Question about Caterpillar Cat Pump Pressure Washer Pump 3SP30G11
Posted by Anonymous on
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Posted on Jan 02, 2017
Sounds like high pressure oil used to actuate the injectors is bypassing one or more injectors internally. There was an issue with this on engines with 7AS / 8YL serial number prefixes. There is no real way of isolating the problem, so the fix would be to replace all six injectors.
Posted on Jul 18, 2009
SOURCE: 11 HP Honda engine won't start.
Ypu could try a canned spray called AERO START which is a chloriform based accelerant. Spray into air intake and start engine. If it doesnt start with this solution then there is a serious problem.
Ensure the spark plug is actually sparking .
Remove it from the socket and place near an earthpoint while still connected and turn motor over. If it sparks then tick that box.
Ensure the spark is strong rub sand paper over the element of the plug to make it bright and shiny
check the lead is in good condition replace if nescessary. A bad lead especially carbon fibre crack inside and become leaky causing poor spark or no spark. If this appears OK then tick that box!
Place a spray of Aerostart inside cylinder and replace plug start engine again. if it fails to respond it will need to be seen by a mechanic
Posted on Jul 22, 2009
Sounds like you may need to remove the valves to check for any dirt etc. Is the machine juddering when on pressure. If so then it will be the valves that just want removing and cleaning
Posted on Jun 16, 2010
Your unloader valve is not wotking, get a diagram of the pump from cat and it will show what parts you need to replace, or check for blockage in the valve.
Posted on Jan 10, 2011
SOURCE: I have got a Devap
yes pump can be taken apart but when you do it will be to your best interest to rebuild with new valves and o rings. Be sure to check the housing and make sure it isn't cracked. If it is cracked throw it away and get a new pump.
Posted on Sep 20, 2012
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