Ingersol rand model SS3-E runs but does not build any air pressure. Air just blows out the intake filter.

Has Pressure Switch Issues - About Air Compressors

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Many times folks think that they have a pressure switch problem since air leaks out the ... The pressure switch does not kick off when the compressor has reached itsmaximum pressure. ... compressor sits humming and trying to turn the motor insteadof cutting out. It is a ... I have an old, about 20 year old, Ingersoll-rand T21.Missing: idle

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The air compressor motor and/or engine will get hot while in operation. .... enters thru the intake ?lter and the intake valve on the down stroke of the piston. .... My gas unit builds pressure but instead of idling the engine dies? 0 Check ... most single stage compressors only reach maximum pressure of 125 to 135 PSI. A slight.

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if your saying it wont recover from idle down mode back to full speed , this might be the IR fuel pump/regulator problem (a pressure gauge will need to be added to verify this ) , if so save your money go with an aftermarket pump it'll last longer

You don't have enough air pressure. Let the compressor build up more air pressure, and check to see if you have an inline pressure regulator (like you might have for a paint shop). If you can, bypass the pressure regulator to use full compressor pressure.

It sounds like your pressure switch is not set correctly. It is possible it is set too high for the compressor you have.

I don't know if your unit is exposed to the direct sun light if it is I suggest you create some shade , or if this this unit is enclosed is not getting enough air flow to keep cool.
( this air flow helps to stabilized the sensor that stop and start the compressor )

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.

Air leaking back from tank check valve or leaking reed valves can make a squeaking or vibrating noise. With pressure in tank remove fitting at the tank check valve and test for leak with soapy water. If leaking, replace with generic valve. If no leak, reinstall fitting and let all the air out of the tank. With empty tank and air filter removed, start compressor and feel strength of suction at intake. When you hear the squeak retest strength of suction at intake and compare. If reed valves are leaking, you will feel less suction as tank pressure increases, and in severe leaking valves, you will actually feel air blowing out of intake. Repair/replace reeds and /or leaking gaskets in head of compressor. Good luck

3 stage? It sounds like the first stage has a leaking valve, possibly second stage also - this would explain both the high temperature in stage 1 and the poor pressure from the final stage. Take a look at page 6 of the following link. This is the typical intake and outlet valve diagram for each stage. Valves #2 are intake valves, and valves #6 and 7 are discharge valves. They all perform like check valves, each valve allowing air flow in only one direction. It sounds like your valves are leaking between 1st and 2nd stages. Possibly debris in the valves, or valves damaged. Try taking air intake filter off and check for damage to air filter and debris at intake. Also try removing valve plates and check for debris/damaged valves on first and second stages.

http://www.irservicenet.com/filestorage/SCD-749_.pdf

if it is lifting both valves I would say that the pressure switch (regulator as you call it) is defective, if you try to shut it off using the manual switch and it keeps running, I would say that the switch is welded shut. if it does not shut off by 125 psi then it is faulty. The pressure switch is what controls the motor in response to pressure in the tank.

Anything you need, can be found on amazon, click here and take a look: Amazon com ingersol rand air compressor parts. Wish you best of luck. John