I bought an e46 with a blown head gasket after my e30 was totaled and shoved into my garage while I figure out what to do with it. In e46 world if the car's been overheated the head bolts pull out their threads from the aluminum block. I sourced a new block from an e46 forum member, but it came with a surprise on cyl 6
Here is a zoomed out pic for context
The other cylinders show similar discoloration, and what looks like carbon deposits in a similar pattern, but I can't catch any of them with my finger nail, so I'm not worried about them. If you look close at the first pic you can make out a rough surface that is about 1/8 inch high, and the depth? Just enough to catch your fingernail. The black part of the line is a carbon deposit.
How fucked am I? Can I run it as is, since it's clearly been run like that before, due to the carbon build up. I'm home sick otherwise I'd be off to the machine shop tomorrow for his opinion.
Here is a zoomed out pic for context
The other cylinders show similar discoloration, and what looks like carbon deposits in a similar pattern, but I can't catch any of them with my finger nail, so I'm not worried about them. If you look close at the first pic you can make out a rough surface that is about 1/8 inch high, and the depth? Just enough to catch your fingernail. The black part of the line is a carbon deposit.
How fucked am I? Can I run it as is, since it's clearly been run like that before, due to the carbon build up. I'm home sick otherwise I'd be off to the machine shop tomorrow for his opinion.
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