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What could cause this kind of buildup I'm seeing for the intake valve? Any cause for concern as I refurbish? The other head they were all decent, as are the remaining 3 on this head.
Stock 302. Head/intake manifold gasket were intact. This is cylinder #4. The cylinder and piston look identical to the other 7.
i'd be taking a good look at that cylinders valve guide wear,the bore, and rings, as what i see is a lot of OIL , always going to be carbon on the intake thanks to the cams valve overlap pushing un burnt gas back at the intake ,but thats way excessive
It's actually right above this cylinder on the valve cover
Originally Posted by charlie g
i'd be taking a good look at that cylinders valve guide wear,the bore, and rings, as what i see is a lot of OIL , always going to be carbon on the intake thanks to the cams valve overlap pushing un burnt gas back at the intake ,but thats way excessive
I soaked it all down with some WD40 prior to taking the pic. It was bone dry prior when I took the valves out. Planning to clean it up later.
Originally Posted by Franklin2
Looks like that engine sat around for a long time and that intake port got water in it.
The engine did sit for about 25 years. Its ran as recent as a couple of months ago, but not very well.
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