Surging on an LA175

   / Surging on an LA175
  • Thread Starter
#11  
Thanks tkcomer
 
   / Surging on an LA175 #12  
Oops, forgot about this. It was the vacuum line for the fuel pump.
 
   / Surging on an LA175
  • Thread Starter
#13  
I gotta go find this “vacuum line”. Sounds like my culprit. Thx.
 
   / Surging on an LA175
  • Thread Starter
#14  
Is this what you're referring to?
 

Attachments

  • Vent hose.jpg
    Vent hose.jpg
    292.7 KB · Views: 151
   / Surging on an LA175 #15  
That looks different from mine but that one line with the elbow is the vacuum line.
 
   / Surging on an LA175 #16  
It's not a vacuum line, it is a pulse line.

The pulses from the crankcase cause the diaphragm in the pump to move back and forth and that action combined with a couple of check valves cause the fuel to be pump thru the part.
 

Tractor & Equipment Auctions

72in Hydraulic Root Grapple Skid Steer Attachment (A56860)
72in Hydraulic...
GOODYEAR SET OF 12.4/11-24 TIRES WITH 5 BOLT HUB WHEELS (80% TREAD) (A55315)
GOODYEAR SET OF...
Wacker Neuson RD12 (A57148)
Wacker Neuson RD12...
2020 John Deere 1025R MFWD Compact Tractor (A56438)
2020 John Deere...
New/Unused AGT Industrial SDA-140T Track Loader (A57453)
New/Unused AGT...
1999 International 5000 SFA Day Cab Truck, VIN # 1HTTWADR6XJ004085 (A57453)
1999 International...
 
Top