I am replacing a leaking AC pipe. The the drier has been on there since it got converted a decade ago so I assume I ought to replace the drier and VOV while I'm at it.

Do I need to add oil to the new drier and how much?
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Paul NW Indiana '89 744 Turbo 145K/ '90 745 turbo 127K

See how much oil comes out of it when you replace.

Good time to get a set of the green R134 o-rings.

-Ryan
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Athens, Ohio
1987 245 DL 324k, Dog-hauler
1990 245 DL 142k M47, E-codes, GT Sways/Braces, Dracos, A-cam
1990 744GLE 189K 16-valve
1991 745 GL 304k

http://www.brickboard.com/FAQ/700-900/VolvoR134Conversion/R134ConversionPage1.htm

Look at pages 5,6
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Post Back. That's whats makes this forum work.

That section is for a conversion with no oil in the system.

I looked in my green factory manual and it says to to measure the quantity in the dryer and add that ammount into the new. (approx. 80-100 ml).

Next question. DOes the dryer come with O rings or do I need to order those too. I'm planning on going with a 4 seasns unit.
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Paul NW Indiana '89 744 Turbo 160K/ '90 745 turbo 140K

The O-rings have to be compatible with the refrigerant. You should check with Four Seasons to see if their auumulators include them.
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See the 700/900 "FAQ" at the menu bar top screen left side.