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water in transmission oil |
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RedSmith 
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Joined: July-20-2015 Location: Asheville, NC Status: Offline Points: 30 |
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 Topic: water in transmission oilPosted: August-10-2020 at 8:41am |
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Took on water during a rough day, didn't notice but the transmission dip stick was out. Got the "milkshake" foam all over and the transmission slipped and skipped. Boat is out of the water. What is the proper procedure to flush the transmission? Thank you. 2988 Nautique, 351.
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8122pbrainard
Grand Poobah 
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-10-2020 at 8:52am |
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Suck/fill/run and suck/fill/run again muiltiple times untill the fluid is clear.
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-10-2020 at 9:01am |
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Arther,
Hopefully there's no trans damage. How long did you allow it to slip? Was the trans hot to the touch? The danger with slippage is warped clutch pack plates.
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RedSmith
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Joined: July-20-2015 Location: Asheville, NC Status: Offline Points: 30 |
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Posted: August-10-2020 at 9:47am |
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Probably longer than I should have. But, not days, Maybe an hour tops, but a bit at high revs. Mostly driving to the take out at very low rpms How do I "flush" and make sure the water is out? Thanks for your response.
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RedSmith
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Posted: August-10-2020 at 9:49am |
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Do I pump the fluid out, or is there a drain plug?
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8122pbrainard
Grand Poobah
Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-10-2020 at 9:51am |
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You don't "flush" By removing the fluid and refilling multiple times, you will get the water out. ATF has moisture absorbsion additives.
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Jonny Quest
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Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 2974 |
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Posted: August-10-2020 at 1:54pm |
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Use a fluid extractor. Mityvac. H.F. Etc. use copper tube at the end of the suction hose that inserts into the trans.
JQ
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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slmskrs
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Joined: January-03-2012 Location: SF bay area, CA Status: Offline Points: 522 |
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Posted: August-10-2020 at 3:29pm |
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Metal brake line works well to get down to the bottom. You have to do it several times due to the cooler and lines. You might be able to take the bottom one off to help drain the cooler.
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Gordon '97 Ski Nautique, GT40
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RedSmith wrote: