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Thread: R-134a adapter for TGP low side AC fitting?

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    R-134a adapter for TGP low side AC fitting?

    Ugh. I picked up some R-134a fittings for the TGP. I managed to squeeze my hands in there to attach the low side adapter which went on without a problem. Then I tried attaching my manifold gauge set to it and it seems damn near impossible. I suppose I could try harder and maybe get it on, but it doesn't seem a good idea anyway as I'm sure the turbocharger will melt my manifold gauge set hoses. Is there a fancy adapter that might work? I'm picturing something with a right-angle and extra length.
    I've also read about replacing the accumulator with one with a low side fitting, but all links are dead. Anyone got a p/n for it?

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    check out murray part # 5998159981.jpg

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    Thanks, have you actually tried that on a TGP? My concern is the high-side tube will be directly adjacent to the fitting end and still not easy/possible to get my manifold gauge set on it. That's why I was thinking right angle, then extended up a bit longer might work.

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    Forum Moderator mfewtrail's Avatar

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    The part number for the accumulator w/ low side port is 33206. Depending on where you buy it, the brand should be listed as Everco or Four Seasons. There are probably other part numbers for different brands that will fit as well.
    matt f. - '93 SE, '90 Black/tan TGP(#101 of 2,749), & '90 Red/tan TGP

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    Community Manager White93z34's Avatar

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    I used that accumulator as well, just have to remove the schrader that comes in it and put a standard 134a low side adapter on.
    -Chris D. - Your Community Manager

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    Thanks, Matt. That looks like it will put the low side in a very accessible open area. It looks to be a whole lot cheaper to buy it on Amazon than Autozone or O'Reillys. I noticed the AC Delco replacement 15-1592 has the valve there as well, but for $3.47 more. How big of a pain is it to replace? It looks pretty simple and doesn't look like a whole lot in the way, but I've come to realize looks can be deceiving.

    I also found this:
    http://www.autozone.com/autozone/acc...entifier=82522
    The photo looks like it's a simple extension which would be female one end and male on the other, but specs say something different. It's rather pricey and would only be worthwhile if the accumulator is a bigger headache to replace than it looks.

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    Community Manager White93z34's Avatar

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    its not too bad the bracket is kinda a pain to work around to fish the accumulator out of. after you get past that its not bad at all.

    Technically when servicing/converting AC you really should replace the accumulator anyhow, and it puts the low side port in a very nice accessible position.

    that hose adapter thing looks like a slick idea, but considering that its proper protocol to replace it all I'd just relocate it to the accumulator, and its less crap getting in the way of the hot turbo housing.
    -Chris D. - Your Community Manager

    "Insanity has no brand loyalty" - Got2b GM
    1992 Chevrolet Lumina Z34 3.4L TDC v6 Getrag 284
    1990 Pontiac Turbo Grand Prix 3.1L v6 Hydramatic 4T60
    1997 Pontiac Bonneville SSE Supercharged 3.8L v6, Hydramatic 4T60E
    1987 Chevrolet Camaro Z28/IROC-Z 5.0L v8, Hydramatic 700R4

  10. #8
    Use ES-12 thru the old style smaller fitting. Charge referencing temp only using a thermometer. Best bet...recover old gas, then charge ES 12 into 0 vacuumed system using a scale and temp reading..

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