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My rebel 60 needed to have the head replaced but now the air keeps blowing out of the air intake. what have I done wrong, I am sure I have replaced the new gaskets correctly but have doubts about the two oblong metal shims.

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SOUNDS LIKE YOU HAVE THE PLATE UPSIDE DOWN OR ROTATED. ALWAYS MARK A CORNER AND WRITE UP ON THE TOP SIDE. KEEP IN MIND THE AIR HAS TO FLOW THRU THE VALVE DOWN INTO THE CYLINDER WHEN PISTON IS GOING DOWN AND THE VALVE MUST CLOSE WHEN THE PISTON IS COMING UP. MAKE SURE YOUR VALVES ARE CLOSING ALL THE WAY.

Posted on Mar 14, 2009

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My air comp:is not building air. 1- head intaking air, and the other Head is blowing out.what is my promblem?


If the heads were taken apart most likely the valve plate was place backwards causing air to come out of the intake. If the valve plate is on correctly, air coming out of intake is caused by faulty gaskets or leaking reed valves. Good luck

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When pressure switch is satisfied and turns off, air continuously blows out the side of the pressure switch


The check valve in the receiver tank is leaking. the check valve is located in the top of the tank where the copper discharge line from the compressor attaches. Shut off the power and bleed all the air from the receiver. Remove the copper line then remove the brass check valve. Once removed look in the check and make sure trash of some type is keeping it open. If trash is the problem clean and install. If not it will need to be replaced.

Dec 12, 2011 | Ingersoll Rand SS5L5 Ir Electric...

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Hitachi Ec 119 compressor will not build pressure beyond 25 pounds; no air is heard leaking after I power down the machine. Is it likely the check valve or pressure switch?


If your compressor keeps running and only builds to 25psi, I would suspect the reed valves, head gaskets or a leak. With the compressor running spray soapy water on all fittings, around the head area and tank components. If no leak is found, remove the air filter and feel for suction at the intake(make sure head is not too hot). If you feel good suction at first then suction is lost after reaching 25 psi, most likely reeds or gaskets (with bad reed valves, sometimes you will actually feel air blowing out of the intake). Good luck

Oct 15, 2011 | Hitachi EC119SA Twin-Stack Air Compressor...

1 Answer

My ssl5l compressor builds pressure real slow now. Rings or Valves? it did get a little warm while sandblasting lately....


Very rare to have problems with rings. Blow-by would produce high pulsating pressure in the crankcase causing oil to blow out the oil filler plug/ dipstick. If normal crank pressure, suspect problem with valves or gaskets. Remove air filter cover and check for air blowing out of intake or very hot head or air discharge tube. Leaking valves or blown gasket will cause low volume/ low pressure and hot discharge air. Remove the in-tank checkvalve and look for carbon deposits /debris build-up. If the checkvalve and the interior or discharge hose are coated with oil deposits /carbon, most likely problem is valve plate/ gaskets /head. Good luck with your repair.

May 03, 2011 | Ingersoll Rand SS5L5 Ir Electric...

1 Answer

I have d55155 and cant get over 60 psi, it never shuts off. how do i tell where the leak, o ring, or teflon tape should go. should the release valve be in a certain position? it seems down all the way


Could be leak or faulty valve plate in head. Use soapy water and spray all fittings including drain valve and pressure regulator. Repair as needed. If no leak found suspect problem with compressor. Try simple test, with compressor running and has reached max pressure (60psi) remove air filter and feel intake for suction. Be carefull could be hot. The suction should fairly strong. If no suction or actually feels like air is blowing out of intake, suspect valve plate. Parts are available at dewalt service center or www.toolpartsdirect.com. Good luck

Sep 22, 2010 | Black & Decker Dewalt #D55155 2HP 4GAL...

1 Answer

AIR PRESSURE PROBLEM


The issue suggests that the head gasket is blown between the two cylinders or the reed valves are not seating or broken. The only other condition that would cause this is a leak. Here are a couple of simple tests. For leak spray soapy water on all connections and fittngs including the pressure regulator and the bottom of the pressure switch while unit is running. Repair as needed. If no leak is found, run compressor untill it reaches 60 or stops increasing and feel for suction at the air filter intake. The best way to check for suction is to remove the air filter and feel for suction at intake port-hole. The suction should be very strong. When valves are leaking it almost feels that the air is blowing out thru intake. If little or no suction, remove head and valveplate and replace parts as needed. Parts are available at www.chpower.com or www.toolpartsdirect.com. Good luck and post again if you have other question.

Jul 28, 2010 | Campbell Hausfeld 5HP 20 Gallon Single...

1 Answer

Drops compressiom from 120-60 psi after 3 new pressure switches


When the pressure switch fails the comperssor will overpressure to the point of safety release at about 150 - 160 psi. It sounds as if your compressor is not producing enough pressure to cycle off at 120 and just keeps running. This happens when air is leaking from fittings or worn cylinder / reed valves. Don't worry, with some simple tests we will find the actual problem. I am assuming that your compressor is oilfree type. If there are leaks the compressor may not reach set pressure. I use soapy water on all connections and on the head/headvalve (remove plastic covers to get to all parts that may leak) while compressor is running. Make repairs as necessary. If still low pressure, while compressor is running and has reached max obtainable pressure (in your case 60 lbs), carefully place finger over intake port hole (remove filter). If the compressor is pumping normally but leaking there will be ample suction at intake and cause the compressor to speed-up when intake is obstructed with finger. If you feel plenty of suction and no visible (soapy water) leaks, then the problem is probably the cylinder /ring is not correctly seating /scratched and air is leaking past cylinder. Make sure that the cylinder /piston ring is properly aligned and that the lip on the vinyl ring is up toward the head. On oilfree compressors you can examine the cylinder by pushing the piston all the way up, then look for scratches neer top of cylinder. If scratched, pressure is leaking past cylinder, install cylinder kit. If you do not feel suction but rather air blowing out of the intake, (do this test when tank has reached 60 psi) then the problem is the headvalve plate/reed valves are leaking. The reeds must seal perfectly on their seats and not be bent or have obstruction. Replace as necessary. If reeds or headgasket is leaking the discharge air will be very hot. Only one other thing to check and that is the intank check valve. Easy to check. Run compressor till you have about 50+ lbs in the tank then unplug compressor. Carefully loosen the inlet hose at checkvalve and listen for air leaking out of tank. (check valve is the brass valve at tank) If leaking replace checkvalve. Use caution when removing head to try and save the gaskets. If you have oil type pump, and no air leaks (soapy water test) suspect reed valves/valve plate. Good luck on your repair and email if you have other question.

May 06, 2009 | Campbell Hausfeld 28 - Gallon Air...

1 Answer

Twin tank air compressor does not pressurize past 65 to 80 psi.


machine inlet valve not sealing in cylinder head valves need to be removed for assesment

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