AC failure
AC failure
I am on my 4th compressor since my bpt swap in june 2003. The first was my original. I have a 94 mixed with bpt ecu and engine. All ac wires should be from the mx3 and not the bpt.
first and second stopped working. the 3rd had the purge valve leak. and the 4th is leaking from a pipe near the compressor or from the compressor. I cant tell yet and I tried a uv light.
i attached one of those 134a refill with gauge attached devices and it was around 45 but moved up to 100, without filling it.
What is wrong, would a leak somehow cause it to keep building up pressure? Could it be something with my custom setup that is wrong?
first and second stopped working. the 3rd had the purge valve leak. and the 4th is leaking from a pipe near the compressor or from the compressor. I cant tell yet and I tried a uv light.
i attached one of those 134a refill with gauge attached devices and it was around 45 but moved up to 100, without filling it.
What is wrong, would a leak somehow cause it to keep building up pressure? Could it be something with my custom setup that is wrong?
was it r134a stock or did you just put r134a into a r12 system?
94 Mx-3 Precidia
1.8L 4Cyl DOHC newGen BP (used to be B6DE) ATX
http://www.mx-3.com/phpbb2/viewtopic.php?t=54032
http://www.cardomain.com/id/ariesdude
1.8L 4Cyl DOHC newGen BP (used to be B6DE) ATX
http://www.mx-3.com/phpbb2/viewtopic.php?t=54032
http://www.cardomain.com/id/ariesdude
- MechaManZero
- Regular Member
- Posts: 690
- Joined: March 20th, 2006, 7:36 pm
That shouldn't matter Ariesdude. I changed over many r12 systems. LOL I don't believe in AC.
Çlark
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
If you leave the old oil in the system - it doesnt mix with r134a - so it stays liquid (incompressible). Imagine when the compressor tries to compress that liquid and squeeze it thru the old lines.... it will break all kinds of things...
94 Mx-3 Precidia
1.8L 4Cyl DOHC newGen BP (used to be B6DE) ATX
http://www.mx-3.com/phpbb2/viewtopic.php?t=54032
http://www.cardomain.com/id/ariesdude
1.8L 4Cyl DOHC newGen BP (used to be B6DE) ATX
http://www.mx-3.com/phpbb2/viewtopic.php?t=54032
http://www.cardomain.com/id/ariesdude
- Philthy
- Regular Member
- Posts: 150
- Joined: December 9th, 2005, 1:09 pm
- Location: Sacramento, California
- Contact:
AC oil doesn't compress period. The oil in an ac system is a small volume in comparison to refrigerant. One tell tale sign of too much oil is a noisy or knocking compressor. To much oil results in compressor damage, never saw it blow out hoses. In fact it would inhibit compressor efficiency, reducing pressure in the system (not the head). Poor condensor operation can increase high side pressures as well as expansion valve or orifice tube restrictions. Send me your high and low pressures, note ambient temp also (should do it on a hot day for more accurate diagnosis). Also you should be flushing the system and evacuating it with repairs, as well as installing a new drier when the system is opened up.
Last edited by Philthy on July 21st, 2006, 11:24 pm, edited 1 time in total.
92 MX-3 GS, KL-ZE, OBX headers, 2-1/2" exhaust, XL Performance muffler, AASCO Aluminum flywheel,Pheno spacers,APEXi Airflow computer,Eibach springs,Tockico struts, Toyo RA1 205/50ZR15s, B&M short shifter. MS control arm Bushings, SS clutch line, SS brake hoses
- MechaManZero
- Regular Member
- Posts: 690
- Joined: March 20th, 2006, 7:36 pm
After the 4th compressor all of that should be out by now lol.ariesdude wrote:If you leave the old oil in the system - it doesnt mix with r134a - so it stays liquid (incompressible). Imagine when the compressor tries to compress that liquid and squeeze it thru the old lines.... it will break all kinds of things...
And that won't matter anyways unless you had more oil than you were supposed to in the system cause all AC systems need oil in them unless it comes mixed in the can.
Çlark
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
-
- Regular Member
- Posts: 457
- Joined: March 13th, 2005, 11:58 pm
- Location: niagara falls, ontario, canada
pressure goes up with lower rpm/rough idle and then lowers as rpm increases to a smooth idle
after turning off car the pressure goes up a lot
could it be too hot?
should the cooling fan and the condenser fan always be on when the ac is running?
thanks
must have ac as my wife and baby would appreciate it. I hate to drive my wife's accord.
after turning off car the pressure goes up a lot
could it be too hot?
should the cooling fan and the condenser fan always be on when the ac is running?
thanks
must have ac as my wife and baby would appreciate it. I hate to drive my wife's accord.
Did you do anything to shield it from the heat from the turbo that is literally right above it?nolig2278 wrote:pressure goes up with lower rpm/rough idle and then lowers as rpm increases to a smooth idle
after turning off car the pressure goes up a lot
could it be too hot?
should the cooling fan and the condenser fan always be on when the ac is running?
thanks
must have ac as my wife and baby would appreciate it. I hate to drive my wife's accord.
-torp.
I don't own a Mazda.
I don't own a Mazda.
- MechaManZero
- Regular Member
- Posts: 690
- Joined: March 20th, 2006, 7:36 pm
the ac on the stock turbo mazda b series engine have the same ac setups, heat should not be a problem
Çlark
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
95 Mazda MX3 4 Banger
Currently: H&R Lowering springs, BPT from a GTR, 18.5x6x3.5 same side inlet and outlet intercooler, Centerforce Dual Friction clutch
For BPT Frorums - http://www.aokforums.com/mazdaengines/
- Philthy
- Regular Member
- Posts: 150
- Joined: December 9th, 2005, 1:09 pm
- Location: Sacramento, California
- Contact:
doesn't sound like you have a gauge set to read pressures. Have your compressors been good quality or did you get them at chiefs/kragen/pep boys. If you havn't bought four and they just exchange them probably poor quality. If you bought four then youv'e spent a lot more money than it would have cost to have a proffesional diagnose the system. In sacramento a cheap shop would charge 65$ for a basic check out. And a high end shop 200$ for an initial checkout. If you don't have guages why waste any more time? At least have competant tech diagnose it.How hot is it in florida right now? We set a record, 10 days of triple digits. Been super busy fixing cooked cars!
92 MX-3 GS, KL-ZE, OBX headers, 2-1/2" exhaust, XL Performance muffler, AASCO Aluminum flywheel,Pheno spacers,APEXi Airflow computer,Eibach springs,Tockico struts, Toyo RA1 205/50ZR15s, B&M short shifter. MS control arm Bushings, SS clutch line, SS brake hoses