Correction, 29inhg for vacuum. Sorry, i was thinking blood pressures.

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airedale2 Welcome to Texas
1984 MB 300D 266,000
1993 Nissan PU 271,000
2002 Tahoe 122,000
2004 VW TDI 75,000

25-35 might be more on the high side for this refrigerant as well. I am shooting for 25 as a high. The low side pressures could go as low as 18 from what i understand with this gas.

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airedale2 Welcome to Texas
1984 MB 300D 266,000
1993 Nissan PU 271,000
2002 Tahoe 122,000
2004 VW TDI 75,000

The gauge reads in "inhg". I assume the manufacturer to be correct. Either way, I have 40 degrees at the vent. Two identical systems could require different amounts of refrigerant and pressures with identical components. Ive learned through life, that life doesnt follow a set path. My current job neither. You have to make adjustments and corrections. But be careful, one day some one will correct you.

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airedale2 Welcome to Texas
1984 MB 300D 266,000
1993 Nissan PU 271,000
2002 Tahoe 122,000
2004 VW TDI 75,000

When you complete your training, I should hire you to redo my air conditioning in the 240D and check out W126.

Can't seem to find anyone available to do that.

The 126 needs a vacuum diagram and some vacuum checking too, just have not had the time as I build my enclave-man cave. Got to do all the essentials on that before winter.

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Strelnik
Invest in America: Buy a Congressman!

1950 170SD
1951 Citroen 11BN
1953 Citroen 11BNF limo
1953 220a project
1959 180D
1960 190D
1960 Borgward Isabella TS 2dr
1983 240D daily driver
1983 380SL
1990 350SDL daily driver alt
3 x Citroen DS21M, down from 5
3 x Citroen 2CV, down from 6