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| ATF change details http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=39932 |
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| Author: | rlanda [ Fri Feb 06, 2009 10:40 am ] |
| Post subject: | ATF change details |
I'm about to change the ATF in my KJ for the first time. I've read almost every thread in this forum about ATF change and think I got the idea very clear. Only some issues I need help about and hope somebody can share his experience or advice: - In other forums is said that after removing the filter, we have to be sure to remove a gasket that usually stays in the transmission, but that information is specific for the 45RFE trans. Mine is 42RLE, should I have to look for a gasket to remove? - About cleaning the pan, someone mentions to do it with brake cleaner, but the procedure is not clear for me. Could someone help with this please? - An last, about the RTV, exactly how much time do I have after applying it and before placing the pan in place?. Do I have to hurry once started to apply it? Any help will be greatly appreciated. |
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| Author: | JJsTJ [ Fri Feb 06, 2009 10:59 am ] |
| Post subject: | |
Quote: - In other forums is said that after removing the filter, we have to be sure to remove a gasket that usually stays in the transmission, but that information is specific for the 45RFE trans. Mine is 42RLE, should I have to look for a gasket to remove? *Make sure that there is no old RTV or gasket material on the pan mating surfaces before installing the new rtv or gasket. (I recommend finding a kit w/ gasket or buying a pan gasket And putting a Thin layer of rtv on both sides of it before installation for the best, leakproof seal) *Also, Make sure that the Filter O-ring/seal is removed when you pull the filter off. Your kit should include a new one to install on teh new filter, you don't want the old one in the way when putting the new filter up in place. Quote: - About cleaning the pan, someone mentions to do it with brake cleaner, but the procedure is not clear for me. Could someone help with this please? *After thougroughly cleaning off old rtv and/or gasket material from the pan and mating surface of the trans, spray the pan w/ brake cleaner to clean it of any old fluid and clean off the magnet. Wipe it dry before putting the new gasket and/or rtv in place. Quote: - An last, about the RTV, exactly how much time do I have after applying it and before placing the pan in place?.
Do I have to hurry once started to apply it? *You have several minutes After application to work w/ it. I apply a small bead to the pan, I spread it across the perimeter surface of the pan making a thin layer, I then lay down the new gasket and repeat the process on the gasket itself. Then I let the rtv skin over, takes a few minutes or so and then you install it, tighten bolts finger tight w/ just a socket and extension, then go back over the bolts alternating sides of the pan as I work my way around the pan. I use a 1/4" drive ratchet for this and just make them hand tight, I don't worry about any torque specs, etc. since after all these years of doing it I have developed a feel for it. Just don't go crazy and break a bolt or strip the trans case going too tight oh or squish out the gasket. If you have a torque spec and wrench, use it if you feel you need to. fwiw, I have used the above process as well as Just using rtv using a slightly thicker layer of rtv spread around the permiter of the pan and Never a leak either way on Many vehicles over the years both my own, on customers cars and friends and family cars. I also swear by Permatex Ultra Copper for this and many other uses. I have seen leaks on other parts w/ other rtv but Never when I have used Ultra Copper. (don't know why, just my experience) Hope some of that helps. |
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| Author: | rlanda [ Sat Feb 07, 2009 1:26 pm ] |
| Post subject: | |
Wow, thanks a lot JJsKJ!! Now it's more than clear for me. Today is the day, so I hope every thing goes fine. I have the torque specs and a torque wrench, so think I won't have any problem with that. About RTV, couldn't find Permatex here, then I'm gonna use the mopar one. Hope it works OK. |
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| Author: | tjkj2002 [ Sat Feb 07, 2009 9:08 pm ] |
| Post subject: | |
The best RTV I have found for trans pans in Ultra Gray,it gets harder then regular RTV and can handle high torque apps. |
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