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Oil Cooler Drain Leak

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Old 08-22-14, 11:01 AM
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Oil Cooler Drain Leak

Replaced all the crush washers for the oil cooler lines but there isn't one for the oil drain in the cooler and it is leaking a bit. Was wondering if it is possible to put own washer there without disturbing the pressure valve spring inside.
Old 08-22-14, 11:21 AM
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Originally Posted by Rotary91
Replaced all the crush washers for the oil cooler lines but there isn't one for the oil drain in the cooler and it is leaking a bit. Was wondering if it is possible to put own washer there without disturbing the pressure valve spring inside.
Theres supposed to be a crush washer for the drain plug
Old 08-22-14, 11:28 AM
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Is there? I thought so but did not see any listed in the repair manual. Guess Ill go buy one.
Old 08-22-14, 12:07 PM
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Looks like there is supposed to be a copper washer on it (labeled 14-8231):
Old 08-22-14, 01:09 PM
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hmm, it's clearly there. What section of the manual is this diagram in? Been looking through cooling and lubrication sections and cannot find one like this.
Old 08-22-14, 02:16 PM
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That's the mazda parts catalogue
Old 08-22-14, 04:10 PM
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cool, thank you, I'll get the part from the dealer.
Old 08-23-14, 01:01 PM
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If you.over tightened that banjo bolt you could crack the bung it goes into and oil will leak out.

Happened to me and had to replace the entire cooler.
Old 08-23-14, 03:30 PM
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Used a torque wrench for all fittings, should be ok, leaked a little bit because of no crush washer.
Old 08-24-14, 02:40 PM
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They just crack easy. I thought mine was leaking due to having a used crush washer , replaced and the leak still didn't go away, tightened it more and the leak got worse.

Be careful
Old 08-24-14, 02:55 PM
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Will keep it in mind, thanks you.
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