[DML] PCV valve failure [was: Unprotected DeLorean Ignition Circuit]
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[DML] PCV valve failure [was: Unprotected DeLorean Ignition Circuit]



David,

Now that's an interesting theory! I've never had a PCV valve fail before 
on any of my cars or truck. I understood that they are extremely low 
maintenance. But you'd know more than me about this stuff, so let me 
pick your brain. :-)

Is it common for PCV valves to fail while a car is sitting? Or could it 
have been on the way to failure and the fact that it happened when and 
where it happened (after an 800-mile trip and a two-day rest) could have 
been a mere coincidence?

Farrar Hudkins
#2613 "Sparky"

David Teitelbaum wrote:
> 
> 
> I have another possible theory. Assume this happened on a carbureated
> car. If the car did not have proper crankcase ventilation the
> crankcase *could* have built up positive pressure which could include
> oil vapors and gas fumes. They could travel through the bearings into
> the top of the distributer where the sparks between the rotor and cap
> could have ignited them. I have to consider the carbureator conversion
> could be responsible. That or again, maybe a fuel leak dripping onto
> the distributer ignited by an improperly inserted #2 spark plug wire
> which was sparking inside the well of the distibuter cap. Just
> intelligent guesses. An electrical fire IMHO would not have caused
> this all by itself. There had to also be "fuel" added to it. It DOES
> point out the weak link of not having a protected primary ignition
> circuit but that is pretty common on a lot of cars. But that is not
> what burned.
> David Teitelbaum
> vin 10757

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