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Old July 16th 07, 09:13 PM posted to rec.aviation.piloting
john smith[_2_]
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Posts: 393
Default Ok, so how *do* you hotstart your IO-540?

In article ,
(Paul Tomblin) wrote:

So what would you do in that situation?

[1] Leave the throttle, mixture and prop alone from when you shut down.
Turn on the fuel pump, and crank. When it catches, quickly advance the
mixture to full, and once it stops spluttering lean it out.


The PA32-300 I fly can be fun to start when it is hot.
It depends upon how long it has been sitting since it was shut down.
For a short duration, what you described above may work.

The first thing I do is park the aircraft so the nose is pointing into
the wind. After shut down, open the oil door atop the cowl.

Flooded procedure has been my most successful procedure.

Something else to try is...
Throttle full forward
Mixture closed
Fuel pump ON for 30 seconds (no fuel goes to the engine but passes
through the fuel line to the engine then back through the return line to
the tank; this cools the fuel line and purges any bubbles in the line;
that's the theory)
Normal start procedure

One of the things I learned when flying an IO-320 in a homebuilt
amphibean was that there were "sweet spot" throttle and mixture postions
(right combination of air and fuel) where the engine would start up
immediately. These were learned through trial and error.