Hi Everyone,

I have a 1999 v6 4wdr and I am having AC issues. When I turn on my AC, my compressor does not engage. If I pop the hood and give the ac compressor clutch a little tap, it grabs and engages.

This leads me to believe that my air gap on the compressor/clutch is wrong. Am I on the right track? If so, how do I measure the gap? What should the measurement be?

Thanks!

 

.025 or less but not rubbing. You need a clutch install/removal tool to adjust air gap. The nut on that shaft wont change it, if there is one. If there isnt dont sweat it.

Make sure your pulley bearing isnt sloppy or noisy. And the 'web' on the pullley clutch face may be broken, which also may cause the problem.

 

*sniped by PF* That's what I get for writing the post, then heating up my lunch before submitting it!

For the HT6/HD6 compressor, the air gap should be between 0.5mm (0.020 inch) & 0.75mm (0.030 inch) and can be measured using a typical feeler gauge set. If a 0.035 inch feeler gauge fits, then you will have to remove the outer clutch assembly & remove shims to get into the desired range.

From my experience, the gaps are usually good and it is the coils that degrade over time, not putting out enough magnetic force to pull the outer clutch assembly into the pulley & lock them together.