JD 6430 fuel filters

[flyonthewall]

May sound like a bit of a strange one, but our JD6430 which we bought second hand seems to have the wrong fuel filters, the secondary one turns out from cross referencing on the net is a 30 micron filter when it should be a 2 micron one, and is the primary one off of a 6930! The six cylinders use larger filters but have the same diameter, just wondering if they'll fit onto the housing or not as presumably the larger they are the better the filtration?

Secondly should the primary or secondary do the filtering for water? Reason I ask is that the wrong one has a glass bowl on it presumably for visually monitoring what the old girl is running on? Glad I looked into this as shes being giving a bit of jip, presumably common rail injectors like to have properly filtered cherry....... Not sure if the damage is done though?

 

[Timbo]

Double check the pipe work for which direction the diesel flows in to the HP pump - you may have it backwards . The Secondary filter is not nearest the HP pump.

 

[Lazy Eric]

First thing I’d do is buy the correct genuine JD filters for that model, and as said above double check the direction of fuel flow, glass bowl should be on primary filter

 

[flyonthewall]

Turns out Timbo was right, followed the pipes through and what I thought was the primary isn't. The primary sits at the front, the secondary behind and that's got a 30 micron filter on.... eek. Primary filter is right but its a 6 cylinder 30 micron, figure bigger filters are better in this case. Correctly ordered secondary filter now! Problem with my local JD dealership is they've got parts wrong in the past because they look up the wrong engine code because only since 2017 does the vin bring up the exact machine, just my experience anyway!

 

[Tractortech]

Now Then..
You could try picking your own parts....

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[pail of ale]

A larger filter of correct micron rating will not filter better but take much longer to plug . I am a big fan .