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Reply to "Dirty Idle Jets? The REST of the Story."

 

Damn, Ed, go and spoil my fun, why doncha?

See? "A neat little response" was "all written out".

So close. Stan was already halfway down the rabbit hole.

I knew our master pipe fitter would see the obvious flaw in my proposed solution. The upstream side of the clog would be at the same pressure as the intake manifold, so there'd be no net pressure difference to flush anything.

Sure, you could run the downstream line to the manifold of a different cylinder (one of the cylinders being on the compression stroke, when the other was on intake), but that's still not the cowboy way.

We'd need a dedicated, high-pressure vacuum pump. Which could be actuated by the same relay that controls the solenoid valve.

And, once you're in for a dime, why not automate the whole thing? Pressure sensors in the intakes, some simple circuit that activates the valve on any cylinder with suddenly less vacuum than the others, and bam!

Any old-school 911 driver has a dry sump. How many have idle jets that clear themselves?

 

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