Quote:
Originally Posted by Desert Panther
OK, i'd never heard of this tool for changing Schrader valves without losing the refrigerant. So I looked it up on Youtube, and wow! Color me surprised! Learn something new every day I suppose. Thanks for that. 
Now if you don't mind, what are your objections to using stop-leak in an A/C system? Is it something you are vehemently opposed to? Or just something that you have had bad experience with? Or you would just rather change the leaking part at any expense rather than using a can of sealer? With some M-B evap cores taking entire days to access (W140), the labor costs and associated parts costs can easily be in the thousands. Versus a can of sealant for a few bucks that "may" solve the problem? Also, there are different grades of A/C stop-leak, just like there are different quality grades of motor oil, tires, etc. I'd expect the top shelf stuff to be effective at some level. Your thoughts and opinions are respected.  |
There are just so many reports of stop leak or anything not originally in tended to be there causing problems.. that hole in the TXvalve is pretty small .. what is to keep it from sealing that up ?
One big problem is that if a leak is on the up side of a curve.. then the likely hood of the sealant getting To it are very slight.. and what is the way in which it ' seals' that hole ?
Just better standard practice to FiX any leaks.. which is why the nitrogen pressure method AND four oz of R22 are used.. they will find a leak in the evaporator ALSO.. and you will never see that leak using one of the leak spotters....
If that stuff does not fix the leak... then you have it in the system if you want to start fresh... do you really want sealer IN the compressor ?
I am going by my reading every where I could find opinions.. hvac and automotive people who do this stuff all the time.. but not trying to sell leak stop...
ACKits.com or Airconditioner. com..
and the MB AC paper manual for the 123 which I have...
AND there is a difference between you using it on your car.. which I have no problem with.. it is a free country.. but I do have a problem with non standard advice going to someone else who may not have done enough reading or have mechanical experience to make a judicial judgement of the recommendations..
Note the AC thread in my signature.. the moderator VStech and I and lots of other people have been building that for years...