Originally posted by F22Chris
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Replacing AC compressor
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Originally posted by zedjr10 View PostIt is also technically illegal to drive 56 in a 55 and cross the street in an unmarked crosswalk.
I have been able to charge a repaired system by rigging a T and shut off valve into the charge hose. I have a pump to pull a vacuum on the system before introducing the refrigerant, close the valve to isolate the system, make sure it holds vacuum, then refrigerant can be introduced.Last edited by Fleetw00d; 04-14-2018, 12:34 AM.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Well when you put vacuum on the system to verify your fixes, all the oil & moisture will be sucked out of the system anyway.
With r12 to r134 conversions, you’re going to use the exact same amount(not type) of oil, just different amounts of actual refrigerant. If it comes pre loaded with r12 compatible oil, you’re going to want that out of the system regardless as it will not mix with the 134. If it does have the r12 oil and you put r134 refrigerant in the system, you’re going to have to replace everything all over again because it doesn’t mix and will ruin the entire system. When they mix, it turns into a brown tar-like goop that clogs absolutely everything.
Older r12 compatible o-rings will also deteriorate over time with 134. The expansion valve is behind the dash attached to the evaporator. Replacing that will be the most time consuming part of the job.
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Originally posted by F22Chris View PostWell when you put vacuum on the system to verify your fixes, all the oil & moisture will be sucked out of the system anyway.
With r12 to r134 conversions, you’re going to use the exact same amount(not type) of oil, just different amounts of actual refrigerant. If it comes pre loaded with r12 compatible oil, you’re going to want that out of the system regardless as it will not mix with the 134. If it does have the r12 oil and you put r134 refrigerant in the system, you’re going to have to replace everything all over again because it doesn’t mix and will ruin the entire system. When they mix, it turns into a brown tar-like goop that clogs absolutely everything.
Older r12 compatible o-rings will also deteriorate over time with 134. The expansion valve is behind the dash attached to the evaporator. Replacing that will be the most time consuming part of the job.
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you can rent the vacuum pumps at autozone. I've still got R12 on my 93 EX coupe since it uses the Hadsys style compressor which was very difficult to find. Replaced mine back in 2013 when the car had about 225k on the chassis.
A can of R12 is about 25 on craigslist, so its still accessible. I'd keep running it. Once its fixed properly, it'll last another 5-7 years with a new compressor. Nothing should leak out in that time anyways.
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93' EX Coupe H22A w/ P2T4 Sir 5spd 191whp 155 wtq
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Originally posted by Losiracer2 View Postyou can rent the vacuum pumps at autozone. I've still got R12 on my 93 EX coupe since it uses the Hadsys style compressor which was very difficult to find. Replaced mine back in 2013 when the car had about 225k on the chassis.
A can of R12 is about 25 on craigslist, so its still accessible. I'd keep running it. Once its fixed properly, it'll last another 5-7 years with a new compressor. Nothing should leak out in that time anyways.
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Originally posted by fleetw00d View PostI just cost me $142 for an evacuate and recharge (with about 45 minutes in between so I could go home and replace the pressure switch). I believe it is technically illegal to deliberately release the Freon to the atmosphere, so the system should be evacuated prior to changing the compressor (unless it has all leaked out already).My '91 LX build. Bought September 2017. Sold June 2020.
http://www.cb7tuner.com/vbb/showthre...r /> t=209871
Current mileage: 399450 5/18/2020
My '92 LX build. Bought Novemeber 2019. http://www.cb7tuner.com/vbb/showthre...91#post3293791
Current mileage: 422679 11/21/19
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Pressure has to be released to replace the switch (if you don't, you'll release the pressure and lose the Freon when you remove the switch). I believe I used a used OEM Honda switch that I had in my parts collection.90 LX 4dr 5 spd 396,014 (sold 1/1/2022) - MRT: http://www.cb7tuner.com/vbb/showthread.php?t=201450
08 Element LX FWD AT 229,000 - MRT: fleetw00d : 2008 Honda Element LX - CB7Tuner Forums
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Ok that's what I figured. Ty for the info.My '91 LX build. Bought September 2017. Sold June 2020.
http://www.cb7tuner.com/vbb/showthre...r /> t=209871
Current mileage: 399450 5/18/2020
My '92 LX build. Bought Novemeber 2019. http://www.cb7tuner.com/vbb/showthre...91#post3293791
Current mileage: 422679 11/21/19
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