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  1. M

    Compressor Motor Upgrade Question

    Not according to the manufacturer. Puma advertises that the Puma PK6060V puts out 11.3CFM at 90psi. See: http://www.aircompressorsdirect.com/manuals/pumapk6560vcatalogpage_oct2014.pdf. Not that it's relevant, since the PK6060V has a higher displacement pump than the one on the PK5020VP...
  2. M

    Compressor Motor Upgrade Question

    I think so. You'll be able to sell your nice, albeit smaller, compressor and recoup much of the cost for the upgrade. When you look at the price for new 3HP compressor motors that are decent quality, it's prohibitive (you and I don't get them at the prices that Puma, Campbell Hausfeld, and...
  3. M

    Compressor Motor Upgrade Question

    I see many apparent problems, including the likelihood that he would destroy his pump and/or not achieve a significant improvement in performance. 1. The math does not work using the numbers supplied. 1450 RPMs is 32% higher than 1100 RPMs. 12 CFM is 140% higher than 5 CFMs. You don't get a...
  4. M

    Garage Door Header Steel I-Beam Sizing

    Agreed -- if there is really 6" of space. If the driveway leading in is not dead-flat, that 99" could quickly become 101" or more at the entrance. Maybe this approach might help gain some clearance:
  5. M

    Another Radio Arm Saw

    This was a new one on me: "motor horse" The ad said "Have a motor horse excellent condition" I puzzled over that for a while. Then I came back later and found that the seller had added a picture. "Motor horse" meant "engine hoist."
  6. M

    I am compiling all of the black friday tool ads in one spot.

    A belated "Thanks!" from me. If anyone is looking for a nice 60 gallon compressor, $480 at Northern Tool for the Puma PK6060V on Black Friday is a great deal. I just bought one for $500 and I am very happy with it. Unlike many competing units, it includes: Cast iron, quiet, V-twin pump...
  7. M

    POLL: Backyard mechanic business opinion

    "As for niches, I'm circling in on brakes..." Get insurance. Lots of it. When some customer runs over a kid, motorcyclist, pedestrian, or bicyclist and tells the cop that he pressed the brake and nothing happened or that the pedal went to the floor, you could find yourself up to your ears in...
  8. M

    Another Radio Arm Saw

    hertz shifter... Seen in an ad for a 1981 Thunderbird on raceny.com: has 302 motor, hertz shifter, posse rear end... Title for craigslist ad for telephone lineman's handset: Telecom Head butts tool - $40 (Fairfax va) (yes, seriously...
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