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The plastic pieces must have been part of the comp, they can't get thru the TEV, and drier....
For the hose flush....
If you jack the back of the car high, I think you can let the low side hose drain into a bucket (once off the evap).
Same with the long run (hose 4) from #3 to #9 and same for the short RD to front cond hose.
That is one nasty system.

Here is something else re your original post.
PER SANDEN formula in their service guide:

Oil amount(oz)= [(refrigerant charge (oz) x 0.06) + 2.2] / 0.9
per my calc assuming the 26oz of 134 = 4.5oz OIL
BUT there is more.

For LONG HOSE applications add: 1.0oz /10 feet of hose x 1.1 safety factor
So 4.5oz + (assume 30 feet) 3oz = about 7 oz total.

All in the compressor, is ok. Drain whats in it first so you get an accurate amount in.
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87 911 coupe, GP white, cashmere/black
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Last edited by ganun; 08-11-2016 at 11:25 AM..
Old 08-11-2016, 10:59 AM
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With evap & condensers on flush list... I pulled a few parts out of comp to test some potential fluids. Acetone performed best to remove grime from part (by rocking glass bowl back-and-fourth with part submerged in test solution---no abrasion to part other than fluid itself.) 2nd place = pure alcohol.

Plastic strand bits still being uncovered.




Good reed seat vs "stranded seat." May be a crusade to determine wtf that plastic is and where tf it came from. Believe this strand-stuff was in system during 2014 charge tests---causing high pressure gauge flutter. Perhaps this exonerates me from mishandling manifold and injecting air in system. (Only once during all those tests did HP gauge not flutter---all other times it did... even after swapping gauge to oil-filled.) If system delivered 33 degree running refrigerant + plastic strands... seems good news for coming performance.






Anyone recognize this strand stuff? Is easily bendable. After being cleaned is close-to-black color. Very strong. Dimensionally stable. Feels like thick cassette tape.



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Current: '80 Silver Targa w /'85 3.2, '79 Anthracite 930
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Old 08-11-2016, 12:08 PM
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Karl, all ribbing aside, acetone would not be a wise choice for "total system" flushing - will make a mess of the rubber hose. Not sure if you were considering using it for that, butt wanted to mention it.
Old 08-11-2016, 12:14 PM
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A thought on plastic-like strand stuff - do the compressor pistons have rings (don't know - have never taken one apart)? Wonder if those are ring remnants?
Old 08-11-2016, 12:29 PM
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Quote:
Originally Posted by ganun View Post
The plastic pieces must have been part of the comp, they can't get thru the TEV, and drier....
For the hose flush....
If you jack the back of the car high, I think you can let the low side hose drain into a bucket (once off the evap).
Same with the long run (hose 4) from #3 to #9 and same for the short RD to front cond hose.
That is one nasty system.

Here is something else re your original post.
PER SANDEN formula in their service guide:

Oil amount(oz)= [(refrigerant charge (oz) x 0.06) + 2.2] / 0.9
per my calc assuming the 26oz of 134 = 4.5oz OIL
BUT there is more.

For LONG HOSE applications add: 1.0oz /10 feet of hose x 1.1 safety factor
So 4.5oz + (assume 30 feet) 3oz = about 7 oz total.

All in the compressor, is ok. Drain whats in it first so you get an accurate amount in.
Thanks George. I was writing my post above as you posted. Jack-up idea is interesting. Wonder what angle of car is actually required?! Might be dramatic! I figured to blast last fluid out of drapes but... from experience I know is not good to ignore Charliewisdom. Gona replace the lot of it---even the short hoses that could have been flushed.

BTW... Might be wrong but believe it was you who suggested "lower charge weight" working back in '14. Think I was fiddling---at the time---with over 30 oz. Late compliments to you if I missed doing so back then.
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Old 08-11-2016, 12:35 PM
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Quote:
Originally Posted by Rawknees'Turbo View Post
Karl, all ribbing aside, acetone would not be a wise choice for "total system" flushing - will make a mess of the rubber hose. Not sure if you were considering using it for that, butt wanted to mention it.
Yeah... thanks Ron... am with you on not using acetone for "total system." Was checking it out for evap and condensers only. Question is how to get it in (and out) of those units? (Evap is not problem since that will come out of car entirely. Wanted to leave condensers in. Not sure that's possible.) Bilge pump's plastic is also not going to last long pumping acetone. Might surrender to acetone and do pure alcohol since that can be pumped with no problem.
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Old 08-11-2016, 12:43 PM
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Quote:
Originally Posted by Rawknees'Turbo View Post
A thought on plastic-like strand stuff - do the compressor pistons have rings (don't know - have never taken one apart)? Wonder if those are ring remnants?
You might have something there Ron. I felt the pistons and some wobble rather excessively in their cylinders compared to others. Seemed odd to me... butts... Not knowing how they're supposed to feel, I did not conclude anything. Gona take a better look now.
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Old 08-11-2016, 12:50 PM
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Quote:
Originally Posted by Discseven View Post
some wobble rather excessively in their cylinders compared to others. Seemed odd to me...
Game over, Man. Stop. It was near death last year.

