Hard hot start on 560SEC

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Bill Bunn - 20 Aug 2007 19:54 GMT

While checking the fuel accumulator, I noticed black soot blown from the
exhaust on starting. Must be running very rich which maybe explains the
rough idle. Runs fine at speed, tho.
I am running out of ideas.

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-->> T.G. Lambach <<-- - 20 Aug 2007 20:17 GMT

May have a leaking fuel injector. Bet it starts very easily when cold.
If it has a quick cold start and awful hot start my $ are on a leaking
injector.

It can be found by removing the spark plugs when the motor is cold; one
or more will be wet with fuel. I speak from similar experience; one fuel
injector leaked after the hot motor was shut down.

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Roland Franzius - 20 Aug 2007 20:27 GMT

Bill Bunn schrieb:

> While checking the fuel accumulator, I noticed black soot blown from the
> exhaust on starting. Must be running very rich which maybe explains the
> rough idle. Runs fine at speed, tho.
> I am running out of ideas.

Try for a difference closing the cold start regulator bypass fuel line.
Could be you have a leak there.

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Roland Franzius

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