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96 EX V6 intermittent AC cooling.
On Jun 2, 3:13 pm, "IB" > wrote:
> > Update: I checked the red clutch/coil lead in "failed" mode & I still > > had battery voltage which proves my relay is fine. I then forced the > > clutch against the rotating pressure plate (exciting - I recommend a > > thin wooden stick/pole - less sparks than metal) & lo & behold, it > > engaged. The gap is out of spec - not by a huge amount but it is > > bigger than the outside tolerance. I guess that over time the natural > > progression is for everything to wear & loosen to a wider gap. > > So, it seems clear I need to pull the clutch & remove some shims. > > I've never messed with a compressor clutch & there is precious little > > clearance from the end of the clutch to the inner fender - maybe > > 3/4". I'm not sure what I'm getting into here. I don't think there > > is enough clearance without pulling the compressor & then I'm not sure > > you could do it without evacuating the system? Can you do this with > > the compressor in place or must it be removed? I'm wondering if I > > might be better off to take it to a reliable mechanic & have them do > > this. I wouldn't expect there to be too much to it for them....maybe > > 1 hour labor or something like that? Any opinions or experience on > > this? Thanks again. > > Ok, looks like we diagnosed it. If you can get to the nut / bolt on the end > of the compressor, try loosening it - you may need to arrange something to > lock the clutch plate from turning. Then, if you have enough space, you > should be able to remove the clutch plate, and you should find some shims > which can be removed. > > If you don't have enough space the compressor must come off, which means > regassing. > > www.poolecool.co.uk The only way to get at the end center bolt is to dismount the compressor from the mounting bracket & move it around as much as I can within a limited space. Just for grins I tried to test the coil resistance. I'm using 2 Micronta meters & I'm getting right at 3 ohms from on1 & 3.25 ohms from the other. These aren't expensive meters so I know I can't expect high accuracy. If a coil was getting weaker, would the resistance increase or decrease? Also, I'm not sure what the spec is for this coil. I have a shop manual for a 96 4 cyl that states 3.6 +- .2 ohms. I have a 96 V6 & I've already found some differences between the AC systems. Does anybody know what the clutch coil resistance should be on a 96 EX V6? Thanks. |
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