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#1066910 - 06/19/20 01:07 AM Re: charging new a/c system [Re: Krazyjay23]  
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86ttop Offline
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Originally Posted by Krazyjay23
actually on compressor it was 6oz i have a picture if knew how to add a pic ill show you


I know what was on the compressor, the updated correct amount of oil is 8 oz total in the system!


Leo Paugh
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#1066931 - 06/21/20 01:28 AM Re: charging new a/c system [Re: 86ttop]  
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Krazyjay23 Offline
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Brooklyn NY
ok sounds good. i thought you was saying you didnt remember what was on the compressor thats why i said that i understand its all different now . i got my new evaporator today and that was my problem everything fits now and put the heater core in while i was there again . hopefully i can get this charged up now .

#1066938 - 06/22/20 01:05 AM Re: charging new a/c system [Re: Krazyjay23]  
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86ttop Offline
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86ttop  Offline
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thumbs


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1066955 - 06/22/20 08:51 PM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
so again im having problems the condenser i got is leaking around inlet tube at the condenser so just had a nasty call with the parts place and they going to send me a replacement so hopefully i get this done before winter .

#1066958 - 06/22/20 09:29 PM Re: charging new a/c system [Re: Krazyjay23]  
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Hunter79764 Offline
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Grand Prairie, Tx
No fun, but hopefully the new one will work alright. And hopefully you caught it on the leak check instead of after you put refrigerant in it.


Shawn

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1067163 - 07/05/20 01:18 AM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
hey so i got the ac mostly working but im missing something lol. i currently have my fan on a switch so i turn that on manually for the time being. but i need something to raise the rpm when ac is on but i forget what its called i dont have the stock carb but if i remember correctly the old one had something on the drivers side of the carb for it so if anyone knows what is is please let me know i have a edelbrock carb and intake now

#1067173 - 07/06/20 12:59 AM Re: charging new a/c system [Re: Krazyjay23]  
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86ttop Offline
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Do you have the computer still hooked up to the engine?? You'll need the original carb to complete that circuit if so!!


Leo Paugh
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POW*MIA
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#1067177 - 07/06/20 03:48 AM Re: charging new a/c system [Re: Krazyjay23]  
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mmc427ss Online content
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The Qjet had a idle stop solenoid attached to the carb that would increase idle speed when the A/C compressor clutch was energized. The solenoid was controlled by the fast idle relay, the fast idle relay was energized by either the ECM for one specific reason, to increase idle speed at deceleration, an emissions thing. The second way the solenoid was energized was power came from the A/C control switch at the dash. Power would go to the low pressure cycling switch that turns the compressor coil on and off, and then to the normally closed contacts in the idle speed relay. The low pressure switch was what turned the solenoid on or off.
That's how GM wired the original A/C.

You don't need the idle speed relay. A solenoid can be simply turn on when the clutch is energized by splicing into the wire at the low pressure cycling switch's output to the clutch. I run my solenoid on a Qjet that way. But even with a new solenoid I find sometimes the solenoid isn't strong enough to push the throttle against the return spring for the carb. A tap on the gas pedal will allow the solenoid to fully extend to increase the idle speed a few hundred rpm.

I'm sure with a little ingenuity a bracket and solenoid could be added to the Edel carb. Here's what Edel sells for their square bore carbs, kinda pricey but could be duplicated for much less.
https://www.edelbrock.com/idle-compensator-kit-for-all-edelbrock-square-bore-carburetors-8059.html
Bob

#1067205 - 07/07/20 11:11 PM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
86ttop no i dont have the computer or original carb hooked up i do have them in my basement lol. and yea mmc427ss i seen that edlebrock one but that price turned me off . i was thinking of reusing the old one and just making a bracket i have to see what i can do if i can make one with a piece of angle iron

#1067207 - 07/08/20 04:46 AM Re: charging new a/c system [Re: Krazyjay23]  
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mmc427ss Online content
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mmc427ss  Online Content
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Pottstown, Pa
Pretty simple bracket to imitate, make a heavy weight paper template first, hack up a piece of steel angle, a little paint, biggest problem is the large hole for the solenoid. I believe the original solenoid and bracket are one piece, spot welded together.

Fleebay has a few solenoids that may work for you.
Bob

#1067300 - 07/14/20 04:09 PM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
thanks bob i will definitely look into it price everything out see if its worth making or buying. do you guys know if there is a better blower motor i can get my fan doesnt seam to blow as good as i would like ac is decent not super cold but wasnt expecting it to be lol but i am going to buy new blower and relay thingy see if it helps. and i was also wondering with the ac on my temp went to 220 and before i had ac it would stay between the first to dots and the guage favoring the 1st one do you think i need better fans or get a 3rd fan on condenser pushing? thank you

#1067301 - 07/14/20 05:49 PM Re: charging new a/c system [Re: Krazyjay23]  
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Hunter79764 Offline
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Grand Prairie, Tx
What fans do you have? Sounds like you need more airflow, I'd suggest upgrading existing before adding an additional. Pusher fans just don't seem to work as well in automotive setups.


