Author Topic: Easy FIP timing test  (Read 243 times)

sens

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Easy FIP timing test
« on: June 12, 2025, 20:13:16 »
Hello,

To check whether your FIP is installed correctly or 180 wrong, there might be a test you can do without removing the FIP or a check valve on the FIP.

In a 4 stroke engine fuel is injected in the beginning of the first stroke (assumption 1).
Ignition is at the end of the second or in the beginning of the third stroke.
So half way the total cycle.

The moment of ignition and injection should alternate like a ticking clock.
If the FIP timing is 180 dgr off, ignition and injection would be at the same moment. (assumption 2)
The engine will run, but rich and with less power.

I disconnected the fuel line of injector 6 and mounted a spare injector.
The stroboscope on cil 6 showed me the spark flash of that cilinder.

Looking at the video I took with my iPhone on slow motion, you can see the timing of the spark and of the injection.

My conclusion is that based on this video I think the timing of the FIP is correct.


Would you agree??
Any comments??

Thanks! Halvor




« Last Edit: June 14, 2025, 06:14:06 by sens »
Halvor Sens

 

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