sa 424 electric noise before start

   / sa 424 electric noise before start #1  

Jimbo10

New member
Joined
Apr 19, 2021
Messages
11
Location
VA
Tractor
Yanmar 324 buying process
On my sa424 I get a rythmic clicking/pumping noise when I turn the ignition on or turn it to the heat coils position (before starting the engine). The noise continues until the ignition is turned off or the engine is started.
Difficult to describe the noise and it doesn’t seem to affect anything, but I just wondered whether this is normal ?
To me it seems weird that both “on” and “heat coils” positions act the same with this noise and I don’t feel comfortable leaving the ignition on for longer than a few seconds (e.g for lights without engine running) in case this noise is an indication that something is not right.
it’s always been like that from new, and I’ e got about 80 hours on it without any apparent issues.
Any feedback/experience from other sa owners would be appreciated !
Thanks
 
   / sa 424 electric noise before start #2  
Nothing to worry about it is the 12 volt lift pump that supplies fuel to the FIP (high pressure injection pump)
If it stops clicking then you can start to worry
 
   / sa 424 electric noise before start
  • Thread Starter
#3  
Thankyou !!
 

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