Need help rebuild little control valve

   / Need help rebuild little control valve #11  
Most spool valves do not have "seals", the use very close tolerances between the valve body and the spool. The best you can do at this point is to polish the spool to remove the rust.
 
   / Need help rebuild little control valve #12  
helpful tips.
 
Last edited:
   / Need help rebuild little control valve #13  
Regluar spool valves like mono block valves and stack valves DO have spool seals between outside and the return core, to prevent external leakage from the low pressure return core...
OC_valve_spool_O_rings.jpg


If spool valve are built into tractor transmission etc, no seals needed if oil leaks to the sump....
 
   / Need help rebuild little control valve #14  
If spool valve are built into tractor transmission etc, no seals needed if oil leaks to the sump....

Thought I was alone thinking this....:thumbsup:
 
   / Need help rebuild little control valve
  • Thread Starter
#16  
I didn't find anything that looked like a seal or "o" ring. Again, this is an antique and the installation instructions say some "small drops of oil" is normal. Here is the disassembled valve. I'm trying to locate the two small "return" springs. We don't have a local hardware store, so shopping for them when I'm visiting towns that do.
 

Attachments

  • valveparts.jpg
    valveparts.jpg
    166.2 KB · Views: 142

Tractor & Equipment Auctions

2010 John Deere TX Gator 4x4 Utility Cart (A52377)
2010 John Deere TX...
2016 Ford F-250 4x4 Reading Service Truck (A55852)
2016 Ford F-250...
2021 CASE IH Steiger 540 AFS Connect QuadTrac Tractor (A53485)
2021 CASE IH...
2025 JMR 36in Bucket Mini Skid Steer Attachment (A55851)
2025 JMR 36in...
1991 Cummins NT-855-G5 250kW 3-Phase Diesel Generator (A55851)
1991 Cummins...
2018 RAM 2500 SERVICE TRUCK (INOPERABLE) (A53843)
2018 RAM 2500...
 
Top