850/960 etc. A/C clutch quick fix - Page 2

500dollar744ti · 07-02-2012, 12:34 AM

i suppose it's a quick fix for more cars than i initially thought.

that's good it's working for you guys, i know i gotta have my a/c for the summer.

linuxman51 · 07-02-2012, 08:03 AM

yep. with the 100+ degree weather we've been having, it's nice to have that working. spent all weekend sorting out other bs climate issues as well.

makncheese · 07-05-2012, 10:25 AM

I posted this in a thread I started, but I think it makes sense to ask it here rather than there.

Why would a clutch with this issue engage for 10 minutes, and then shut off every time? I'm curious about the dynamics of the issue. Is something moving down there that expands with engine heat? If so, wouldn't the engine have to cool before it will engage again?

I'm curious as to why this happens.

linuxman51 · 07-05-2012, 11:38 AM

I dunno on these other ones, mine slipped non-stop so it wasn't an intermittent thing. in fact, for me, this was kind of a last-ditch effort before replacing the compressor, it just happens to have worked out really well.

gsellstr · 07-05-2012, 01:05 PM

Heat will change the characteristics of the magnetic strength of the coil, flexibility of the metal straps, and as things expand or contract, how wide the gap may be. Everything combines into 1 issue. I had the same issue you described in your other thread in the wife's 850R until I fixed the gap, been happy for 3 years now.

makncheese · 07-05-2012, 01:38 PM

Quote:

Originally Posted by gsellstr

Heat will change the characteristics of the magnetic strength of the coil, flexibility of the metal straps, and as things expand or contract, how wide the gap may be. Everything combines into 1 issue. I had the same issue you described in your other thread in the wife's 850R until I fixed the gap, been happy for 3 years now.

Thanks for the info. I was thinking it had to heat related, but not sure how it could be.

black850 · 07-05-2012, 01:54 PM

What guage mechanics wire or will they all work?

linuxman51 · 07-05-2012, 04:40 PM

I dunno on that, I used 035 welding wire for my fix

dalek · 07-05-2012, 08:42 PM

Is mechanics wire the same as safety wire?

500dollar744ti · 07-05-2012, 11:47 PM

i think it's similar to safety wire, it would certainly serve the same purpose. i've always called it mechanics wire. we just use it to hang calipers up out of the way when doing suspension work or to drag wiring harnesses through places you can't get to easily.

i think it's actually called mechanics wire though. you can use whatever as long as it bridges the gap and it's strong enough to hold. i'll have to see what gauge mechanics wire i've been using to do this so i can share on here.

makncheese · 07-07-2012, 03:48 PM

Well, I discovered that it ain't the gap. Wired it up but it's something else.

The a/c comes on, stays cold for about 10 minutes, and then stops. I can prolong the agony by turning off the a/c off before it shuts off, leave it off for 10 minutes, and then get another 10 minutes out of it.

gear whine · 07-29-2012, 02:27 PM

Trying this today...hoping it works saves me money to not have to get another compressor.

FlyingTog · 07-29-2012, 06:17 PM

Also trying this soon. My car does exactly this and I was just roaming around TB looking for info on it. My mom's car's A/C is all FUBAR too. Glad I found this. Thanks Matt!!

ekanenh · 08-23-2012, 08:28 AM

I'm going to try this on a 2000 v70 (FWD).
What is the best way to access the compressor? (From the top there is clearly not enough room to work.) And what is the minimum parts that have to be removed to gain the access?

smokeyfan1000 · 08-24-2012, 11:29 PM

Quote:

Originally Posted by dalek

Is mechanics wire the same as safety wire?

Real Safety wire is usually stainless steel IME, and you should use safety wire pliers to use it.

Mechaincs wire is usually soft steel wire

stove · 08-27-2012, 04:54 PM

Quote:

Originally Posted by 500dollar744ti

because we are doing this in the car with the compressor bolted up, most of them are on FWD cars and you have to pull the compressor to remove the clutch.

