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Adjusting Clutch Gap on the Ford FS10 Compressor

Question:  How do you adjust the clutch gap on the FS10 compressor?

The FS10 has a shim type clutch and it's very easy to adjust.  The clutch hub sits on a splined shaft and is held in place by a small 8mm bolt in the center of the hub. 

To adjust the gap you simply add or remove shims.  The shims resemble thin washers, which can be found at most auto parts stores in a wide variety of thicknesses. 

Existing shims can be removed to lessen the gap -or- additional shims can be added to increase the gap.

In the end, we should have about a .025 inch air gap.  Too much air gap and the magnetic clutch may not be able to pull the hub in, or be able to hold the clutch engaged under higher operating pressures.  Too little of an air gap will cause dragging and eventual  damage to clutch and hub  surfaces.

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