Ac O Ring Leak

The problem here is that rubber degrades over time and with exposure to heat and moisture. Leaks on ac systems especially ones that take days to loose the charge like you describe are 9 times out of 10 o-ring drying out and shrinking related.

How To Replace An Ac Line Yourmechanic Advice

Those O-Rings HNBR are special and need the exact same size or it will leak.

Ac o ring leak. AC Compressor Rear O Ring Replacement. In addition R134 working pressures are higher than R12. Leaks on ac systems especially ones that take days to loose the charge like you describe are 9 times out of 10 o-ring drying out and shrinking related.

But o-rings rarely develop a leak with the exception of the ones on the AC connector since that is held by a bolt that can loosen up over time. Make sure and check for residue up front. Another common O-Ring failure is abrasion typically found in dynamic seals subject to reciprocating oscillating or rotary motion.

After the 134a leaked out the first time I filled it with 134a and dye and found what looked to be a big leak at the connection to the condenser on the hose from the compressor. And the current crop of stop leak seal swellers that contain leak detecting dye charges are safe and easy to use if used properly. Some people say it works wonders while other say to stay away from Stop Leak.

Is this just an o ring or gasket or will i have to replace more. Finally did a dye test this morning and found the leak was coming from the top side of the compressor where the hard line goes to. After rebuilding the AC system and converting to R134 I developed a leak at the high side of the A-6 compressor O ring connection.

I Googled Is AC Stop Leak Bad and I got many respones. The schrader valves at the charging ports are not the final seal. The evaporator core is an expensive job so you dont want to do it until you confirm it is leaking.

Some AC stop leak manufacturers claim their products will seal leaks in rubber hose connections and O-ring seals or a combination metal rubber gasket. I decided to examine these connections and devise a leak proof solution. You have rubber O-rings grommets lines and more.

Part numbers would help as well. Its developed an AC leak that Im having the darndest time getting corrected. The sliding contact faces of the O-ring have a grazed surface with excessive wear there may be deeper lacerations and breaking in places.

I read that instead of vacuum use compressed air and it is easy to listen for air noise. The car i worked main leak was at the evaporator and then at the fill port O-Ring. Ive done a few charges to see how bad the leak was and its holding a can of 134a for about a week and a half.

I replaced the ones on the compressor at the same time to be safe but they were not the ones that leaked. However since rubber components flex and the sealer forms a rigid patch any movement will break the seal and the system will leak again. The characteristics of such a leak are continuous ejection of coolant from the radiator cap overflow tube and white smoke while running or heavy white smoke during startup usually accompanied by bogging during the first few seconds of runtime until the coolant is out of the combustion chamber Usually the car will run well otherwise but consume coolant.

Common in dynamic applications abrasion occurs from repetitive contact between the O-ring surface and the housing resulting in excessive friction between the two. In general abrasion of O-Ring seals has one or more of these causes. 6 203 MB946605 O RING.

The rear O rings of the GM A-6 compressor are prone to leakage. While much of your air conditioning system is made of metal including the high pressure lines rubber is still used throughout. They will leak there is an o ring in the plastic cap that seals of the valve.

Since the compressor shaft seal is a rotating component AC stop leak products will not work to stop a. The compressor lines dont really need torqued to any certain spec. There are two causes of AC system leaks age and moisture.

Improper finish of the surface in dynamic contact with the O-Ring. When I had leaking o-rings it was the ones where the hard lines connected to the condensor out in front of the radiator. 6 294 MR117263 O RING.

I bought an o-ring kit and initially just replaced the o-ring at that connection. 2004 WRX FP Green. I ordered another set of o-rings from mopar store since thesame parts used for eagle talon etc.

Improper lubrication or surface finish of the metalwork can exacerbate the risk as can ingress of abrasive contaminants into the sealing. Like this good review. May 24 2011 7.

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