Shawn

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1067339 - 07/17/20 03:58 AM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
i bought a fan with radiator from amazon its cooling care 2 12in fans with the shroud. the radiator was too wide so i bought a regular replacement radiator and added the fans to that. is there a fan setup that's recommended also my thermostat is 190° i think should i get a 180

#1067342 - 07/17/20 01:47 PM Re: charging new a/c system [Re: Krazyjay23]  
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Hunter79764 Offline
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Grand Prairie, Tx
An engine with a proper cooling system will run right around the thermostat set point. When you beat on it, the temperature may rise a certain amount. i.e., on a dragstrip pass, you might gain 25° on your coolant for a certain setup. If you start at 190, you will finish the run at 215°. If you start at 160, you will finish at 185°. On a modern engine with good coolant, 215° isn't a problem at all. So I wouldn't worry about changing thermostats to keep it running cooler. If you are hitting 220 just cruising around, a 160° thermostat wont make a lick of difference, it will be wide open just like your 180 stat is now. What temperature are your fans set to come on? If that is too high, then your thermostat will only partially control temps, the other half is by the fan setpoint. If your fans are on a switch and on before you have any cooling issues, then you either don't have enough water flow (hard to diagnose, hard to fix without replacing everything), or you don't have enough air flow (also hard to diagnose, but easy to fix with a proven fan).

If you are on a budget, go to a wrecking yard and look for a fan that fits a 95 Thunderbird LX (which is the "Mark VIII Fan"), a Dodge Intrepid (the "Ramchargers Fan"), or an LT1 or LS1 Camaro/Firebird. Hopefully the guy at the yard can help you with interchange, especially on the Ford fan since it was used on a lot of cars without a ton of consistency. When you are there, get as much of the harness as you can to go with it, since you will need the connectors at minimum, and sometimes you can get a nice standalone harness with relays that just needs power, ground, and trigger wires.

I'm not a big proponent of throwing money at a problem, but I any of those options will get you a fan that pulls plenty of airflow to cool 500 hp with AC cranking on high, and if they aren't enough, you have other problems. Other guys might be able to point you towards better troubleshooting, but "too much fan" is rarely a problem (although you can sometimes outrun the factory alternator with something big enough).

If you are still fairly stock and don't have an upgraded alternator, take measurements of your radiator core area with you, along with some pictures of your radiator, and go walk the yards with a tape measure and find something with a V6 or better than has a shroud that should fit. Later model Cadillac FWD V8's have decent sized fans, I'm pretty sure that's what I'm running on my wife's suburban. Plenty of others have reasonable fans that will be more than adequate for a stock level motor and will be lower amp draw. Early GM FWD stuff often has a nice standalone relay harness that mounts to the firewall somewhere. The plugs from an early fan might fit a later fan in a larger application as well, so you might find a harness from a '91 Buick and the fans from a 2002 Cadillac and end up with a pretty decent setup for $50 or so.

And of course the other option is to run a mechanical fan if you still have your old one. If that works, you know you need more airflow and can decide how to do it best, but I wouldn't go buy one to test things out, I'd rather buy an electric that might be the permanent fix.


Shawn

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1067349 - 07/18/20 09:25 PM Re: charging new a/c system [Re: Krazyjay23]  
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Krazyjay23 Offline
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Brooklyn NY
i think my fans might not be strong enough then i have the fan on a switch and i have it running when the car is on . the tekp only went up the one day so far and there shouldnt be a coolant flow problem unless its in the block everything to do with the ac/heat was replaced all hoses gaskets heater core radiator. im going to my brother's house friday mayby ill swing by the yards by him see if i can find something. thank you

#1067360 - 07/20/20 01:53 PM Re: charging new a/c system [Re: Krazyjay23]  
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Hunter79764 Offline
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Grand Prairie, Tx
Might be possible you had an air bubble if it was only once. But keep an eye on it, in cruising conditions you shouldn't see it rise much over your t-stat temp. If it creeps up again in normal driving, I'd start with the fans.


Shawn

'85 MC with budget 5.3L swap, TH350 with stock 2.14 rear end
It ain't much off the line, but it's nice on the highway
#1067392 - 07/23/20 10:56 AM Re: charging new a/c system [Re: Krazyjay23]  
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Brooklyn NY
ok thank you will do

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