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Leak O Matic trans |
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InRogue
AMC Nut Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Posted: Sep/23/2018 at 3:25pm |
Wow, just started driving my new arrival, and the trans is leaking like a ....... The strange thing is it's all over the side of the frame rail floor board passenger side. I originally thought it was the dip stick as it was under the hood. Could be the lower dipstick tube or pan gasket, only leaks after I drive it. It appears it's happening below the pan, the converter looks dry...vent where's it at? I also read somewhere TSM maybe, that some thing could be too tight out of adjustment? Help!
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Greyhounds_AMX
AMC Addicted Joined: Nov/14/2009 Location: Kansas City Status: Offline Points: 1268 |
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Whatisit?
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1968 AMX 390 w/T5
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InRogue
AMC Nut Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Flash O Matic
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Offline Points: 6882 |
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If you read some of Frana's posts you will get a wealth of information on this transmission. My guess would be the fluid id overfilled and blowing out the vent on the top of the transmission case.
Overfilling and vent leaking seems to be a common condition.
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pacerman
Supporter of TheAMCForum Joined: Jul/03/2007 Location: United States Status: Offline Points: 9057 |
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They also leak at the shifter shaft seal (driver side of the tranny above the pan rail) if the seal is worn or drived out. It is basically an O-ring. They can leak at the front and rear shaft seals too, plus of course at the pan gasket. Joe
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Happiness is making something out of nothing.
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7TZ
AMC Nut Joined: Aug/16/2010 Location: California Status: Offline Points: 264 |
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I dont know if the Flash O Matic has a kickdown switch, but that was the leaking problem on my M-11. That stupid tiny O ring. Replaced it and no more leaks.
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1969 AMX
2005 350Z 1970 240Z |
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InRogue
AMC Nut Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Like I said it's on the passenger side, the fluid is low so it can't be the vent. The converter area is dry....its got to be were the dipstick enters the pan or pan gasket I've ordered a new trans filter and gasket and pressure washed to maybe help with location of the leak
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vinny
Supporter of TheAMCForum Joined: Jan/05/2012 Location: Calgary Status: Offline Points: 2837 |
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By flash-0-matic I assume you mean the one with an aluminum case most likely behind a six cylinder.
Did you check that the nut at the pan which holds the dip stick filler tube is tight?
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InRogue
AMC Nut Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Yep and yep it's tight
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InRogue
AMC Nut Joined: Aug/20/2018 Location: Florida Status: Offline Points: 362 |
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Ok....I dropped the pan, and got to looking at the dip stick tube, looked like it had a crack at the bottom where it makes the bend on the top side, so I welded it up, made a pan gasket and replaced fluid. I took it for a drive to warm it up and check fluid...added to the mark, then......looked under car and there's a puddle on the drivers side :0 Looks like it coming from above the shift linkage, Okay where's the vent located? Or maybe I just over filled it?
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