AC question

bam-bam

Help, please.

I need to know the proper amount and type of oil for the Sanden compressor on my wag. Does anyone have a manual that specifies?
I assume it takes PAG 100, most Sandens do, but I don't want to under- or over-lube it. When I retro'd it to 134a last year, I just fixed the leak, vacuumed it down, and charged it. I figured since I have it apart I'll give it some love.

thanks!

Slammedtallboy

This is from a service bulletin on the honda tech web site.

Service Bulletin
Converting R-12 A/C Systems to R-134a
BACKGROUND
Because of environmental concerns, production of
R-12 refrigerant is being phased out. Honda is
making retrofit kits available to convert systems
that currently use R-12 refrigerant to R-134a
refrigerant use.

RETROFIT KIT INSTALLATION
1. Use the R-12 recovery/recycling station to
remove the R-12 from the system.
NOTE: Failure to remove all the R-12 from the
system will cause contamination of the R-134a
recovery/recycling station.
2. Disconnect the R-12 recovery/recycling
station.
3. 1990 – 91 Accord only: Inspect receiver line
“A.” If the charge valve is fitted to a block and
points toward the alternator, installing the
retrofit valve will leave insufficient clearance.
Install a new receiver line “A” (see PARTS
INFORMATION) with the charge valve
mounted in the line.
4. Use a shop towel wetted with Honda brake
cleaner to clean the threads on the existing
valves. Apply Locktite (included in the kit) to
the threads of the existing valves. Install the
R-134a retrofit valves from the kit.
5. Connect the R-134a recovery/recycling station
to the system. Evacuate the system.
6. Add 120 ml of PAG oil (included in the kit) to the
system.
7. Determine the amount of R-134a refrigerant
needed to charge the system by subtracting 50
ml (1-2/3 oz) from the system’s R-12 capacity.
8. Charge the system with the proper amount of
R-134a refrigerant.
9. Start the engine and let it idle. Turn the A/C
system on and off several times. Listen for any
abnormal noises.
10. Repeat step 9 with the engine running at 1,500
rpm and 3,000 rpm.
11. With the system on, check the cooling
performance at the dashboard vents.
2 of 2 95-020
12. Check the high and low side pressures and
compare them to the R-12 specifications. They
should be slightly higher.
13. Turn off the A/C system and the engine.
Disconnect the recovery/recycling station.
Install the caps on the valves.
14. Place the R-134a caution label from the kit over
the existing R-12 label. If the R-12 label is no
longer there, place the R-134a label on the
right damper housing.

bam-bam

Thanks, but that's just a supplemental charge they're adding to replace what was recovered along with the refrigerant. What I'm wondering is how much the compressor holds from empty. The usual trick is to dump the oil into a graduated container and put the same amount back in, but somewhere there's a chart that shows an amount for each component- I know there is for trucks.
I've got the whole system out, flushed, fins cleaned and ready to go back in. I'll probably make a few educated guesses :P

Eagle Beagle

Sanden / search option

DIY Kit Support Forum
http://www.rparts.com/forum/search.php?f=4


Technical Forum
http://www.rparts.com/forum/search.php?f=2



: )

TooRandom

Where would I be able to purchase the converter kit?

Thanks,
Toorandom

bam-bam

Almost any auto parts store should have them, I've even seen them at wallyworld. The kit just consists of 2 service fittings and a retrofit decal.

rti intrac

When we Regass a/c systems at work we only put 40 millilitres of oil in it, the compressor will ahve heaps of oil in it, jsut need to top it up a little

WagonWhirled

4.1 oz of oil in the ac system whether you have a sanden or matsushita compressor.

flush out the compressor of the old oil with the new oil to be used.
then add the new oil throughout the system before you put it back together....2 oz in compressor...1 oz in condenser..1 oz in evaporator...