Small gashes inside head?
#1
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Small gashes inside head?
I have a jdm second gen b16a and I was just topping the oil off and decided to take a flashlight and look inside with the oil cap off. At which point I noticed some small gashes maybe a half of an inch long on the inner walls, around the exhaust valve for the cylinder closest to the distributor. The car runs perfectly fine, doesn't sound like there's anything caught in there. No excessive valve train noise either. Any clue as to what this could be and if it's potentially harmful? It's dark and rainy right now and I haven't had a chance to snap a picture. I plan on taking off the valve cover once I have some free time. Just looking for some clues.
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Re: Small gashes inside head?
I know the picture is trash, I apologize. Im leaving for work in five and didn't have time to pull it off. I figured I would snap a quick picture for reference.
#5
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Re: Small gashes inside head?
Understood. If its something you're worried about, snap some pictures after work with the valve cover off and some good lighting.
To do that kind of damage, it'd have to be metal. I bet the markings were made by human hands, not the engine.
To do that kind of damage, it'd have to be metal. I bet the markings were made by human hands, not the engine.
#6
Re: Small gashes inside head?
I wouldn't worry about those, but that's me.
#7
Shit Posts: 15
Re: Small gashes inside head?
Probably made by someone wanting to adjust valve lash.
Only concern now should be if metal shavings are in the engine now.
The markings are fine now, only worry is the metal shavings.
Only concern now should be if metal shavings are in the engine now.
The markings are fine now, only worry is the metal shavings.
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#13
Re: Small gashes inside head?
Those are marks left by a dremel or other rotary bit tool. previous owner/machine shop was getting rid of oversize casting ridges...the round right part is where the work was done, and it appears that the line that takes a sharp bend is where the bit skipped.
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