Not to say your fix is a bad one, but, no you don't. I re-shim probably 10-15 of these per year, it's not easy, but I never remove the compressor, just the RF wheel.

500dollar744ti · 08-29-2012, 07:22 AM

the last one i did the proper way, i could swear i had to remove the compressor, maybe i removed it unnecessarily, either way it started acting up again a year later and i just put the wire shim in and it's been fine for the last 6 years.

EricF · 09-02-2012, 09:42 AM

Anyone try putting C-clips on? Wonder what the appropriate size would be. Seems like that could definitely be a possibility. I need to measure the spacing on my 850, it's always been a question of mine (thought it was A/C charge, but seems to be holding steady in the range after sitting for a year or more so who knows).

500dollar744ti · 09-02-2012, 07:06 PM

i tried that on one of my first attempts and they lasted for about a week then flew out one day at high rpm.

07-02-2012, 12:34 AM	#26
500dollar744ti still rides with MrDoug Join Date: Feb 2007 Location: Fairfax, VA	i suppose it's a quick fix for more cars than i initially thought. that's good it's working for you guys, i know i gotta have my a/c for the summer. __________________ -Matt 1989 744T- 16v turbo, '94 FD-block, RSI pistons/rods, GT35R, Tial 38mm, RFL, MSnS-E, DSM spark, 100lb Delphis, 4.6 springs, Bondo header, Heebspeed intake, Q45 90mm TB, Bosch 044 FP, 12x24x3 ebayIC, w/c t5, Clutchnet 4puck/PP, 4.10 G80, IPD sways, 960 brakes. 1983 Ford F150- 302ci, C6/4x4, 7" lift, 35s. 1990 Cobia San Marino 225 ECS- MCM 350 Mag, GM Bowtie Intake, Bulletspeed lower, HR-Titan 20p. the rest: 1996 850t 179k, 1998 S90 175k, 2004 V70 2.4 175k, 2005 XC90 2.5t AWD 122k.

07-02-2012, 08:03 AM	#27
linuxman51 ARRRRHARHAR Join Date: Dec 2002 Location: mont, AL	yep. with the 100+ degree weather we've been having, it's nice to have that working. spent all weekend sorting out other bs climate issues as well. __________________ "They bum rushed them in their own crib, they drank all their beer, they partied with their ladies and they left with the trophy" Megasquirt Tuning! Plug and play LH 2.4 Megasquirt, now with stealth mode! ported volvo heads

07-05-2012, 01:05 PM	#30
gsellstr Vintage anti-ricer Join Date: Oct 2004 Location: Somewhere in a northern California smog bank	Heat will change the characteristics of the magnetic strength of the coil, flexibility of the metal straps, and as things expand or contract, how wide the gap may be. Everything combines into 1 issue. I had the same issue you described in your other thread in the wife's 850R until I fixed the gap, been happy for 3 years now. __________________ RIP Doug "Mr. Doug" Williams, 4/15/2009 74 144 B20 http://forums.turbobricks.com/showthread.php?t=224983 90 745Ti, AW71L, IPD bars/springs, Koni SA's, JVAB B230FT, Big Valved 531 head, IPD Turbo cam, GT2871R @ 18psi, TLAO chips, E85, NPR, 3.5" DP, 3" DP-back, MSD, TruTrac, Wilwood BBK If you need Superpro bushings PM me or check the current GB, running until 3/31/13 at http://forums.turbobricks.com/showthread.php?p=4493644).

07-05-2012, 08:42 PM	#34
dalek Benchracer Tribe Join Date: Oct 2005 Location: Gainesville, FL	Is mechanics wire the same as safety wire? __________________ "you can't leave your thingy hanging in public... you can get arrested." "What's Arkansas supposed to be, Kansas for pirates?" Forg "I think I can touch the tire. Damn! I can touch the tire! That hurts!" 240Psycho (on the back seat of my 94 Jetta while I was driving to a J/Y) "Use the barbed adapter like what I use to inflate the air camping mattresses and my dates." FTF Engineering i am inspired. i will replace my windsheild... with an intercooler.swedishK Feedback!

