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Discussion in '1st Gen. Tacomas (1995-2004)' started by JT1521, Jul 9, 2019.

Page 6 of 6
  1. Jul 30, 2019 at 2:37 PM
    #101
    JT1521

    #101
    JT1521 [OP] Well-Known Member

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    Will a CEL clear itself if I do fix the exhaust leak or do I need to clear it and pray it never comes back?
     
    JT1521, Jul 30, 2019
    #101
  2. Jul 30, 2019 at 6:13 PM
    #102
    goldentaco03

    #102
    goldentaco03 Well-Known Member

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    It should clear itself but it might take a while. Resetting the computer might make it go faster.
     
    goldentaco03, Jul 30, 2019
    #102
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  3. Jul 30, 2019 at 7:26 PM
    #103
    JT1521

    #103
    JT1521 [OP] Well-Known Member

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    Well I tried 3 different split flanges and none of them fit right. I have no clue what would be better than what was on there that lines up right. The CAT pipe is 2" and the muffler pipe is 2 1/4". Nothing lines up with existing muffler flange holes. So I cleaned up the old split flange, threw a new gasket on. Only surface rust on the old split flange. Then used new bolts, nuts and washers. Tightened it up. Checked for leaks and there is less of a leak. It is coming from the top about a nickel size if you can imagine that. So I tightened more. Still same leak. I think I might have overtighten the bolts cause I am fairly strong and don't know when to stop. Lol Anything I could do about the smaller leak to close that up? Maybe put a big glob of
    Permatex Muffler/Tail Pipe Sealer
    on top?


    IMG_20190730_222233470.jpg



    IMG_0837.PNG.jpg
     
    Last edited: Jul 30, 2019
    JT1521, Jul 30, 2019
    #103
  4. Jul 31, 2019 at 12:21 PM
    #104
    JT1521

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    JT1521 [OP] Well-Known Member

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    Can I untighten and retighten to whatever the torque specs of flange bolts are supposed to be or will that screw up the gasket?
     
    JT1521, Jul 31, 2019
    #104
  5. Jul 31, 2019 at 12:53 PM
    #105
    goldentaco03

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    goldentaco03 Well-Known Member

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    I tried JB Weld high temp manifold repair stuff on mine. Leak was very similar. Big hole on the top of the flange. It stayed on for about 2 days and then it all just fell off.
     
    goldentaco03, Jul 31, 2019
    #105
  6. Jul 31, 2019 at 1:34 PM
    #106
    JT1521

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    JT1521 [OP] Well-Known Member

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    What
    What is your opinion about untightening the bolts then retorquing to whatever specs? Thinking I may have overtightened the bolts.
     
    Last edited: Jul 31, 2019
    JT1521, Jul 31, 2019
    #106
  7. Jul 31, 2019 at 1:55 PM
    #107
    goldentaco03

    #107
    goldentaco03 Well-Known Member

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    Don't think it'll matter much. The heat cycles do weird things to those gaskets anyways
     
    goldentaco03, Jul 31, 2019
    #107
  8. Jul 31, 2019 at 2:09 PM
    #108
    JT1521

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    JT1521 [OP] Well-Known Member

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    How do I know what the proper torque specs is for the bolts? If I overtightened them I'm afraid something will break over time lol.
     
    JT1521, Jul 31, 2019
    #108
  9. Jul 31, 2019 at 6:32 PM
    #109
    JT1521

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    JT1521 [OP] Well-Known Member

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    No comments? Lol
     
    JT1521, Jul 31, 2019
    #109
  10. Jul 31, 2019 at 6:33 PM
    #110
    goldentaco03

    #110
    goldentaco03 Well-Known Member

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    Look in the fsm. I’m gonna go with about 50 n-m or so. They don’t need to be super tight. I can check in a second..
     
    goldentaco03, Jul 31, 2019
    #110
  11. Jul 31, 2019 at 6:42 PM
    #111
    goldentaco03

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    goldentaco03 Well-Known Member

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    Yup 48 N-m
     

    Attached Files:

    goldentaco03, Jul 31, 2019
    #111
  12. Jul 31, 2019 at 7:00 PM
    #112
    JT1521

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    JT1521 [OP] Well-Known Member

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    Right on. Thanks dude. I just converted 48 n-m to ft lbs. 35.4 ft lbs.
     
    JT1521, Jul 31, 2019
    #112
  13. Jul 31, 2019 at 7:11 PM
    #113
    JT1521

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    JT1521 [OP] Well-Known Member

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    Nice. My truck is a 5VZ-FE engine. Those diagrams are for 2RZ-FE and 3RZ-FE engines. Assuming the torque should be the same. Anyway 48 n-m is 35.4 ft lbs of torque. For anyoneeeding a conversion. Can you send me a link to those spec diagrams if you wouldn't mind?
     
    JT1521, Jul 31, 2019
    #113
  14. Jul 31, 2019 at 7:30 PM
    #114
    goldentaco03

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    goldentaco03 Well-Known Member

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    goldentaco03, Jul 31, 2019
    #114
  15. Jul 31, 2019 at 9:26 PM
    #115
    JT1521

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    JT1521 [OP] Well-Known Member

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    By the way I smelled a bit of rubber type burning smell from my truck when I got home today. Changing the gasket have anything to do with that? Why would I smell a faint burning rubber smell? Could it be from the small leak at the flange?
     
    JT1521, Jul 31, 2019
    #115
  16. Aug 1, 2019 at 6:08 AM
    #116
    goldentaco03

    #116
    goldentaco03 Well-Known Member

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    Don't think it would make that much of a difference. The couple gaskets I've bought didn't have a shiny, and non shiny side.

    I ended up getting one of these instead cause I was tired of the composite gaskets crumbling and falling apart within a couple weeks.
    $10 Vibrant Performance Power 1456 Gasket, Exhaust Flange, 2-Bolt, 2.25 in. diameter, 4.00 in. Bolt Hole Center-to-Center, Multi-Layer Graphite, each
    https://www.amazon.com/2-Bolt-Temperature-Exhaust-Gasket-2-25in/dp/B002T6ZASA
     
    goldentaco03, Aug 1, 2019
    #116
  17. Aug 1, 2019 at 6:55 AM
    #117
    JT1521

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    JT1521 [OP] Well-Known Member

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    Any idea about the burnt rubber smell?
     
    JT1521, Aug 1, 2019
    #117
  18. Aug 1, 2019 at 3:56 PM
    #118
    JT1521

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    JT1521 [OP] Well-Known Member

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    Ok so the CEL just turned off when I started my truck up. I went and did some errands. I came home left the truck running while I checked the leak. Now there is no leak. Felt all around. Strangeness. Maybe the new gasket heated up and expands and closed the leak?
     
    JT1521, Aug 1, 2019
    #118
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  19. Aug 1, 2019 at 5:35 PM
    #119
    goldentaco03

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    goldentaco03 Well-Known Member

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    No idea. At least it’s fixed. Have you put your hand near the flange while it’s running and felt for leaks?
     
    goldentaco03, Aug 1, 2019
    #119
  20. Aug 1, 2019 at 5:38 PM
    #120
    JT1521

    #120
    JT1521 [OP] Well-Known Member

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    Yes that is what I did earlier. Felt all around the flange and now no leaks. Weird if you ask me.
     
    JT1521, Aug 1, 2019
    #120
Page 6 of 6

Products Discussed in

Vibrant Performance Power 1456 Gasket, Exhaust Flange, 2-Bolt, 2.25 in. diameter, 4.00 in. Bolt Hole Center-to-Center, Multi-Layer Graphite, each
$9.61
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