Scratched Up Piston

[TorchRed_4.0]

Finally pulled the heads off to address my oil burning issue and piston #8 looks like this. Need a new piston or can this one be fixed?

 

[7991LXnSHO]

What was loose in there? How do the head and valves look? If the bore is scored from the shrapnel that did this, you will need more than a new piston and three rings.
(I am putting money on a loose spark plug electrode.)

 

[TorchRed_4.0]

What was loose in there? How do the head and valves look? If the bore is scored from the shrapnel that did this, you will need more than a new piston and three rings.
(I am putting money on a loose spark plug electrode.)

Dude I found a damn valve guide in there LOL previous owner was on something.

 

[TorchRed_4.0]

What was loose in there? How do the head and valves look? If the bore is scored from the shrapnel that did this, you will need more than a new piston and three rings.
(I am putting money on a loose spark plug electrode.)

Also the valves on cylinder 8 are totally black from oil the car has been burning since I got it.

 

[Ryuk]

I'd bet the bore is scratched up pretty good too.

 

[Monkeybutt2000]

What does the cylinder look like?

 

[nickyb]

Awww

 

[7991LXnSHO]

Also the valves on cylinder 8 are totally black from oil the car has been burning since I got it.

If it had aluminum heads, they would need at least touch up. I’m curious to see how cast iron did against the valve guide. IMO a cast or hyper piston that looks like that is waiting to blow chunks.

 

[HemiRick]

When I had my heads off last piston 8 was all marked up from some small piece of metal, I smoothed the worst of it....the cyl still seals fine and doesn't burn oil. With yours burning oil and dark exhaust valve it needs attention.

 

[General karthief]

I'm willing to bet that piston has some hair line fractures and needs to be repurposed as an ash tray
JMO

 

[nickyb]

General that would be an asstray

 

[General karthief]

General that would be an asstray

And just what are you trying to say there Nick?

 

[nickyb]

The previous owner who dropped the guide in there was an ASS, and now all that piston is good for is a Tray, hence AssTray...

 

[2000xp8]

I would not put this engine back together without a complete overhaul.
Burning oil, dropping valve's, piston damage combined with a questionable previous owner makes anything other than a complete rebuild a gamble. That is how cars get left to rot. You do a bunch of labor to fix something, then it's not right again and motivation is gone to do it again.
The heads should also get a valve job and repair.

 

[Monkeybutt2000]

I'd grab a JY Exploder engine.