View Single Post
  #10  
Old 08-12-2013, 04:17 PM
vstech's Avatar
vstech vstech is offline
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,389
do you have any idea what the "BLACK DEATH" is?

in an electrical compressor, black death is from the winding insulation burning inside the compressor... there is no winding inside an automotive compressor...
the aluminum and copper if corroded from acid should form either a green or a white sludge... what's left to make black slime? the rubber hoses... so... they should be replaced. and modern hose has a "barrier" that keeps the pag and 134 from attacking the hose and leaking out.

My thought are that the rubber hoses should be replaced, and the metal parts flushed and filtered.
the "dryer" in an automotive system is nothing more than a can with a tube in it, and a desiccant bag inside to absorb moisture. it has zero filtering capabilities. if the system has black residue in it, a LIQUID line filter needs to be installed in the line between the dryer and the condenser. this will polish the oil and remove all traces of black death.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote