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1990 740 turbo, oil leak at fitting. 700 1990

posted by  brucebcd on  Tue Apr 21 15:07 CST 2020
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last visit: Sat Sep 28 11:17 CST 2013
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there are two fittings, 22mm, that are on the housing that holds the oil filter. Connecting oil lines from turbo. One of them leaks. Question, should either of these fittings have washers? They don't currently have washers. Do the threads ever wear out? Is this part sold anywhere?

this model uses the mitsu turbo

thanks in advance.

the leak is so bad that the oil runs back and get's on the cat converter, and smokes pretty good....








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    1990 740 turbo, oil leak at fitting. 700 1990

    posted by  Nahtanha on  Fri Apr 24 11:15 CST 2020
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    last visit: Tue May 20 10:10 CST 2014
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    My 740 has the same problem. It's a flare fitting so No gasket or washer. I will use plumber silicone grease on my treads of the fitting next time and a little on the face of the pipe sealing surface... If you use silicone tape, there will be a chance of turbo bearing clog. I will try mine next time I change the oil. Do Not over tighten this fitting as it will just make things worst.







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