micahdaniel Posted May 21, 2007 Report Share Posted May 21, 2007 Thanks to the porno hacker, my original post was deleted. Here's a summary: My A/C started blowing fuses a couple weeks ago. You guys steered me in the direction of the clutch coil. I've taken it apart to the coil and found lots of dirt and grime. I cleaned it all up and put it back together (since I didn't have the part yet). After getting it back together, it worked for a while, but now its back to blowing fuses. Here's the pics of my dissection: I used a big socket to protech the shaft when pulling the pulley: Coil when dirty: Coil cleaned: In the pics below, you can see that the plate and pulley surfaces are worn. It even started to wear on the rivets. My theory is that this weardown widened the gap so much that the coil had to work beyond its designed range to keep things working. Maybe this is what did it in? I suspect that it isn't necessary to replace these as long as I set the gap correctly, but I will anyways since it isn't that much more to do it all at once. I purchased a new clutch (it's labeled reman but looks immaculate to me) with coil from Autozone for $99. They don't have this in their database for the Sedan Deville, only the Concours--but I verified they are interchangable on rockauto.com. I'm going to replace the whole thing. The question I have is about installing the new coil. Will I have to stake it in like my a/c book says? Anyone replaced the coil before know exactly what I have to do to remove and install? Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 21, 2007 Report Share Posted May 21, 2007 I can't help you with your question but I wanted to say, nice job and great photos! Keep up the good work PS, what camera are you using, the contrast is outstanding? Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
epricedright Posted May 22, 2007 Report Share Posted May 22, 2007 I can't help with the coil R&R. I only had to go as far as you are now. I believe MAC replaced his coil and I imagine Kevin (KHE) has as well. http://caddyinfo.ipbhost.com/index.php?sho...049&hl=coil http://caddyinfo.ipbhost.com/index.php?sho...893&hl=coil Awesome photos! I wasn't able to use a 3-jaw puller, had to buy a 2-jaw. It appears you have a little more room in there than I did. I agree with your decision to replace the hub bearing assembly and clutch plate - might as well being it's already apart. Good job! Link to comment Share on other sites More sharing options...
KHE Posted May 22, 2007 Report Share Posted May 22, 2007 If you are installing a new hub bearing and clutch plate, the bearing should already be staked to the clutch plate. I don't have my shop manual handy but I recall, the only thing that needs to be staked is the hub bearing but I'd need to double check the manual. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
micahdaniel Posted May 22, 2007 Author Report Share Posted May 22, 2007 I couldn't wait because I'm going on a road trip very soon. I modified my puller (thinned down the fingers) so it could grip behind the coil. ***The old coil measured 22ohms and the new coil measures 36! For installation, I used a much bigger puller which gripped the compressor itself and allowed me to press on the new one. For the pulley, I spread a 2x4 accross it with a hole in the middle (to protect the shaft) and hammered it (gently) on. I'm short on time now, but I'll post all the pics later. With God's help and your advice, my a/c is working now. Thanks everybody. Link to comment Share on other sites More sharing options...
