What part/kit do I need to fix this oil pump leak - Defender Source
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  #1  
Old January 23rd, 2011, 11:51 AM
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Charles Galpin
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What part/kit do I need to fix this oil pump leak

This is a 3.9 from a 94/95 disco. Appears to be leaking from the hole with the circlip.

What part or kit do I need to fix this?

thanks,
charles
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  #2  
Old January 23rd, 2011, 12:30 PM
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jim pendleton
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Should just need to match an O-ring up to the one that is leaking. It is a thin O-ring and metric if memory serves me right.
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Old January 23rd, 2011, 07:17 PM
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Charles Galpin
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Thanks Jim!

I have an assorted set of O-rings so I'll open it up and find a good match.

Just wanted to make sure I didn't need to make yet another parts order. Seems every time I go to do something I realize I need more parts. Yesterday I realized I am missing the pilot bush so couldn't install the darn thing! Made a parts order yesterday, and then saw this today. Grr
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Old January 23rd, 2011, 09:02 PM
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sal gorriceta
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Charles,

I think I have some o-rings that you need. Pm if you need one.

Sal
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Old January 24th, 2011, 07:47 AM
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is that a serp front cover? Whats up with that FRAM filter?
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Old January 24th, 2011, 07:49 AM
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Charles Galpin
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Yes Serp belt setup is standard on discos of this vintage. That's the last filter used by the PO. Not getting replaced until the engine is in the truck.
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Old January 24th, 2011, 10:03 AM
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in my old bmw, there was a spring loaded valve assembly behind the same type of cover plate on my oil filter housing...be careful when pulling that circlip out!
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Old January 24th, 2011, 12:58 PM
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Quote:
Originally Posted by cgalpin View Post
Yes Serp belt setup is standard on discos of this vintage. That's the last filter used by the PO. Not getting replaced until the engine is in the truck.
I know of one instance where that clip failed and was potentially a disaster, you may have averted a similar incident fixing this.
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Old January 24th, 2011, 01:12 PM
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Charles Galpin
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Sal, I sent you an email - it's indeed flat like Pendy said, and I don't have anything like it. Mine is hard and brittle (broke it when removing it).

There is/was a spring behind it, but I think because of the worn o-ring the cap was pressed against the side and didn't come out until I centered it.

Yes, I'm glad I noticed it Phillip!
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  #10  
Old January 24th, 2011, 05:27 PM
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That's the pressure relief valve. Why you got the cap/o-ring off you might as well pull the valve out and clean it real well and make sure it slides freely and reinstall. They like to stick and cause your oil pressure to do crazy stuff.
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