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6K431

OIL PRESSURE RELEASE VALVE COPPER WASHER

The oil pressure relief valve consists of an aluminum plunger with a heavy spring behind it. Access is through the 15/16" domed cap nut beside the dizzy. Once this nut is removed the spring will be visible. The plunger is beneath the spring and will probably be stuck, requiring encouragement to come out. Briefly cranking the engine over will usually free the plunger; in severe cases a thread tap can be screwed in to grip the plunger from the inside to draw it out. Now throw away the aluminum plunger and replace it with a steel ball (BLS916). The harder ball will never become galled or pitted and therefore won't get stuck. This spring (6K858) and ball assembly should give you a steady 75 PSI @ high RPM. To prevent oil leaks, it is always a good idea to replace the copper washer (6K431) under the domed nut.
  • Was £0.36 exc vat
  • Was £0.43 inc vat
  •  
  • Now £0.31 exc vat
  • Now £0.37 inc vat

 In stock

 
help Recommended usage 1 x 6K431 to fit one mini.
See details below of where 6K431 is used in AKM manual.
 
Oil Pump / Pressure Valve, Dipsticks - Qty 1

Oil Pumps, Filters and Coolers - Qty 1

 
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Manuals with this product

Showing 1 to 2 of 2 manual pages
 
 
 
Oil Pump / Pressure Valve, Dipsticks

Engine

Classic Mechanical Parts Manual
Oil Pumps, Filters and Coolers

Engine

Classic Mechanical Parts Manual
 

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