Mitch Haley wrote:
I'm reading the factory procedure for the old York and Harrison compressors
you listed above and thinking "what a crock". They attempt to remove the
mineral oil by flushing it with your old R12 and pulling a vacuum, put the
R134 adapters on, fill with R134+PAG, and that's it. No barrier hoses,
no mention of what happens to PAG when you run it through chlorine coated
condensor&evaporator. They get points for saying to replace the receiver/dryer,
where most of the mineral oil is probably sitting.
Turns out that 10+ year old hoses that had run mineral oil AND R-12
provided a more complete barrier than NEW barrier hoses!
Marshall
--
Marshall Booth (who doesn't respond to unsigned questions)
"der Dieseling Doktor" [EMAIL PROTECTED]
'87 300TD 181Kmi,'87 190D 2.5 199Kmi, '84 190D 2.2 227Kmi, '85 190D 2.0
159Kmi, '87 190D 2.5 turbo 234kmi
Diesel Technical Advisor MBCA, member GWSection
http://www.dhc.net/~pmhack/mercedes/mbooth1.htm
