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Thread: My 1987 Two Door Crown Victoria AKA THE BROWN BLOB

  1. #4681
    The Brown Blob 87gtVIC's Avatar
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    Little video with a couple neat photos and a sound bit or two of the rumble at idle on a quite Saturday Morning...






    Attached Thumbnails Attached Thumbnails IMG_2081.jpg  
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  2. #4682
    The Brown Blob 87gtVIC's Avatar
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    This morning my dad and I installed all of the new ac components I have accumulated for the ac rebuild.

    List includes new hoses (3) new compressor, new receiver drier orifice tube and condenser.

    I flushed out the evaporator with a flush kit and after that was done we installed all of the new components as well as adding oil to the necessary ones and vacuumed out the system. It held near 30 inches of vacuum for over 30 minutes afterwards so we then started to add refrigerant.

    I added roughly 44 ounces of refrigerant. That coupled with the oil added brings the system up to 51 ounces total...That is if you take into account the oil...if not I would need to add more r 134a. Seems to be working okay. Vent temps just touch 40 degrees.

    I have to do some research to see if things are working correctly. I will say that the drier is getting VERY sweaty and so is one of the lines off of the compressor.


    See video for low and high pressure readings with compressor engaged and not engaged.



    I am just happy to be rid of the old leaky compressor and the ugly hoses.



    After:







    Compressor engaged:

    Attached Thumbnails Attached Thumbnails IMG_2166.jpg   IMG_2170.PNG   IMG_2163.jpg   IMG_2168.jpg   IMG_2156.jpg  

    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  3. #4683
    Road Warrior Kodachrome Wolf's Avatar
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    Given almost humidity around 50% and a warm day, sweaty lines aren’t going to be uncommon. That’s par for the course down here. If they were icing up, then I’d be concerned.

    Pressure looks fairly normal as well for running at max cool if that’s what you had it at.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
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  4. #4684
    The Brown Blob 87gtVIC's Avatar
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    Quote Originally Posted by Kodachrome Wolf View Post
    Given almost humidity around 50% and a warm day, sweaty lines aren’t going to be uncommon. That’s par for the course down here. If they were icing up, then I’d be concerned.

    Pressure looks fairly normal as well for running at max cool if that’s what you had it at.
    I was making mention of the sweaty lines as a positive sign of things working.

    Pressure readings were taken while temp selector was at max cool and fan on low.

    To be honest I was expecting better performance. I have yet to drive the car though.

    This was simple at idle for a couple of hours with a fan in front of the condenser to prevent the car from overheating. Temps were just a hair over 210.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  5. #4685
    Road Warrior Kodachrome Wolf's Avatar
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    Quote Originally Posted by 87gtVIC View Post
    I was making mention of the sweaty lines as a positive sign of things working.

    Pressure readings were taken while temp selector was at max cool and fan on low.

    To be honest I was expecting better performance. I have yet to drive the car though.

    This was simple at idle for a couple of hours with a fan in front of the condenser to prevent the car from overheating. Temps were just a hair over 210.
    Cool but not ice cold symptoms at idle?

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (210K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  6. #4686

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    The readings are slightly low but not too far off. The biggest issue is the mechanical fan not being able to pull enough air through the condensor at idle. I bet it would cool down when driven. Though Im not fully convinced the fan cant pull enough air. Maybe someone should do some math to figure how much air gets pulled through the stock fan shroud and compare it to say a later panther with an electric fan.


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  7. #4687
    Beater gonna beat sly's Avatar
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    The mechanical fan pulls more air when RPMS are over 2000 IIRC... The e-fan pulls more air at idle. I do know that my 93 is much better suited to the hot climate and crap traffic with the e-fan than the mechanical fan. The 88 I used to have, I did an e-fan conversion on as well and that one did better with the e-fan too (used cougar/contour/mystique v6 dual fan on that one). If the fan clutch is shot on a mechanical fan, it won't work for crap either. With the car up to temp, pop the hood and turn the engine off. If the fan freewheels, the clutch is shot. If it stops within a couple rotations, it's fine.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM (SOLD), 93 Vic, 2000 Crown Vic, 2003 Expedition
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  8. #4688

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    I had a suspicion that was the case. I prefer the stock fan over an e fan for simplicity but if I need to go to an e fan once I get my ac up and running I will.


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  9. #4689
    Beater gonna beat sly's Avatar
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    There's also the option of a small pusher fan out front controlled by the AC Clutch power. I'd run the fan relay off the power before the low pressure switch so the fan stays on and doesn't cycle with the compressor though.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM (SOLD), 93 Vic, 2000 Crown Vic, 2003 Expedition
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  10. #4690
    Member BigMerc96's Avatar
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    There is a reason Ford added an electric auxiliary fan to the Panthers in 1995 that comes on with the AC or if the engine begins overheating. It is the same reason a lot of newer trucks use them. At idle, there simply is not enough airflow from an engine driven fan to keep them cool while running the AC.
    -Steve

    2006 Audi A6 S-Line FWD ~132k miles, stock.
    1998 Mercury Grand Marquis LS HPP ~102k miles, slowly acquiring modifications.
    1997 Lincoln Town Car Cartier ~145k miles, Ported Plenum, Gutted Airbox, Mechanical Fan Delete, Contour E-fan Retrofit, Dual exhaust, Cats ran away, KYB Gas-A-Justs, P71 front sway bar, air ride reinstalled, Blinker Mod, Projector headlight retrofit, Caddy 4-note horn retrofit, Wood rim steering wheel, rustbelt diet plan..
    1996 Mercury Grand Marquis GS 117,485mi. R.I.P. 7/14/12

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    Quote Originally Posted by sly View Post
    There's also the option of a small pusher fan out front controlled by the AC Clutch power. I'd run the fan relay off the power before the low pressure switch so the fan stays on and doesn't cycle with the compressor though.
    That’s exactly how I have the wagon setup. Certainly helps.

