Certainly a possibility.That's crossed my mind. If a ring broke and was digging into the cylinder wall, that might do it. Being that the problem seemed to be at TDC tells me that the problem is likely related to the crank/rods/pistons, not valves or oil pump or ATF pump. Maybe my son put cheap gas in the tank, and boosted it all the way home. I've got to ask him about that.
I wouldn't doubt it. But there are so many different wagons available in Europe I'm not sure if I would buy a Passat Variant. If money wasn't an issue the A6 Allroad would be my pick. Considering I don't have deep pockets like Warren Buffet, I would seriously consider an AWD Skoda Superb. I like the new Superb lines better than the Passat. In my opinion the Superb is a sportier looking wagon.True. I read somewhere that the Passat is the largest-selling wagon in Europe. I really wish VWoA would sell a Eurospec Passat wagon stateside.
I'm sure that with enough disassembly, there would be an "ah ha, there it is" moment. I've worked on plenty of engines, from taking apart my Dad's lawnmower when in grade school, to motorcycles, to Packard-Merlin V-12 P-51 engines, but can't recall any that stumped me like this thing.what are the chances that happened and you just happened to shut the engine off right before it trashed every moving part inside the engine?
So would the cams or crank have bend the valves? I thought that happens only when the belt is torn up. Anyway, these are always too confusing to me. Getting too old I guess.I was thinking you should be able to tell if it is cams or crank related since the cams and crank are at a 1:2 ratio respectively, and also if I'm not mistaken just one set of valves is interference fit in nature
If valves have been hit by piston tops, they are likely to bend, and not retract back to their valve seats. So every revolution, the same pistons and valves would be in contact, which is kind of what this felt like, before the tightening up. However, when valves don't return to their seats, the cam followers also don't stay in contact with the heel of the cam lobes, and this can be seen by watching the followers as they rise and fall with cam rotation. Everything looked perfect while I could the crank rotated, and all marks (crankshaft pulley, camshaft pulley, and cam chain sprockets) lined up just right.So would the cams or crank have bend the valves? I thought that happens only when the belt is torn up.