Engine Builders talk.
11-05-2014, 01:47 PM
#4991
Get it flushed with nitrogen first. I wouldn't want any trash in the lines contaminating the new components. Then change out the parts, have it vacuumed down and finally filled. Make sure you have the appropriate type & amount of oil for the compressor. If it doesnt already have oil in it youll have to bench bleed it. And go ahead & change the o - rings at every connection while you have it apart. Follow all the steps and your a/c will be good for the next 20 years.
So take it to a shop and just ask to have it flushed with nitrogen? After they do that start my swap and change out all the a/c parts and when im finished have it vacuumed down and recharged?
11-05-2014, 02:21 PM
#4993
Senior Member
The new compressor does have oil in it already. I have new o rings for all the connections.
So take it to a shop and just ask to have it flushed with nitrogen? After they do that start my swap and change out all the a/c parts and when im finished have it vacuumed down and recharged?
11-05-2014, 03:03 PM
#4996
That's what I would do. And as [MENTION=76842]Carcrazygts2[/MENTION] stated check to see if the compressor has the correct oil in it. As far as the denatured alcohol, it would break down and remove any oil residue and contaminants from the system. Although I'm not sure how you would introduce it into the system other than breaking a line loose and pumping it through using a hand pump? Please elaborate carcrazy. With the commercial a/c ' s I work on, I purge them with nitrogen because it has no moisture in it and it doesn't affect the dryer. But since your changing the dryer & compressor I guess it doesn't really matter.
11-05-2014, 05:41 PM
#4997
Senior Member
11-05-2014, 06:43 PM
#5000