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    #16
    I have a hard time imagining how RTV or anything else might help with a leak between a rotating shaft and a seal. Has anyone ever made this work?

    The only thing I can think of is get something like an o-ring or part of another seal to act as an outer seal by using RTV to secure it to the outside of the existing seal.

    Or I guess maybe put a thin film of grease on the shaft so the RTV can cure around the seal without sticking to the shaft?
    Last edited by IPreferDIY; 02-05-2015, 01:24 AM.

    2000 Grand Marquis LS HPP, a hand-me-down in 2008 with 128,000 km; 175,000 km as of July 2014
    mods: air filter box 'tuba', headlight relay harness, J-mod (around 186,350 km), 70mm throttle body, KYB Gas-A-Just shocks, aluminum driveshaft, ARA3 PCM

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      #17
      Originally posted by sly View Post
      what would be a good RTV that trans fluid won't eat through? My tail shaft seal needs some attn on the 93 and I think it's due to someone that worked on it scratching the damn thing.
      Sly, I'm pretty sure I had a tail shaft seal on the '91 replaced by my regular mechanic for like $60 or 120$ it was one of those. I was leaving a lot of smoke down the highway, I'm just glad I noticed that day before it started pouring rain, I would have never seen it. Should be pretty cheap for proper repair.
      ,
      Slicktop '91 GS HO 4.30 rear. '82 Mark VI Tudor HO, '90 F-150 XLT, '62 project Heep, '89 Arizona Waggin' and '88 donor in PA, getting combined.

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        #18
        Originally posted by sxcpotatoes View Post
        Sly, I had a tail shaft seal on the '91 replaced by my regular mechanic for like $60 or 120$ it was one of those. I was leaving a lot of smoke down the highway, I'm just glad I noticed that day before it started pouring rain, I would have never seen it. Should be pretty cheap for proper repair.
        it's been "properly" repaired 3 times already and still has a small leak (like add a quart every 6 months to a year). I'm not paying another shop to jack with that unless I'm getting the entire trans rebuilt. I have the tools to remove the driveshaft and do it myself if needed. Maybe just take the drive shaft out and put a dab of ultra copper on with a new seal.

        Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
        rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)
        Originally posted by gadget73
        ... and it should all work like magic and unicorns and stuff.
        Originally posted by dmccaig
        Overhead, some poor bastards are flying in airplanes.

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          #19
          RTV on the outside won't seal it, and it won't seal it to a rotating shaft. The only way to fix it is to fix it. If that involves pulling the shaft to fill and file it, so be it. You can melt brass into those and fill grooves, but it will not last as long as a repair sleeve or a replacement yoke.
          86 Lincoln Town Car (Galactica).
          5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

          91 Lincoln Mark VII LSC grandpa spec white and cranberry

          1984 Lincoln Continental TurboDiesel - rolls coal

          Originally posted by phayzer5
          I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

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            #20
            Ah, okay, didn't know you'd had it repaired multiple times previously Sly.
            ,
            Slicktop '91 GS HO 4.30 rear. '82 Mark VI Tudor HO, '90 F-150 XLT, '62 project Heep, '89 Arizona Waggin' and '88 donor in PA, getting combined.

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