    My Cars:
    -1987 Grand Marquis Colony Park LS (325K Miles) - April 2017 POTM Winner
    -1989 Sable LS Wagon (88,710 Miles) - Sold
    -1997 Grand Marquis LS (210K Miles) - The Daily Workhorse & March 2015 + January 2019 POTM Winner

  12. #4692

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    Hmm thats not a bad idea. Ill look into that, thanks for the suggestion.


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  13. #4693
    The Brown Blob 87gtVIC's Avatar
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    Took the car on a 5 hour cruise. Air conditioning seemed to work flawlessly. It made me cold despite vent temps only dipping to ~50 degrees at max cold. Don't want to fret too much on the readings when it is making me cold so I will call it a win. I even had to turn it down at times.



    Quick video with an idling walk around of the car.



    When I got back from my drive I swapped out a lower radiator mount for a proper police spec one as I am running the larger police radiator as well as changed out my hood hinges for paint matched ones I painted over the winter. Just makes it look a bit cleaner having nice and shiny hood hinges that match the cars exterior finish.
    Attached Thumbnails Attached Thumbnails IMG_2173.jpg  
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  14. #4694
    I'm an air-conditioned gypsy gadget73's Avatar
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    charge amount does not include oil.

    if the compressor isn't cycling its probably about right though. I've taken to charging and pressure testing with a dime stuck between the throttle screw and the blade. That puts it around 1800 rpm or so, and you get a better idea of what its going to do at highway speed. I also run the blower at full go. You also want the drier to get cold enough to condense, otherwise there isn't enough in the system to fully flood the evaporator.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

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  15. #4695
    The Brown Blob 87gtVIC's Avatar
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    Quote Originally Posted by gadget73 View Post
    charge amount does not include oil.

    if the compressor isn't cycling its probably about right though. I've taken to charging and pressure testing with a dime stuck between the throttle screw and the blade. That puts it around 1800 rpm or so, and you get a better idea of what its going to do at highway speed. I also run the blower at full go. You also want the drier to get cold enough to condense, otherwise there isn't enough in the system to fully flood the evaporator.

    If thatís the case then there is only 45ish ounces of Freon in the system. Compressor is not cycling a lot. Can be viewed in the video. May add more if it seems necessary
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  16. #4696
    The Brown Blob 87gtVIC's Avatar
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    I have decided to hook up the gauges tomorrow and reference my low and high pressure readings to a chart similar to the one pictured:



    I will then decide if more freon will be required. Mathematically I do not have the proper amount at this point in time. I am a couple ounces shy of a fully charged system. I have one 12 oz can left at my disposal to see what I can accomplish.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  17. #4697
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    I need to check the fill of my 93. I saved that chart to make sure. It's gonna be 104F most of this week down here.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
    rides: 88 MGM (SOLD), 93 Vic, 2000 Crown Vic, 2003 Expedition
    Quote Originally Posted by gadget73
    ... and it should all work like magic and unicorns and stuff.
    Quote Originally Posted by dmccaig
    Overhead, some poor bastards are flying in airplanes.

  18. #4698
    I'm an air-conditioned gypsy gadget73's Avatar
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    Ballpark for high side pressure is 2.5 - 3x degrees Freedom so 90F can be up to about 270 psi. Monitor the vent temps though, stop adding when it stops getting colder. If its over-charged the temperatures will go up along with the pressure. I like to do this with it above idle speed just because thats what it will see while driving, especially if you don't have an electric fan. E-fans help a lot at idle but the compressor speed does affect pressure too. I'm running underdrive pullies so it really plays with the pump speed. Keep in mind the high side pressure is very dependent on airflow, so its going to be lower when actually moving. The lower the high side is, the lower the low side is, and the lower the low side, the colder the vent temps will be, provided the pump isn't cycling.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

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    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

  19. #4699
    The Brown Blob 87gtVIC's Avatar
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    Id say everything is as good as it is going to get given that information.

    I will say thought that both schrader valves are leaking according to my leak detector. High side is just a port around the hole deal to make it adapt to r134a low side is a valve ontop of valve. I took the adapter off the low side and still detects a leak. Ill see how long this holds and once it all seeps out I will replace the schrader valves. I suspect that both were damaged by overtightening the manifold quick connects onto the valves. I am pissed. I tried exercising the valves to hopefully seat better but noluck.
    ~David~

    My 1987 Crown Victoria Coupe: The Brown Blob
    My 2004 Mercedes Benz E320:The Benz

    Quote Originally Posted by DerekTheGreat View Post
    But, that's just coming from me, this site's biggest pessimist. Best of luck

  20. #4700
    I'm an air-conditioned gypsy gadget73's Avatar
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    over about 85F I wouldn't expect the compressor to cycle if the blower is on full go. If yours is, it probably wants a little more juice. It does usually want a couple minutes of run time before things settle though. You can see that on the gauges if you turn it on from sitting.


    Are yours the fittings that have the push rod that just pokes at the valve in the R12 port? Those seem extra prone to leaking. I like the kind where you pull the stem out of the R12 port and the 134a fitting has it's own.

    86 Lincoln Town Car (Galactica).
    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks, Holley SystemMax1 lower intake, SilverFox AOD valve body,

    1984 Lincoln Continental TurboDiesel - rolls coal

    Quote Originally Posted by phayzer5 View Post
    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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