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Leak O Matic trans |
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FSJunkie 
AMC Addicted 
Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4742 |
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 Posted: Sep/30/2018 at 2:28am |
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It's not leaking. It is self-undercoating. It was optional. You could order factory undercoating, dealer undercoating, or self undercoating. My T-10 does that. It leaks a quart every 1000 miles, which is a major problem on a transmission that only holds 2 quarts and that you have to jack the car up and crawl underneath to fill. Makes long road trips really interesting. I need to rebuild it.
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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InRogue
AMC Nut
Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Posted: Oct/01/2018 at 2:31pm |
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So here's the deal.....why it's leaking here I don't know, this puddle is about 1 minute after shutting down. So it's coming from just above that ear on the transmission above the linkage???? A bullet hole maybe :)
 
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InRogue
AMC Nut
Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Posted: Oct/01/2018 at 2:33pm |
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To keep my sanity I'll have to post a positive picture....car looks good even if it smokes down the road.
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LakesideRamblin
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Joined: Dec/21/2015 Location: So. California Status: Offline Points: 2694 |
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Posted: Oct/01/2018 at 3:47pm |
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Sorry about the tranny. Very nice looking '66!
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LakesideRamblin
69 Rambler 360 73 Javelin 360 "If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month." T. Roosevelt |
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farna
Supporter of TheAMCForum 
Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Offline Points: 19686 |
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Posted: Oct/02/2018 at 6:43am |
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Looks like it might be leaking from the vent on top of the trans. Check the fluid in neutral, not park. You might try running up to a quart low also.
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Frank Swygert
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InRogue
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Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Posted: Oct/02/2018 at 9:11am |
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I wish I had a full view picture of the trans to see where the vent is. I checked the fluid in park, I'll check it in neutral next. I can't drive it like this
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InRogue
AMC Nut
Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Posted: Oct/02/2018 at 5:27pm |
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Okay found the vent...yep right above that ear on the transmission, that's where it's leaking from.
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pacerman
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Joined: Jul/03/2007 Location: United States Status: Offline Points: 9060 |
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Posted: Oct/02/2018 at 5:54pm |
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Did not read the whole thread so I don't know if you have drained and refilled the tranny. That tranny has a capacity of 8 quarts with the torque converter. If you have not counted 8 quarts on a fill (starting from a completely empty tranny and torque converter) you really don't know how much fluid is in there. Farna's suggestion (drain one quart from the tranny and observe for a leak) sounds reasonable to me.
But if you have the correct oil level the 66 TSM lists the following causes or corrective actionsfor "oil out the vent" Check oil level Check dip stick length Governor inspection Oil tube missing or damaged Valve body attaching bolts missing or loose (damaged) Sealing rings missing or broken Rear pump Breather babble missing What you are looking for assuming the oil level correct is anything that could create extraneous pressure inside the tranny. Joe |
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Happiness is making something out of nothing.
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