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| Fiero Air Conditioning Parts List (Page 2/4) |
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fierosound
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JUN 18, 08:08 PM
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Questions....
The Service Manuals seem to be out to lunch on their torque specs...
Anyone else notice this?
The inline fittings on the high pressure side lines are generally 30 ft/lbs, the low pressure side line fittings are 17 ft/lbs.
I really worry with the 30 ft/lb torque on the high side. You keep worrying you will strip the nuts.
Then when you take it apart, the end of the tube has slightly deformed and it can be very problematic separating it.
The Manual then has only 3 ft/lbs of torque applied to the hose manifold connection to the compressor.
These seem to be the same in all the manuals from 84 to 88 no matter what the compressor.
I could see this may be adequate for the compressors with O-rings.
But with the steel Sealing Washers it has to be under-torqued??
I checked around and didn't see any other car with such a low torque spec for that manifold connection.
I'm wondering if that's just a recycled typo in the manuals?
Fours Seasons recommends 25 ft/lbs here
https://www.4s.com/media/37...-sealing-washers.pdf[This message has been edited by fierosound (edited 07-25-2022).]
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1MohrFiero
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JUN 20, 07:07 AM
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Does anyone have a good source for new condensers and evaporators? With all the Fiero's suffering from Black Death now, I'm sure they would be helpful. ------------------
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fierosound
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JUN 20, 08:03 AM
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| quote | Originally posted by 1MohrFiero:
Does anyone have a good source for new condensers and evaporators? With all the Fiero's suffering from Black Death now, I'm sure they would be helpful.
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I just installed a brand new, made in USA condenser in my Indy. It fit beautifully - OEM quality.
I bought it off eBay in 2014 (yup - been sitting in the box until this weekend)
The info on my paperwork is:
(website not working www.amcmfg.com )
John W. Paschal
AMC Imports
1040 4th Street
Graham
TX 76450-3208
Phone: (940) 549-0288
3 different companies selling condensers on eBay
Prices range from $270 to $285
http://www.ebay.com/sch/i.h...o+condenser&_sacat=0
Evaporators are harder to come by.
I think I got a used one for my Indy...
------------------
My World of Wheels Winners (Click on links below)
3.4L Supercharged 87 GT and Super Duty 4 Indy #163[This message has been edited by fierosound (edited 07-04-2022).]
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sardonyx247
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JUN 22, 04:29 AM
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To add, if you don't open the lines, (where the o-rings go) you do not have to change them for a 134a conversion, that was the old school of thought, just to save everyone ALOT of hassle. This comes from the EPA themselves.
The difference between the fixed and variable orifice tubes takes ALOT of reading from the designer, to summarize, the variable helps to draw liquid instead of gas when you are supposed to draw liquid. (Both will work in a Fiero)
Also for the V5, the Compressor Control Valve, (The most common thing to go out on a V5 BTW) comes in different ratings, (the color dot on the end) one side of the scale is for R-12 the other side of the scale is for 134a, get the right one for what you are using.
And the factory low pressure switch is still available. Santech MT0207 at autozone, AND has a screw in it that adjusts the pressure.
Or also we have a STACK of them we pulled off Fieros, probably like 50+ 
I deal alot with A/C here is Vegas as it is just stupid hot here.
Edit to add: Fierosound...you really need A/C in Canada? Really?
------------------
"DRIVE IT LIKE A FIERO"
'84 Fiero, engine to be determined '87 Duke (Sold)
'87 Quad 4 H.O.
'87Blue GT 3.4L Swap Completed!!!!!!!! Boosted!!!!!!!
^^^^ Now in the Construction Zone^^^^
Las Vegas Fiero Club Parts/Sales/Service/Club
Fiero Road Club Of Northern Nevada
Now on my 11th Fiero[This message has been edited by sardonyx247 (edited 06-22-2016).]
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fierosound
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JUN 22, 10:36 AM
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| quote | Originally posted by sardonyx247:
Edit to add: Fierosound...you really need A/C in Canada? Really?
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It's only June, but I may need it later... 
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fierobug
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JUN 24, 09:55 AM
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Thanks for the parts list reminders. Second rebuild of ac - reman compressor leaking. Orifice clogged. Bought a new one this time. Question is - "experts" recommend new muffler hose - not to be flushed. Can't afford it. Many have been successful I assume flushing it.. Will flush everything else best I can. Any suggestions for cleaning greatly appreciated. Cleaned using Flush bottle. Not all bad got a couple years out of 1st conversion. Learn as you go DUH! Don't want to do this AGAIN THOUGH!. ------------------
FIEROBUG!!!!!!!!!!
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fierosound
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AUG 18, 10:51 PM
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theogre
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JUL 01, 11:24 PM
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Good list.
87-88 Dukes have V5 compressor and may need different hose seals at that point. Check #'s before ordering. (check anyway for change/discontinued #.)
Note:
High Side R134 have several types to convert R12.
Many are just adapters using old R12 valve core.
Some others have a new core.
Any using old R12 type core uses part of test port as a seat to seal them. Often that section gets damage and leaks.
Adapters w/ new valve stops the leaks here.
Many can install w/o removing old core but check.
Strait ones new core tip reaches old core.
Angle ones compress the old core all the time during/after install. Might leak some to install.
Alternately can use a metal high side R12 cap and permanent seal then use a saddle R134 high side but is more work/cost. Can't find a pict for best ones for cars but work sim to ice maker taps for plumbing. (Found other but not w/ right part for cars.)------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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RPYRAZOO
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JUL 05, 07:18 PM
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With a complete change over to 134a is a new orifice tube necessary and which one of the 3 is suitable. Also, where can I find one? '87 V-6 stock.
Thanks again,
R
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RWDPLZ
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JUL 05, 09:36 PM
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A new one is a good idea, the passage inside is microscopic, and the screens act as a filter keep junk from being sucked through the system and into the compressor. The standard ones are $2.00 and almost every parts store will have them. I had to special order the other ones previously.
The more expensive $30 variable ones are made to improve cooling when the car is stopped, like in traffic or just idling. It's meant to more closely mimic the operation of the thermal expansion valve used by most non-GM systems. Standard VS Variable though, nobody seems to agree if it's worth it or not. One thing to consider is it introduces moving parts to what previously was dead simple, introducing a potential failure point.
If you can get good performance from the standard one, I wouldn't bother upgrading. If the standard orifice tube doesn't perform well at idle or in traffic, it may be worth trying to see if conditions improve.
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