I had the same thing happen with a VW diesel pick-up with the same engine. The breather fumes supply enough crankcase oil to the cylinders that it will run on it, albeit fogging the highway at the same time. There is a way to run a pipe from the breather on the valve cover so it tees into the vacuum pump to crankcase return line thus allowing the oil to run back to the crankcase. This may help for a while. Also, there is a plastic baffle you can put over the camshaft inside the valve cover which reduces the amount of oil getting to the breather. This can help for a while too. In my experience though, at high RPM it will still runaway The only way to fix it is pull the engine down and put new rings in it. I was able to do that, leaving the bores and pistons original therefore doing the job cheaply. I just pulled the head off, oil pan off and did the job with the engine in the car. Im not sure if there is good enough access in the vanagon though. Good luck Steve Cotsford |
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