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External Filter Problem And Fix


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#1 milkdud OFFLINE  

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Posted September 06, 2013 - 01:29 PM

My ford LGT 145 has an external screw on oil filter for the hydro tranny.

 

I put a new WIX 51307 back on it when I changed the fluid.  I had nothing but problems with the new filter leaking.  It would come loose leak etc.  Finally I replaced it with a FRAM PH16 thinking it was a flook.

 

About 5 minutes into running it the FRAM PH16 was loose.  HMMM I tighten it back up.  5 more min its leaking like crazy.  

 

I look close and its leaking out of the seal crimp of the filter and the filter looks like it expanded back.  Further looking both filters had the anti drain back valves ripped.

 

Can you guess what is wrong???

 

The previous owner hooked up the lines backwards and it was building pressure against the antidrainback balve and it actually split the FRAM PH 16.

 

Now I switched the lines and am off to buy my 3rd filter.

 

If you look at my attachment the FRAM is all puffed up and pulled away from the base. Notice the no paint line.  Lucky it didnt blow harder. 

 

Crazy!
CONRAD

Attached Thumbnails

  • FILTER2.jpg
  • blownfilter.jpg

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#2 JDBrian OFFLINE  

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Posted September 06, 2013 - 05:05 PM

I'm not familiar with the hydro system on those tractors but I know that having pressure like that in the filter line is not good and they aren't designed to hold that kind of pressure. If it had of burst it would have made a big mess in a hurry.


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#3 HDWildBill OFFLINE  

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Posted September 06, 2013 - 05:15 PM

Makes ya wonder how the original filter held.



#4 Canawler OFFLINE  

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Posted September 06, 2013 - 06:31 PM

The Orange Can of Death strikes again.

At least the Wix didn't balloon and split.

 

I was under the impression that the return line wasn't supposed to be under that much pressure.


Edited by Canawler, September 06, 2013 - 06:32 PM.


#5 milkdud OFFLINE  

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Posted September 06, 2013 - 10:24 PM

The hoses that run up to the external filter are actually hydraulic hoses.  The FRAM is rated for 275 PSI I think.  The WIX is 300 PSI. 

 

The PO just mixed up the hoses when they did something in there.  Oil can only flow one direction thru a filter.  If  you try to push it backwards the anti back flow valve closes off and it builds pressure until the filter blows or the valve splits. 

 

The Wix has a thicker can for sure.  But this was not a filter issue.  Just a installation issue.

 

I wish i had the old filter still to see if the ADB valve was blown too.

 

Conrad



#6 JDBrian OFFLINE  

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Posted September 07, 2013 - 06:42 AM

OK, now I understand what happened. The filter is external and the lines being reversed blocked the flow. That much pressure on the return line could have caused other problems inside the hydro! 



#7 shorty ONLINE  

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Posted September 07, 2013 - 07:08 AM

That filter looked to be close to splitting. Good to hear you got it figured out.



#8 NUTNDUN OFFLINE  

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Posted September 07, 2013 - 07:09 AM

Glad you got it figured out. Usually they have different connectors on lines that could be swapped and shouldn't. 






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