09-02-2012, 09:42 AM	#43
EricF Volvospeed Spy Join Date: Jun 2003 Location: St. Pete FL	Anyone try putting C-clips on? Wonder what the appropriate size would be. Seems like that could definitely be a possibility. I need to measure the spacing on my 850, it's always been a question of mine (thought it was A/C charge, but seems to be holding steady in the range after sitting for a year or more so who knows). __________________ -Eric -1995 850 turbo - Ridiculous modifications list.. -1984 244 GLT - Blue.. 14.0 at 100.2.. TD04HL-19T-conical (SOLD) FWD versus RWD Project - Who will win? (240 won ET, 850 won trap speed) "...of all the liars among mankind, the fisherman is the most trustworthy." ~William Sherwood Fox

07-05-2012, 10:25 AM	#28
makncheese Board Member Join Date: Mar 2009 Location: Southern CT, USA	I posted this in a thread I started, but I think it makes sense to ask it here rather than there. Why would a clutch with this issue engage for 10 minutes, and then shut off every time? I'm curious about the dynamics of the issue. Is something moving down there that expands with engine heat? If so, wouldn't the engine have to cool before it will engage again? I'm curious as to why this happens.

07-05-2012, 11:38 AM	#29
linuxman51 ARRRRHARHAR Join Date: Dec 2002 Location: mont, AL	I dunno on these other ones, mine slipped non-stop so it wasn't an intermittent thing. in fact, for me, this was kind of a last-ditch effort before replacing the compressor, it just happens to have worked out really well.

07-05-2012, 01:54 PM	#32
black850 Board Member Join Date: Aug 2011 Location: Bethlehem, GA	What guage mechanics wire or will they all work?

07-05-2012, 04:40 PM	#33
linuxman51 ARRRRHARHAR Join Date: Dec 2002 Location: mont, AL	I dunno on that, I used 035 welding wire for my fix

07-05-2012, 11:47 PM	#35
500dollar744ti still rides with MrDoug Join Date: Feb 2007 Location: Fairfax, VA	i think it's similar to safety wire, it would certainly serve the same purpose. i've always called it mechanics wire. we just use it to hang calipers up out of the way when doing suspension work or to drag wiring harnesses through places you can't get to easily. i think it's actually called mechanics wire though. you can use whatever as long as it bridges the gap and it's strong enough to hold. i'll have to see what gauge mechanics wire i've been using to do this so i can share on here.

07-07-2012, 03:48 PM	#36
makncheese Board Member Join Date: Mar 2009 Location: Southern CT, USA	Well, I discovered that it ain't the gap. Wired it up but it's something else. The a/c comes on, stays cold for about 10 minutes, and then stops. I can prolong the agony by turning off the a/c off before it shuts off, leave it off for 10 minutes, and then get another 10 minutes out of it.

08-23-2012, 08:28 AM	#39
ekanenh Newbie Join Date: Aug 2012	I'm going to try this on a 2000 v70 (FWD). What is the best way to access the compressor? (From the top there is clearly not enough room to work.) And what is the minimum parts that have to be removed to gain the access?

08-29-2012, 07:22 AM	#42
500dollar744ti still rides with MrDoug Join Date: Feb 2007 Location: Fairfax, VA	the last one i did the proper way, i could swear i had to remove the compressor, maybe i removed it unnecessarily, either way it started acting up again a year later and i just put the wire shim in and it's been fine for the last 6 years.

09-02-2012, 07:06 PM	#44
500dollar744ti still rides with MrDoug Join Date: Feb 2007 Location: Fairfax, VA	i tried that on one of my first attempts and they lasted for about a week then flew out one day at high rpm.

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