Pull the compressor, bust it into aluminum and steel parts and take it to the scrap yard to collect the $0.63.

Admiration of your curiosity, though.

Remember that Indian in the don't litter poster. The one with the tear. That's me.

Git-R-Done.

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Old 08-11-2016, 01:20 PM
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Wobbler next to non-wobbler. Now... tilting wobbler over as far as possible, and having just referenced Sanden cross section... concluding wobblers are wiskey-barrel worn pissers, and, appears there are no rings present (based on tilting wobbler over as far as possible for look-see and diagram---which may or may not be 100% accurate. Given detail in drawing, I'd expect to see rings if they were part of system.)

Regardless... admire you making the call on that as you did Ron! New intel in the bag is a good thing. (Charlie's got to be rolling his eyes.)



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Old 08-11-2016, 01:26 PM
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Rawknees.

You have reached you new self defined quota of jacking with me for no reason.

I mention I bought a doughnut months ago. You deliver an onslaught of me fictionally eating a dozen doughnuts and drinking 500 beers a day in 50 subsequent posts.

The most offensive was the Pope Dying thread in PARF where, out of the blue, you said "Pope must have eaten doughnuts and drank stones like 80 year old Bob."

Tomorrow's my Birfday. 60. I wonder if I will go through a Maynard G Krebs transformation.
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Last edited by Bob Kontak; 08-11-2016 at 01:32 PM..
Old 08-11-2016, 01:28 PM
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Quote:
Originally Posted by Bob Kontak View Post
Game over, Man. Stop. It was near death last year.

Pull the compressor, bust it into aluminum and steel parts and take it to the scrap yard to collect the $0.63.
Way to cut to the chase Bob! And HAPPYBIRTHDAY!!!!!
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Last edited by Discseven; 08-11-2016 at 01:35 PM..
Old 08-11-2016, 01:33 PM
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Sugar Scoops, I don't recall mentioning doughnuts in this here thread, butt since you brought it up!!!



Old 08-11-2016, 01:35 PM
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Quote:
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. . . in 50 subsequent posts.
How dare you short-Richard me so - must be 500 "Stones & doughnuts" posts by now! Totally uncool of you, Bro!!!
Old 08-11-2016, 01:37 PM
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Way to cut to the chase Bob!
Indian shows my age.

Sunset years are upon me.

I could go at any time.
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Old 08-11-2016, 01:38 PM
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Tomorrow's my Birfday. 81. I wonder if I will go through a Wild Willy West transformation.
Fixed, yer welcome, and smooches, Bobasaurous!
Old 08-11-2016, 01:39 PM
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Jeebus, are those bacon bits on the top middle two. Eff yeah!
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Old 08-11-2016, 01:41 PM
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Jeebus, are those bacon bits on the top middle two. Eff yeah!
Bob, you just revealed the secret to my "perverted vent temps" - a couple of bags mixed with the R134A and booooom!

Old 08-11-2016, 05:33 PM
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Quote:
Originally Posted by Discseven View Post
Yeah... thanks Ron... am with you on not using acetone for "total system." Was checking it out for evap and condensers only. Question is how to get it in (and out) of those units? (Evap is not problem since that will come out of car entirely. Wanted to leave condensers in. Not sure that's possible.) Bilge pump's plastic is also not going to last long pumping acetone. Might surrender to acetone and do pure alcohol since that can be pumped with no problem.
I have restored a few older A/C systems..some of them very nasty inside. Hose replacement is always a good idea.

For flushing out the A/C system, I have always used NAPA "Air Brake Anti-Freeze" PART #
NCB M2832 about $6.50 a quart, which is mostly Methanol with some bitterment to keep the rummies from drinking it. Easy to find at Napa..quarts or gallons.

Flood the evaporator/condenser/old hoses with the ABAF using a funnel and hardware store plastic tubing..then blow the system out with compressed air. Do it both ways several times and repeat with your new hoses, receiver dryer and expansion valve removed.

Use good chemical gloves too.

Once the system is well flushed and "blown out" reassemble with your new hoses, R-D and expansion valve and pull a good vacuum. Any residual methanol will boil out along with the atmospheric H2O. Don't be surprised by the methanol fog coming from the outlet on your vacuum pump..no smoking please too.

Old 08-11-2016, 06:00 PM
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^^^ DB... You let this soak or... install and blow out right away?
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Old 08-11-2016, 06:06 PM
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I just fill and flush several times..you can let it soak, however I think the agitation of blowing it out several times scrubs better. Keep filling and blowing it out till there no more discoloration in the old methanol fluid. It takes a while and the blow outs can make a mess..be careful. It is effective. Do not flush your new compressor with this stuff too, I forgot to mention that.
Old 08-11-2016, 06:28 PM
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