Question about Air Tools & Compressors

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The air compressor will now only pump a small amount of air. Not enough to put 12 lbs into a lawn tractor tire. Worked fine for several years. how to repair, please?

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Many small air compressors are made with ceramic internal parts, when they wear out there is no fixing them, one must buy another compressor

Posted on Oct 21, 2013


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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Electric Air compressor

Is it building pressure in the tank and just not going out your air hose ? Or is it not building any pressure in the tank?If it is building pressure than the problem is narrowed down to your outgoing channels which does simplify things.(-8 Either something has got clogged in the outgoing airway, or there is a good possibility that the pressure regulator needs new parts if you can find them or just replace it. Have you tried turning the regulator output up or down? It may be stuck all the way closed which would shut off the air coming out.If your not building any pressure then the piston/s may need new rings or the cylinders are scored and need machine work. That part works basically the same as the piston/s and valves in an automotive motor. Except instead of pulling a fuel mixture in and igniting it for power and then pushing out the exhaust, it pulls in air and pushes it into the holding tank compressing it to X# of psi with the assistance of a check valve.

Posted on Nov 17, 2008

  • 1383 Answers

SOURCE: Makita MAC2200 runs fine (with new Manifold Switch

I have worked on many makita compressors and have run-across this problem on a few of them. Your compressor has a check valve that is supposed to hold tank pressure after the switch reaches set pressure. There is an unloader valve built into the pressure switch that releases the pressure in the discharge hose after the unit shuts off. The unloader allows the compressor to restart with-out any pressure in the discharge line. If the brass check valve is leaking pressure back into the system, air will leak out of the unloader valve. Follow the discharge line to the tank and you will see the brass check valve. To test valve for fault, run the compressor till it builds around 80 psi and unplug the unit from the wall outlet. Remove the 1/4" hose connector from the check valve and check for air leaking out of the valve. If it is leaking you can order form or call the makita 1-800 number. The price is about the same. Good Luck on your repair.

Posted on Mar 19, 2009

  • 138 Answers

SOURCE: Craftsman air compressor 1 HP 12 gal 125 psi

this is probably an "oilless" compressor, it has "piston" with a thin ring of leatherlike material acting as a piston ring, the "cylinder" is an aluminum sleeve - what usually happens is the cylinder gets scratched from dirt or just wear or the leather ring deteriorates, that's why it will go only so far - the only fix for this is to replace the cylinder and the piston

Posted on Aug 18, 2009

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SOURCE: i have a 5 gal, i hp craftsmen compressor, 3 years

Oil free pumps do tend to blow the piston ring (not too expensive) available at Remove covers to pump and manually turn crank until piston is at top and look at the condition of the cylinder neer top, If it looks scratched, order cylinder kit with piston ring. If it looks good and shiney, could be the valve plate in the head. There are reed valves that tend to break. Run pump however with covers removed and check with soapy water for air leaks and repair as needed (air leaks under the cover will prevent unit from filling). Good luck

Posted on Nov 13, 2010

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SOURCE: We have a Craftsman 15

compressor 15gal upright model 919.166442 ser 2616098346 will not pressurize greater than 30psi. Once 30psi is achieved a release sound (possible bypass) begins. Motor then runs continiously.

Posted on Jul 09, 2011

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Rear tire goes plum flat after two days cant find any thing in it or when I put air in it at 45 psi cant hear any air leak

put soapy water around the bead (where the tire meets the rim) aluminum wheels have corrosion there often and they will leak ,, check inside and outside pump it to about 50 lbs and lay it on its side , if that is the problem you are best to have it unmounted cleaned and reseated

Apr 01, 2015 | 2008 Volkswagen Touareg

1 Answer

12 gal 2hp instruction manual

You didn't give your model number so here's a possibility: If it's vibrating that much it's usually a good indicator the air pump connecting rod is broke. If it's been in storage it's possible the oil evaporated enough or it didn't have enough in it that it didn't lubricate the con-rod bearings. It would have started the first time but as heat built up in the bearing areas it could have seized up when it was shut off or broke when it tried to restart. You'll have to take the air pump apart to verify what's broke and what's damaged and what has to be replaced. Most Craftsman parts are only available through Sears (

Mar 05, 2012 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

2 Answers

Trying to replace the water pump on my Saturn SL2 1993. I removed the 3 bolts of the pulley, but there is no room to get teh pulley out (its right up against the engine compartment wall. How do I remove...

