Discussion:
Nissan CPJ02 constant stalling issues

Unit stalls under load, whther hydraulics or tranmssion. Neutral revs fine. Carb has been replaced due to no adjustment left.
Hyd pressures at 1500psi and 2nd pump has been tested in machine.
Engine comp at 150 psi for all 4.

Anyone have any thoughts?
  • Posted 5 May 2011 02:48
  • By mowers
  • joined 29 Jan'10 - 27 messages
  • Alberta, Canada
Showing items 1 - 5 of 5 results.
Does the power unit act like it is under a load. I ran across a case were the trans was pulling an excessive load when engine was just started. Bleed valves in packs backed out.
  • Posted 17 May 2011 10:30
  • By MEngr
  • joined 15 Jan'11 - 247 messages
  • Missouri, United States
Maachine is running on propane. All ignition components and timing are all good.
We ahve adjusted the settings in the dashpot, the only problem is that the engine stalls out before there is a chance to lose vacuum.
We are pretty much going to start some swaptronics and see what we can find...
  • Posted 17 May 2011 07:30
  • By mowers
  • joined 29 Jan'10 - 27 messages
  • Alberta, Canada
The FICD will perform it job when manifold vac is greater then 15 inches Hg. The important part of scoot comments are that engine, fuel and ignition have to be working in harmony with each other. If you don't have the valves adusted properly hot, if you don't have an engine's timing adjusted for the correct fuel, if the PCV valve isn't working correctly, etc. Which I would believe your personel have all looked at. There were two FICD devices offered which include with the vac piping and the delay valve play a part.
  • Posted 12 May 2011 01:38
  • By MEngr
  • joined 15 Jan'11 - 247 messages
  • Missouri, United States
There is a vacuume solenoid on the carb that kicks up the idle and prevents stalling on these units when the steering or hydraulics are deadheaded.

Make sure that the DASHPOT is functioning correctly and adjusted correctly and your problem will be solved. Test the part with a vac pump to make sure the it holds vac. check the vac source from the manifold and make sure that is good.

Common occurance on these more often than not just replacing a worn out or adjusting will fix the problem.

Naturally you will need to make sure that your gov, Idle, and other settings INCLUDING ENGINE TIMING are set correctly.

Typically NOT a Hydraulic or Engine Issue, particularly based on the reading you are indicating.

Good Luck
Scoot (22 Year Nissan Dealer)
  • Posted 12 May 2011 00:42
  • By scoot
  • joined 29 Mar'07 - 8 messages
  • Wisconsin, United States
mowers;
The engine you have is an H20 II. What type of fuel are using?
The compression reading, is it on a hot or cold engine? Did you take wet - hot compression readings? The reading of 150 psig is just 1 point above minimum allowed for this power unit. The maximum reading when it come off the line was 178 psig at 300 rpm.
  • Posted 5 May 2011 12:44
  • By MEngr
  • joined 15 Jan'11 - 247 messages
  • Missouri, United States

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