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Unread 07-26-2013, 07:17 PM   #1
jeepthing5280
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1956 CJ6 
 
Join Date: Feb 2013
Location: littleton, co
Posts: 5
F134 oil filter question....HELP!!!

I just finished a rebuild of my '56 f134. Engine has external canister oil filter. Inlet oil hose comes from under fuel pump to top of oil canister. Lower hose connects bottom of canister to top of timing cover . The problem I have is the oil filter canister is not draining through lower hose. Pulled housing apart and cleaned. Does not appear to be drain holes inside of housing... How the hell does this work??? With lid hold down bolt and lower hose removed, it's a through passage. Plug one end and blow, nothing. Am I overlooking something? Help

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Unread 07-27-2013, 07:11 PM   #2
Fourtrail
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1974 CJ6 
 
Join Date: Dec 2007
Location: Illinois
Posts: 179
There are no drain holes inside of the canister. It will not 'drain' the oil out. The hold down bolt should be hollow with a few holes in it at the top end. Oil comes in through the filter, through the hold down bolt, down the center tube and back into the motor.
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Unread 07-28-2013, 08:37 AM   #3
jeepdaddy2000
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1971 CJ5 
 
Join Date: Jan 2002
Location: Eagle Point Oregon
Posts: 6,237
Oil is pushed into the canister from the galley, pressurizing the canister. This forces the oil through the filter and out the hollow lid bolt to drain over the timing gears.
You should be able to remove the lower hose, and with the engine running, get oil out from the bottom hose (once the canister is full). If you don't, you need to inspect the inlet line for blockage, the bolt to insure it is clear, and the outlet hoes to make sure it hasn't collapsed or gone bad.
Remember, this is a bypass system, it only cleans a small amount of oil at any time, unlike modern systems that force all oil through the filter before it reaches the galleys.
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Unread 07-28-2013, 09:42 AM   #4
Lifesgoodhere
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1997 TJ Wrangler 
 
Join Date: Jul 2008
Location: Waynesboro, Virginia, Virginia
Posts: 1,316
Oil is sucked out of the #2 main bearing if I recall correctly. Every one of the L and F head engines I have rebuilt have more wear on #2 main. The engines oiling system is self contained. The filter though it does help some, actually does very little in the way of removing contaminates from the oil. Now if you plumbed all the ports in a series to the filter much greater filtering will be achieved, at the cost of oil pressure, unless a higher pressure oil pump was installed.
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