Check and note this procedure Water Pump - REMOVAL & INSTALLATION
(see Figures 1, 2, 3, 4 and 5)
  1. Allow a sufficient amount of time for the engine to cool down.
  2. Disconnect the negative battery cable. Drain the engine coolant from the radiator and block drains into a suitable clean container.
CAUTION When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant may be reused unless it is contaminated or several years old.
  1. Remove the serpentine drive belt.
  2. Raise the front of the vehicle and support safely using suitable jackstands. Remove the right front tire and inner wheel well splash shield.
  3. If access to the water pump is desired from underhood, remove the air conditioning compressor bolts and position the compressor aside with the refrigerant lines intact.
  4. Spray the water pump hub with penetrating oil to loosen any rust or corrosion that might bind the pulley and damage it during removal.
  5. Remove the water pump pulley bolts and allow the pulley to hang freely on the hub. A 1 in. (25.4mm) block of wood or a hammer handle may be wedged between the pump and crankshaft pulleys to hold the assembly while loosening the retaining bolts.
  6. Move the pulley outward or remove as necessary for access and remove the 6 water pump flange bolts. Carefully pull the pump and pulley assembly away from the engine and remove the assembly from the vehicle. If necessary, a gasket scraper may be inserted under the flange, but be careful not to damage the machined aluminum block sealing surface.
To install:
  1. Thoroughly clean the gasket mating surfaces of all old gasket material. Apply a small amount of gasket sealant at the outer edges of the bolt holes to hold the gasket in place, then install the gasket onto the water pump assembly.
  2. Install the pump assembly with the small bump located next to one of the attaching bolts in the 11 o'clock position. Install and tighten the bolts in a crisscross sequence as shown to 22 ft. lbs. (30 Nm).
  3. Install or reposition the pump pulley, as applicable and tighten the bolts to 19 ft. lbs. (25 Nm). If the pump hub exposed through the pulley is rusty, clean it with a wire brush and apply a thin coat of primer to prevent the pulley from rusting onto the hub.
  4. Install the serpentine drive belt, the right splash shield and right tire assembly.
  5. If repositioned, install the air conditioning compressor.
  6. Close the radiator drain plug and install the cylinder block drain plug. Tighten the block plug to 26 ft. lbs. (35 Nm).
  7. Connect the negative battery cable and properly fill the engine cooling system.
  8. Operate the engine and check for coolant leaks

Fig. 1: After removing the water pump pulley mounting bolts, remove the pulley


Fig. 2: Remove the water pump mounting fasteners ...


Fig. 3: ... and remove the water pump from the vehicle


Fig. 4: Remove and discard the water pump gasket


Fig. 5: Water pump bolt torque sequence

Hope helps.

Sep 11, 2011 | Saturn SL2 Cars & Trucks

1 Answer

Mt tire in the front poped and I can not inflate it?

Do you have a tube it the tire? if you don't, pull the wheel off and lay in flat on the ground, put pressure around the tire at the rim edge and begin to pump with a compressor. A regular hand pump is hardly sufficient. You may even try standing on the tire edge while pumping if you can't get enough of pressure with the hands. The point is to push the tire inward to prevent air bypassing while pumping.

Oct 03, 2010 | Garden

2 Answers

Craftsman Lawn Tractor/ hard start/ whitish smoke

does it turn over slow or fast if it turns slowly thats the problem so it could be battery or starter they have to have a good amount of rpms to burn fuel right when starting if not it floods out the engine with gas hope this helps thanks wade

Jul 05, 2009 | Craftsman 21 Hp 42" Deck, Ys 4500 Lawn...

1 Answer

Craftsman 30'' mower front tire off rim can't put back on the tire loose but still on the rim...the sidewalls no longer engage the rim tight to hold air but still aroung the rim loose....If that's the case, get a jack, can of fix a flat, and a small ratcheting hold down strap.....jact the tire off the ground.....wrap the strap around the tire and ratchet it tight to get the beads of the tire to touch the rim....then commect the fix a flat or, if you have ,,,air from compressor to inflate the tire,,,,might have to work it a little to get the tire to reseat on the rim....this should work for you....once the tire is seated on the rim....stop inflating the tire until you remove the strap or you migh have a problem getting it to release from the tire if fully inflated....

Jun 07, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...

1 Answer

Craftsman 3 gal ari compressor low presure

put a blower on the hose and see if air comes out
very possible there is a blockage in the hose or if you are using quick connects they may have failed

Apr 17, 2009 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

No fuel getting from fuel tank to fuel pump

It has a screen filter inside the tank that may have gummed up.If you drain the gas and look inside the tank,You will be able to see it.

Apr 03, 2009 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

1 Answer

Portable Air Compressor Comparison

Portable air compressors give flexibility to the job both inside and outside the working environment. They're powered by electric, gasoline or diesel engine. A larger portable air compressor often has its own carrying trailer with wheels and handles. You buy a compressor based on its horsepower, pounds per square inch (PSI) and cubic feet per minute (CFM). Choose a portable air compressor to make work quicker and easier. Figure the amount of power you need based on the type of job and air tools used. Know the cubic feet per minute (CFM), such as 5 CFM for small household tools and 10 CFM or more for wrenches or sanders. All air tools have these ratings. Select a gas- or electric-powered engine. Gas gives a higher reliability for frequent use and portability, but consider electric for enclosed areas for its lack of fumes. Pick an air tank based on amount of use time and tools. Large tanks are best for longer use with sanders or grinders and smaller tanks for less time, like wrenches and air hammers. Consider the pump type you need: belt for heavy use or direct-drive for light home use. The quieter belt-drive pump needs periodic oil changes. Buy an inexpensive, small electric portable air compressor for small jobs. These typically operate from a 12-volt power outlet and inflate a 14-inch tire in a few minutes. Get a 150 PSI, 120 volt motor pancake-type air compressor for home use. These light-use models typically carry two air couplers, allowing hook up of two air tools and adequate 25 feet or more air hose. Obtain a larger PSI portable air compressor for bigger jobs, like nailing, with longer continuous use capabilities.

Aug 27, 2008 | Acme Automotive ACMA680CS Typhoon High...

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