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How do you tell which cylinder is number one and two on a lycoming 4 cylinder engine?

In: Airplanes and Aircraft [Edit categories]

Answer:

ID'ing Cylinder #'s on 4 cyl Lycoming

Lycoming 4 cylinder engines have numbers cast into the top of the crankcase near the base of the cylinders.

I looked at my IO-360 tonight and found the 2-3-4 but it didnt show #1, but by process of elimination ....

In the case of the IO-360 180 HP the engine cylinders are as shown

4 2

-------Front ---->

3 1

This is also the firing order, front then rear on the right, front then rear on the left. 1,3,2,4.

First answer by ID0214322658. Last edit by ID0214322658. Question popularity: 27 [recommend question].

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