Look what I found

[mark3monster]

Well finally decided to tear the 7m apart due to a blown head gasket. Here's what I found :

Looks pretty clean considering I never rebuilt it before.

Melted piston?
Here's another shot of it in different lighting.

 

[jdub]

Looks more like corrosion where coolant leaked into the cylinder. Is this where the BHG occurred?

 

[A-model_]

so whats going on with these pics?

 

[mark3monster]

Looks more like corrosion where coolant leaked into the cylinder. Is this where the BHG occurred?

Not too sure if thats where the BHG occured. When I took the head off it seemed as if it was not properly torqued. There wasn't any sign of the gasket falling apart. I don't know though. I'll put up more pictures later.

 

[jdub]

How long did the engine sit without being started?

 

[GrimJack]

That looks more like impact damage than corrosion to me.

It definitely doesn't look like the piston *I* burned. That was a smooth radius with a rough texture on the edge of the piston and valve cutout.

And dude, put on shoes. Steel toes in the garage will make you a MUCH happier guy in your old age. If I hadn't been wearing them, there would literally be no toes on my right foot anymore.

 

[jdub]

It could be impact damage...hard to tell. def not a burn/melt.