[T3] Update with a Bowl Full of Rust Flakes

[SCS Crewcab]

How does the full tank keep the gas from gumming up the pump internals?


On 7/23/2011 10:04 PM, Jim Adney wrote:
> On 23 Jul 2011 at 21:48, SCS Crewcab wrote:
>
>> Another thing when you're storing an FI car for very long. Disconnect
>> the 3 fuel lines from the pump and put them in an empty pail. Turn the
>> engine over until all the gas is pumped out. Empty the pail and put a 3
>> to 1 mix of 10w oil and Marvel Mystery oil. Turn the engine again over
>> to fill the pump with the light oil mixture. This will keep the pump
>> gears from getting gummed up with varnish from the old gas and protect
>> them from corrosion. When you go to start it, make sure to pump out all
>> the oil mix before you connect it back to the engine.
> I'm sure this works great, but it's lots more work than necessary.
>
> There are no gears in the FI pumps. They work just fine sitting
> filled with gasoline, as long as it's not just a little bit of gas
> that's allowed to dry out. Yes, this works for years.
>
> It's the drying out that leaves the gum, which is just the residue
> that's left when the volatile parts of the gas have all evaporated.
>
> Again, the key is to store with a full tank, and no extra vent paths.
>