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  #1  
Old 01-29-2002, 08:17 PM
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Drain plug on E320 auto tranny

When changing the ATF on my '96 E320, I spotted a small drain plug with socket head. Having never enjoyed the experience of removing an oil pan while it's still full of oil, I gingerly loosened and removed this plug. The oil drained out, after which I proceeded to remove the pan, change the filter, and re-install the pan with a new gasket. The little drain plug seemed flimsy to me, though, almost as if it wasn't designed for regular removal. I reassembled and inspected several times for leaks and never found any. Now, 25K miles later, I noticed a wet spot spreading from around the little plug -- as if it's seeping a bit. It's not enough to drop on the floor, but enough to make a large damp circle around the plug. I'm going to change it again soon. Should I replace the plug? Is there a replacement gasket for it? RTV it? Did I do a bad thing? Thanks,
John
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Old 01-29-2002, 08:45 PM
engatwork's Avatar
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Always replace the gasket on this plug. If there is no gasket, install a new one - I think it is referred to as a crush ring.
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Old 01-29-2002, 09:50 PM
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You also may want to consider draining the torque converter in order to do a more complete change.
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  #4  
Old 01-30-2002, 10:31 AM
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Thanks, guys! I'll get the crush ring for that little plug when I pick up my parts. I'd also love to drain the torque converter if I knew how. Where do I find the plug for that?
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  #5  
Old 01-30-2002, 01:41 PM
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It's easy to spot it if you rotate the engine slowly by hand while eyeballing the small opening in the bottom of the transmissioncase.
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  #6  
Old 01-30-2002, 03:13 PM
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Thank you. I'll do that. Any idea of how much the converter holds? Just so I have enough fluid on hand!
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