i have a valve seat pop out and it did some damage my question is can it be fixed i took it to a machine shop the guy look at me with a little confusion he said it cant be done anyone out there have another answer
It depends damage. The early duel ports also cracked because the mettle used was not good. A new one is not to hard to find or to expensive.
Replacing the valve seat can be done, but if there is enough damage, it still may be risky. Swapping the head for a rebuilt one is much safer. You turn in the old head as a core, and no one will even care that is may not be rebuildable. They are only $159, exchange.
In most cases it can be repaired. You just need to find a machinist who knows what he is doing. Call some local VW shops and ask who they use.
It depends on the amount of damage. Before they relocated the oil cooler it blocked airflow to one cylinder and the exhaust valve ran hot. The valve guide wore, the valve started hitting the seat off center and the valve head would break off to bounce around inside the cylinder, often putting a hole in the top of the piston and dropping debris into the case. The cheapest solution was to find a used motor to put in. If there's no damage to the piston, you might be able to repair the head but that valve bouncing around usually does a fair amount of damage.
If he is confused walk away. No, not really. The head comes off and maybe the head is still good but the valves and valve guides are replaced. While the head is off you have 2 individual pots(the cylinder) same like a single cylinder motorcycle. That is one with one piston. You got 4 pots with 4 pistons. - - - Doing a complete engine rebuild using a kit is cheaper than doing each one individually x's 4. as if one has popped off, the others are near that point. I am guessing #3 cylinder exhaust valve popped off. Or see where you can get some rebuilt heads( or new ones) but chances are you need pots because you are a smoker. Maybe if you ask around to various machine shops, to see if they have a rebuilt VW engine kicking about. Sometimes they do. Might be cheaper than a kit..
