EH63 ROBINS SUBARU ENGINE HIGH IDLE

   / EH63 ROBINS SUBARU ENGINE HIGH IDLE #1  

budyjim

New member
Joined
Oct 31, 2018
Messages
21
Tractor
john deere
I have an EH63 in a 2004 Polaris side by side that idles high (approximately 1600 to 1800 rpm). I could live with my mom that RPM, but at that engine speed, it grinds the transmission when shifting. Approximately 1000 hours on machine.

When i adjust the throttle idle screw lower the engine dies.

Is this a common issue with this engine, the engine runs strong otherwise, no smoke.

I am thinking possibly governor or valves, but any advise or opinions would be appreciated.
 
   / EH63 ROBINS SUBARU ENGINE HIGH IDLE #2  
R u sure your adjusting the low idle screw.??
It should not shut off..
 
   / EH63 ROBINS SUBARU ENGINE HIGH IDLE
  • Thread Starter
#3  
The only two adjustment screws I detect are the drain screw (part 18 & 19) and throttle adjustment (part number 22 and 23).

When I lower the throttle adjustment, it just dies. This is not a fuel air adjustment.

The main jet (part 4 ) and slow jet (part 17). Are clean and unobstructed.

More details:

New spark plugs

I bypassed the fuel pump and gravity fed fuel to confirm was not fuel pump.

Other than governor or valves, may also be the gap of the ignition coils to the flywheel.

For this application I have to pull the engine to remove the shroud, so am trying to diagnose it best I can before hand.
 

Attachments

  • A017EEEF-4635-4E4D-B101-A8EBB76CB780.png
    A017EEEF-4635-4E4D-B101-A8EBB76CB780.png
    696.9 KB · Views: 86
  • 8C9D7AA5-CA22-42CD-9850-765165576E51.png
    8C9D7AA5-CA22-42CD-9850-765165576E51.png
    692.1 KB · Views: 88

Tractor & Equipment Auctions

2013 CHEVROLET SILVERADO 2500HD (A50854)
2013 CHEVROLET...
2014 Brent 1596T Dual Auger Grain Cart (A50657)
2014 Brent 1596T...
2016 PETERBILT 579 TANDEM AXLE SLEEPER (A51219)
2016 PETERBILT 579...
2017 MACK CHU613 TANDEM AXLE SLEEPER (A51222)
2017 MACK CHU613...
TOOLBOX/FUEL TANK COMBO (A50854)
TOOLBOX/FUEL TANK...
2014 Doyle Dry Fertilizer Tender Trailer - Kubota Diesel, 3 Stainless Compartments, Side Discharge (A51039)
2014 Doyle Dry...
 
Top