Stuck Compressor Clutch Plate: Suggestions on Removal

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lothian
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Location: in tori

Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby lothian » Fri May 25, 2018 6:35 am

Oh, no question about it. No shop would have dicked around with these minutiae components. They'd have recommended a new compressor with the commensurate hurty quote, without batting an eye.
Last edited by lothian on Sat May 26, 2018 6:17 am, edited 1 time in total.
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bohica2xo
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Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby bohica2xo » Fri May 25, 2018 10:37 am

So what was the resistance of the removed coil?
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lothian
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Location: in tori

Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby lothian » Fri May 25, 2018 12:12 pm

...zero.

The old coil was pretty yucky. The epoxy had melted and the resistor was exposed.

btw, the new field coil has a resistance of ~3.7Ω.
Last edited by lothian on Sat May 26, 2018 6:13 am, edited 1 time in total.
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bohica2xo
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Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby bohica2xo » Fri May 25, 2018 2:15 pm

So the failed coil was shorted?
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lothian
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Location: in tori

Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby lothian » Sat May 26, 2018 5:49 am

I'm not certain. I don't recall the result of the continuity check. One might infer that a shorted field coil would blow an upstream fuse (two 10A fuses feed both "sides" of the field coil relay). But the fuses and relay test good.

I don't get how an field coil can (apparently) "burn" without blowing out something else other than itself--maybe field coil innards are designed to fail internally, say, to prevent a fire...

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In any case, I have a new problem. But it's outside of the scope of this thread. So I started a new thread to document t'shooting it.


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ice-n-tropics
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Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby ice-n-tropics » Sat May 26, 2018 3:49 pm

FYI: The overheated field coil shows the imprint on the back side that it overheated the front compressor nose housing which can result in a crispy critter shaft seal that could leak on (1) the outer diameter or (2) under vacuum through the Teflon front lip or (3) the rear elastomer lip seal under positive pressure.
hotrodac
essaybox
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Joined: Mon May 28, 2018 12:06 am

Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby essaybox » Mon May 28, 2018 12:16 am

, I'll soak the thing best I can in penetrating oil and let it sit for a while. I need a break anyway. But clearly that clutch plate knows i mean business.
assignmentshelpuk
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Joined: Thu Jun 21, 2018 5:14 am

Re: Stuck Compressor Clutch Plate: Suggestions on Removal

Postby assignmentshelpuk » Thu Jun 21, 2018 5:26 am

I don't get how an field coil can burn without blowing out something else other than itself--maybe field coil innards are designed to fail internally.

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