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Craftsman model 921.166370 broken reed valve - Craftsman Air Tools & Compressors

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6ya6ya
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Posted on Jan 02, 2017

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  • 1388 Answers

SOURCE: coleman compressor no build up of pressure

Parts for coleman are available at www.mastertoolrepair.com your compressor is listed as L0502710. If however you like to tinker, you can make a pretty good reed valve out of aluminum can material or other (any ideas?). It is fairly easy to cut, does not last as long as factory stainless steel, but for short term, why not? Good Luck

Posted on Jan 10, 2009

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  • 54 Answers

SOURCE: 3gal craftsman horizontal compressor wont build pressure

Without knowing specifics of your unit, If there are three reeds, then two are probably for intake and one for exhaust. Intake reeds should be on the piston side of the valve plate, discharge reed should be on the head side.

There should be a divider in the head side to separate the inlet from the discharge. Make sure the valve plate is turned so that the air from the air filter side goes to the side with the intake valves, and the air from the discharge valve should go to the side with the pipe to the tank.

Posted on Oct 22, 2009

mrhappyface
  • 205 Answers

SOURCE: I have a Craftsman compressor

you must have wired the new pressure switch incorrectly .when the pressure switch opens it will release the head pressure so your compressor must be running with the pressure switch contacts open should be 4 connections 2 marked motor which is from your compressor and 2 marked line which is your power coming in

Posted on Jun 15, 2011

H2_Brad
  • 425 Answers

SOURCE: I have a craftsman air

It sounds like a bad gasket. Either the one between the valve plates or the one between the head and top valve plate. The top gasket is the most common one that fails. If the middle of the gasket is broken, where it separates the intake from the exhaust, you will get symptoms just as you described. Will only build up a small amount of pressure. Here is a link to look at the parts diagram and to order parts from.

http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Air-compressor-Parts/Model-921153101/0247/0703000/50037535/00001?blt=06&prst=&shdMod=

Posted on Jul 18, 2011

H2_Brad
  • 425 Answers

SOURCE: I have a craftsman dual tank air compressor and it

Were the gaskets in fine shape? If you get a tear in the middle of the head or valve plate gasket, where it separates the intake and exhaust, then the pump will only build up pressure to the range you have or sometimes up to only the 50psi range.

Another thing to check is if it has a one way check valve that goes into the tank where the pump line/hose feeds from the compressor pump into the tank. Many of the check valves use a simple plastic cup and a spring. If they get stuck open then that will also make it not build up pressure.

The other part I can think of is the control box but usually when they fail they either won't turn on the unit or they will leak air.

The last thing to check would be the piston ring(s) and cylinder/sleeve. The oil less compressors will wear these items out far more often then an oil style will. When the oil less piston and sleeve get scored up (from dirt ingestion) then they also will not build up much pressure.

Posted on Jul 20, 2011

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1 Answer

Craftsman air compressor will not build pressure


common problems are
failed poppet valves or reed valves
broken springs for poppet valves
failed non return valve in the pipe to the tank
pull the head/s and check the poppet valves or reed valves

Nov 28, 2016 | Craftsman Air Tools & Compressors

1 Answer

New AC-0032 valve plates don't work on the existing heads of my Craftsman 919.152.930 compressor. Is there a way to use the existing head or is there a different head which will work?


Your old valve plate can be repaired. Usually only one or two reeds break. Carefully trim off broken reed exposing port hole. Tap hole with fine thread and make plug with proper matching bolt. plug should be same thickness as plate. Thread in plug using thread locker then ping in several spots. Works without loss of volume. You could also replace the reeds. Good luck..

Oct 13, 2015 | Craftsman Air Tools & Compressors

1 Answer

Air compressor model no. 921.153101 blowing air trough air cleaner


If you get air movement out of the air cleaner and it only compresses air to 25psi, you have bent or broken reed valves in the head. Take the head off the cylinder and inspect the valve plates and reed valves. This is a Craftsman compressor so you'll most likely have to get parts through Sears at www.searspartsdirect.com. For best results replace everything between the head and cylinder; gaskets, valve plates and reed valves.

