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: 136

Tractor & Equipment Auctions

2018 PETERBILT 579 SLEEPER (A51222)
2018 PETERBILT 579...
Hyster H225E (A47384)
Hyster H225E (A47384)
SHOP MADE  MANIFOLD TRAILER (A50854)
SHOP MADE...
2018 JOHN DEERE 204L WHEEL LOADER (A51242)
2018 JOHN DEERE...
New Kivel Single Skidloader Spear (A50774)
New Kivel Single...
2018 JLG 3246ES 32ft Electric Scissor Lift (A50322)
2018 JLG 3246ES...
 
Top