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Search results

  1. T

    REV Truck Air Conditioning

    I just searched and found only one screw in all the manuals matching those measurements, it's #4, part of the geared fan drive (6 pieces): I will double check when I get home, and I can see making sense, as I found it in the area closer to the front of the truck...the question now being...
  2. T

    REV Truck Air Conditioning

    When you said metric, it got my attention...therefore correction, my bad, last night I just measured the screw with the calipers and used the numbers that looked closer to standard size screws, however after measuring the thread, it is an M8x1.25mm and the length is about 45mm (175"). Sorry...
  3. T

    REV Truck Air Conditioning

    When I moved the truck I found this allen screw in the driveway, 5/16 x 1.75": Does anyone know where it is used on the truck? I don't remember removing or replacing this type of screw in any of the truck parts that I worked with.
  4. T

    REV Truck Air Conditioning

    Reading more about the air conditioning system, it clarifies that if the refrigerant escapes quickly, it will also take out with it some of the refrigerant oil. If that splash above the compressor was indeed the oil, I would guess that about 1oz or less was expelled with the refrigerant and will...
  5. T

    REV Truck Air Conditioning

    Aha! That would explain the venting and everything still working OK after. Thank you!
  6. T

    REV Truck Air Conditioning

    I went with the I used the numbers from this diagram (yes, my high side is a little higher by about 10%, but for testing purposes I thought it's OK, as I plan to vacuum it) I understand what you mean about the coolant cap and I like your idea, it is just that the smell was like R134, which I...
  7. T

    REV Truck Air Conditioning

    Quick update, I measured the low & high side at 15psi and 150psi, then I added some refrigerant and uv dye and the pressure stabilized at 40 & 225psi at around 80-85F outside temp. Right before, I washed the engine and the hood just to make it easier to observe any new splashing, leaking, etc...
  8. T

    REV Truck Air Conditioning

    And thanks for the good explanation about the air, I get it now.
  9. T

    REV Truck Air Conditioning

    That's why I was asking about the oil. The shop didn't seem to check about or add any oil after they vacuumed the system, they only added the R134a. However, from what I read, only when a component like the compressor, condenser, etc. gets replaced, the oil needs to be replaced as well. How...
  10. T

    REV Truck Air Conditioning

    One other thing I didn't mention because wasn't sure if I saw it correctly...after the shop recharged the AC system (using their machine) the high side gauge looked maxed out, which in theory that would be about 500psi? I didn't feel that confident about the shop because when they brought the...
  11. T

    REV Truck Air Conditioning

    For my own education, why would the A/C system need to be vacuumed again if they just did it yesterday? After fixing the leak, couldn't the system just be charged to the appropriate high & low pressures for the given ambient temperature? Thanks!
  12. T

    REV Truck Air Conditioning

    I am still going to get some R134 with dye and the manifold gauges to do some troubleshooting myself, sorry but I can't resist :)
  13. T

    REV Truck Air Conditioning

    I am hoping is not the compressor, the truck doesn't have that many miles or hours on it, but it looks like it could be.
  14. T

    REV Truck Air Conditioning

    Yes, they used the machine and programmed the 3lbs 5oz in it, but wasn't sure if the machine knew to add PAG oil and how much. I will call them tomorrow.
  15. T

    REV Truck Air Conditioning

    There is something like an oil splash on under the hood above the compressor, not sure if it was there before...also the high side plastic red cap was covered in a grey residue. It looks like maybe the compressor went out, and I am hoping is just the high side valve, but it's more like wishful...
  16. T

    REV Truck Air Conditioning

    I finally got around to take the truck (1165A1) to a car shop to service the A/C and after they drained it, they filled with 3lb 5oz R134A (I forgot that it needed 3lb 8oz and having 3oz less should not be a big of an issue?). Soon after starting the engine the cold air started coming out from...
  17. T

    Truck bought for parts, got it running, but…

    Not yet, tried the easier things first and that would be next, looking to get a testing kit.
  18. T

    Truck bought for parts, got it running, but…

    Just a quick update, I fixed all the oil leaks (so far it looks good) and replaced the synthetic Shell Rotella T6 with conventional 15W-40 (couldn't find Valvoline HD in my area and got Chevron Delo 400 SDE HD). I run Rotella T6 on my other HMMWV (same 6.5TD engine) with zero blowby and no...
  19. T

    Truck bought for parts, got it running, but…

    Good news! It turns out that when I installed the turbo assembly the first time, with the crossover attached, I pushed out the snowman seal (found it in the engine valley), I guess when was trying to fit the crossover under the body. This time, after learning the turbo inside and out, I...
  20. T

    Truck bought for parts, got it running, but…

    Yes, I took a close look and one thing that doesn't look right is that the small side of the snowman seal seats lower than the larger side, almost level with the engine block edge, giving the feeling that there is very little to no compression present when the turbo cartridge is installed. I...
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