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These engines are unique in that they use super clean (regularly changed) oil to operate the intake valves and therefore start the car. There is one camshaft for the exhaust valves only. If the car hasn't been driven in weeks or months oil drains out of the cylinder head. You must crank the engine over multiple times at up to 10 seconds each time and wait 15-20 seconds between starts. This could take maybe 5-10 tries or more before the engine starts. You would want a battery charger hooked up whilst doing this. I see NO reason an oil pump would need to be changed nor any dealer intervention. The car will start.

This engine is 1400cc at 101 horsepower. A 68 VW bug was 1500cc and 53 horsepower. So that's about double the horsepower with this design and better gas mileage a far fewer emissions.
 
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