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  1. M

    Cleaning up / painting old compressor

    I have an old compressor tank that was repainted once before. It looks to me like it was shot with rattle can baby blue when another motor and pump was put on it decades ago. When I was blowing it down after some dirty grinding work, the rattle can paint started flaking off showing a...
  2. M

    Motor temperature - air compressors

    I am wondering what motor temperatures everyone's air compressors are running at after prolonged use (more than 30 minutes running). And also what a "safe" temperature is. I have 3 and they all vary based on age and prior operating environment. #1 is a GE 2HP ODP circa 1995 that will get up...
  3. M

    Pipe plug / 4 point sockets

    I am looking for a Made in U.S.A. set of pipe plug / 4 point sockets up to 5/8" for both male and female pipe plugs. Does anyone have any links that I can look up? I'm tried looking at Wright, Williams, and Proto catalogs and didn't see what I was looking for. Maybe I'm calling it by the wrong...
  4. M

    Question about air compressor pump up time

    I have a very old dual stage Champion air compressor, but I think this question may apply to all types of compressors. Basically the first 20 psi of pressure it generates in about 1:37-1:45. Every subsequent 20 psi takes about 3:00. This occurs if the tank is empty and its starting from zero...
  5. M

    Air compressors working in parallel seem to have an efficiency gain

    Hi All, I have a couple of air compressors I've combined in parallel to build CFM delivery. I've done some computations and don't understand the outcome. Compressors: Jenny K2A-8P - 2HP single stage with an 8 gallon tank, 1140RPM pump, rated 8 CFM @ 125PSI dated 2003 Emglo K2E-30 - 2HP...
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    Problems with Makita 4.5" angle grinder

    I got a Makita 4.5" angle grinder with the paddle switch about 2 months ago. I find it vibrates enough with a depressed cutoff wheel that my hands get tingly and if I use it with a coarse grinding disc I can start to feel it up my forearms. It doesn't get very hot, just warm and it doesn't...
  7. M

    Using single stage and dual stage compressors in parallel

    Hi all, I have 2 x 8.4 CFM @ 100 PSI and 1 x 6.4 @ 90 PSI single stage compressors. With 98 gallons total reserve, they will go from 100-130 psi in about 85 seconds. I am thinking of replacing the smallest with a new dual stage compressor in the 15-18 CFM range. There are two ways I see to...
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