Oct 03, 2012 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

1 Answer

Air compressor model no. 921.153101 blowing air trough air cleaner


Sounds to me like bad (or dirty) reed valves. Carbon buildup on the reed valves can cause poor seating of the valves. Sears has an Owner's Manual available at http://www.managemylife.com/mmh/owner_manuals/15651/CRAFTSMAN-Air-compressor-L0512094?brand_name_search=921.153101 that has a parts listing for the unit.

Oct 03, 2012 | Craftsman Air Tools & Compressors

1 Answer

I have a craftsman air compressor 3 gal. 1 HP model#921.153101 the gauges go to about 45 and stop but the unit keeps running.I've checked for leaks there are none I left the air in the tank over night...


It sounds like a bad gasket. Either the one between the valve plates or the one between the head and top valve plate. The top gasket is the most common one that fails. If the middle of the gasket is broken, where it separates the intake from the exhaust, you will get symptoms just as you described. Will only build up a small amount of pressure. Here is a link to look at the parts diagram and to order parts from.

http://www.searspartsdirect.com/partsdirect/part-model/Craftsman-Parts/Air-compressor-Parts/Model-921153101/0247/0703000/50037535/00001?blt=06&prst=&shdMod=

Jul 15, 2011 | Craftsman 3 gal. Air Compressor, 1 hp,...

1 Answer

Compressor will run, but only builds to 20 lb pressure. Line to tank gets hot.


Very hot air is an indication of leaking /broken head gasket or reed valve. Before you remove any parts, with compressor running, check all fittings for leaks with soapy water. If no leaks, remove head and examine parts. If reed valve is broken replace as needed or do creative repair. Some valve plates have multiple reeds and only one reed is broken. Depending on your skill level, you can thread the hole and seal with piece of bolt (finished repair must not be any thicker than the plate). Good luck

Jan 29, 2011 | Craftsman 1 hp Air Compressor, 4 gal. -...

1 Answer

Compressor will run but not build pressure. Air is coming out of compressor inlet filter. What could be my problem


You have a broken reed valve(s) in the pump. Without knowing your model number I don't know if it's repairable nor can I recommend a replacement part. If the head is removable, take it off and check the valve plate under it. There should be two or more reeds on each side. If they are chipped or broken or warped from heat they won't seal the valve holes and the system can't build pressure.

Jan 05, 2011 | Craftsman 1 Hp, 4 Gal. Air Compressor

1 Answer

I have a Craftsman 919.165610 2 stage oil free air compressor. It will not build pressure? I have replaced the check valve, checked the filter and still no luck? Help


Problem sounds like valve plate /reed valves or worn cylinder /vinyl ring. Easy to check, push piston to top position and examine cylinder neer top looking for scratches. If scratched, most likely vinyl piston ring/s are worn and allowing pressure to leak past. If cylinders look good /shiney all the way up to top, remove head/s and examine reed plate/s for missing/broken reeds and or torn gasket/s. If your reed plate is missing one reed and your are good at being creative, you can seal individual hole by threading and plugging with thin piece of bolt. Good luck and good holidays

Dec 30, 2010 | Craftsman 25 gal Air Compressor 3 12 hp...

1 Answer

Will not build any pressure


Like most all compressors, these cheaper models have a cheap reed valve type heads on them, the reeds often break off causing sudden loss in compressor capacity, in some cases the rings may stick due to incorrect lubrication or from piston damage due to ingesting broken valve components that embed into the top of the piston and crush the ring grooves.

Dec 13, 2009 | Craftsman Air Tools & Compressors

1 Answer

WILL NOT BUILD PRESSURE


Many craftsman compressor are built by champbell hausfeld using a dry type of cylinder and piston (no oil, no crankcase). If dry type, check for worn cylinder and piston ring. Pieces of the vinyl ring can jamb between the reed valves in the head causing air to escape from the intake. If your compressor has a crankcase and oil, check for broken reed valves in head. Spray soap solution on hoses, checkvalve, drainvalve, and fittings to check for leaks. Most likely problem is reed valves broken or open. Parts are available from sears or match parts to chpower.com. enjoy

Nov 26, 2008 | Craftsman 3 gal. Air Compressor, 1.5 hp,...

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