KHE Posted May 23, 2007 Report Share Posted May 23, 2007 If you are installing a new hub bearing and clutch plate, the bearing should already be staked to the clutch plate. I don't have my shop manual handy but I recall, the only thing that needs to be staked is the hub bearing but I'd need to double check the manual. The clutch coil does need to be staked in place at three points spaced 120 degrees apart. Use a 1/8" punch and stake .010-.015" deep. Sorry for the misinformation in my earlier post. Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 23, 2007 Report Share Posted May 23, 2007 I couldn't wait because I'm going on a road trip very soon. I modified my puller (thinned down the fingers) so it could grip behind the coil. ***The old coil measured 22ohms and the new coil measures 36! For installation, I used a much bigger puller which gripped the compressor itself and allowed me to press on the new one. For the pulley, I spread a 2x4 accross it with a hole in the middle (to protect the shaft) and hammered it (gently) on. I'm short on time now, but I'll post all the pics later. With God's help and your advice, my a/c is working now. Thanks everybody. I know you said you did it gently, but I would not hammer on it again, use an installer. I do believe that the manual states NOT to hammer it on.. Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
micahdaniel Posted May 23, 2007 Author Report Share Posted May 23, 2007 Pulling the coil, I protected the shaft with a big socket and some other cylinder part I had lying around: Coil freed: Compared to new (22 ohms old, 36 new): Installing new, I used a bored 2x4 so that I'd be contacting only the coil: Laying a ratchet across the 2x4, I contacted it with the big puller. The puller was grabbing the compressor and mounts way in the back. The 2x4 broke, but handily pressed the coil on anyway. BTW, there were no stakes in the old coil. To get the pulley back on, I used this 2x4 and a 3lb hammer. Hopefully the 2x4 absorbed any dangerous hammer shock. The center piece screws onto the inner shaft--must be tight. The black part is turned clockwise to push the clutch plate back on. Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 23, 2007 Report Share Posted May 23, 2007 Nice sequence of photos, thanks Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
KHE Posted May 23, 2007 Report Share Posted May 23, 2007 Nice job! If you would have taken the car to the dealer, it would have been about $1000 - they never want to replace coils or shaft seals - just the whole compressor...... Kevin '93 Fleetwood Brougham '05 Deville '04 Deville 2013 Silverado Z71 Link to comment Share on other sites More sharing options...
epricedright Posted May 24, 2007 Report Share Posted May 24, 2007 Nice photos! Hopefully the hammering didn't break your shaft seals...fingers crossed for you. When I installed my new hub bearing, I used Mike's clutch plate installer tool and some scrap steel (some old door lock strikes plates and washers I had laying around actually) behind the big nut and tightened that nut down to press it on. After installing the old clutch plate and adjusting the air gap to both .020 & .030, I had a slight squeal upon engagement. So like a dummy (being the perfectionists and not leaving well enough alone) I decided to replace the clutch plate with a new one. Putting the clutch plate back on in haste (due to being frozen in my garage last January), I forgot to use the spinning washer with the installer tool. That caused a bind and snapped the threaded shaft end off the compressor. I was only 1/4" from having the clutch plate fully on when it broke. Fearing I'd break the shaft seal by hammering it on, as it was a very tight fit to press on, I decided to replace my compressor. I still have the new hub bearing assembly and clutch plate if anyone needs it. I noticed you were very careful protecting that shaft end...must have read my past posts huh? I also noticed in your last photo you DID use that spinning washer installing the clutch plate. Good job! Link to comment Share on other sites More sharing options...
micahdaniel Posted May 24, 2007 Author Report Share Posted May 24, 2007 Thanks, Yeah, I'm praying I didn't mess anything up. So far, so good. I don't remember, did you replace your coil? I've had a couple people tell me the manual says to stake it in 3 spots. I didn't, and didn't see any stakes on the old coil. I hope I don't need to take it apart again... The books all say there should be a nut on the outside of the clutch plate, but there wasn't one so maybe the stakes are obsolete too? Link to comment Share on other sites More sharing options...
micahdaniel Posted May 31, 2007 Author Report Share Posted May 31, 2007 Just got back from a 2,000 mile road trip with heavy a/c use. It's working great. Looks like this was a success. Link to comment Share on other sites More sharing options...
BodybyFisher Posted May 31, 2007 Report Share Posted May 31, 2007 Just got back from a 2,000 mile road trip with heavy a/c use. It's working great. Looks like this was a success. Great job and thanks for sharing it with us. You saved yourself an entire compressor, there are very few shops that would do the job you did, most are parts replacers!!! Mike Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
WarrenJ Posted May 31, 2007 Report Share Posted May 31, 2007 . . . . there are very few shops that would do the job you did, most are parts replacers!!! Mike Sadly, that is so true. Great job Micah; thanks for the great photos. Regards, Warren There is no means of avoiding the final collapse of a boom brought about by credit expansion. The alternative is only whether the crisis should come sooner as the result of a voluntary abandonment of further credit expansion, or later as a final and total catastrophe of the currency system involved. - Ludwig von Mises Link to comment Share on other sites More sharing options...
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