot is lean 1 real cold means it's not firing. Wondering how temp is on #8 as in maybe still pulling oil from the valley,or not firing period and the oils accumulating from never being lit off.

 

[xm20k]

Felpro 1203 I want to say, .042 compressed thickness and stainless fire rings i believe

1203 is an intake gasket.

If you're running something similar to this, did you retorque after first run? Fel-Pro recommends running to operating temp once and retorqueing.

Pardon Our Interruption

 

[Nick88]

1203 is an intake gasket.

If you're running something similar to this, did you retorque after first run? Fel-Pro recommends running to operating temp once and retorqueing.

Pardon Our Interruption

That was a typo, my apologies I meant to type 1003

 

[Hilllbilly]

Sounds like a Friburger and Dulcich Debacle


Im wondering how you:
"comp cam flat tappet that wiped out on break in,"

 

[chevdude]

I bought a truck once that was smoking and burning oil like that. Got her cheap too. Had dual exhaust so it was easy to tell that it was the passenger side of the block.
So I pulled that head, set it on the bench and guess what I found.
It was the paper gasket from a quart of oil. About the size of a quarter. Sitting there, perfectly covering the rear oil return hole.
The number eight plug fouled the worst. six and four progressively less.
put her back together with some umbrella seals and my kid is still driving it.

 

[1967Ragtop]

I know you did a compression check, but oil soaked rings will record a much higher PSI. In fact, while running a compression check, you can diagnose bad rings by squirting some oil into a low compression cylinder and running the test again. If the rings are pretty worn, you will see a pretty good jump in the numbers. You might want to pour some thing into that cylinder and cycle the engine a few times to flush any residual oil. Maybe something like Seafoam or another engine cleaning product. I would pour some in, cycle the engine a few times, pour in some more, and let it drain past the rings overnight. Then I would run a compression check on that cylinder and look at the new numbers. That might help eliminate the rings as the problem, or it might show they are the reason your burning so much oil. Blow by, oil usage, and lots of blue smoke add up to a cylinder or two not sealing adequately.

If the rings turn out to be okay, I would remove a valve cover and replace the valve seals on that cylinder. Just make sure you have that piston all the way up so the valve cannot drop down when the keepers are removed. Ask me how I know that is a possibility.

Good Luck,
Mark