Cleaning a Transaxle |
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Cleaning a Transaxle |
Larmo63 |
Jul 22 2014, 10:15 PM
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#1
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Advanced Member Group: Members Posts: 4,264 Joined: 3-March 14 From: San Clemente, Ca Member No.: 17,068 Region Association: Southern California |
I'm pulling the trans for the new clutch install, etc. and I'd like to clean all of the black (tar?) gunk off of my transmission. What are the recommendations here? Dip it? Degreaser and manpower? I'm doing new cable, fluid too, so.....?
Ideas? Experience? Is my tranny supposed to have all that black shit all over it? |
worn |
Jul 23 2014, 02:23 PM
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#2
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can't remember Group: Members Posts: 3,156 Joined: 3-June 11 From: Madison, WI Member No.: 13,152 Region Association: Upper MidWest |
I'm pulling the trans for the new clutch install, etc. and I'd like to clean all of the black (tar?) gunk off of my transmission. What are the recommendations here? Dip it? Degreaser and manpower? I'm doing new cable, fluid too, so.....? Ideas? Experience? Is my tranny supposed to have all that black shit all over it? First, I had no problem with oven cleaner. Leave it in a 55 gallon drum for a couple of weeks and it could be a real problem though. The issue is time and quantity. Second, it is hard nasty work. I prefer chlorinated brake cleaner. I work in toxicology and I can tell you it isn't good for you. On the other hand it takes no prisoners and as Mr Sparkle says, it disrespects dirt. Anything oily and cleaner than your gunk will work as a substitute. Detergents act as sort of oils, but have the advantage of bonding to water too. Pure dishwasher soap is good too. I like Dawn. I buy 3-packs. Third. The wire brush. Dremel brushes and bigger spinning brushes actually get the dirt off when the oil is gone. WARNING: spinning wire brushes loose their bristles like arrows. I have pulled a dremel bristle that pierced my nose straight on. Note the proximity to the eyes. I had goggles on. Finally. Paint it! Magnesium very badly wants to combine with oxygen and return to the earth. Note the erosion already present on the case. I have had excellent results with grey epoxy DP-50 covered with clear coat to protect the epoxy from UV. I am doing my third case right now. These trannys are fun to work with and pretty straightforward once you have made some mistakes. (IMG:style_emoticons/default/MDB2.gif) |
Dave_Darling |
Jul 23 2014, 06:11 PM
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#3
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
Finally. Paint it! Magnesium very badly wants to combine with oxygen and return to the earth. IIRC, the alloy used in the trans cases (and in mag case engines) is one of the ones where the metal forms a "sacrificial layer" of oxidation on the outside, and then stops. The layer keeps new metal from being exposed to oxygen, so nothing else oxidizes. So painting is not necessary. In fact, if you like to slop paint on really thick, you might actually impede the cooling of the trans! If it's bad enough, it might even be enough to notice--in racing conditions... (IMG:style_emoticons/default/wink.gif) --DD |
Dr Evil |
Jul 23 2014, 06:25 PM
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#4
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Send me your transmission! Group: Members Posts: 22,999 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Finally. Paint it! Magnesium very badly wants to combine with oxygen and return to the earth. IIRC, the alloy used in the trans cases (and in mag case engines) is one of the ones where the metal forms a "sacrificial layer" of oxidation on the outside, and then stops. The layer keeps new metal from being exposed to oxygen, so nothing else oxidizes. So painting is not necessary. In fact, if you like to slop paint on really thick, you might actually impede the cooling of the trans! If it's bad enough, it might even be enough to notice--in racing conditions... (IMG:style_emoticons/default/wink.gif) --DD I would have to disagree with this. The Mag will suffer exfoliating oxidation as seen in wet and salt road climates. In CA not as bad, but on the East, and other parts of the country you want protection. They covered them from the factory for a reason. |
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