How do you know if you have an exaust leak?

Discussion in '40- & 55-Series Tech' started by wsdavies, Jun 18, 2005.

  1. wsdavies

    wsdavies

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    I have the top off my 40 and it seems like I smell exuast all the time. Is this normal? It takes the fun out of driving it and kills my lungs. I figured you might smell exaust here and there but not 80 90% of the time???
     
  2. nailbender

    nailbender

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    yOU WIL GEET DRIAN BAMAGE. Sorry, If you exhust goes out the back have it moved to exit out the side. The best way to find an exust leak is with a sniffer ( any shop doing emission test will have one). You can also starte it cool and run your hand around the pipe real quick to feel for it.
     
  3. Archengine

    Archengine SILVER Star

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    Check where your exhaust exits, if the tip is aimed at a body panel. or is tucked up into the tub, then it will permeate in the area, and you will constantly smell it. ALso, climb under your truck, and follow the exhaust from the manifold/headers back, looking for misaligned tubes, or even some sooty black buildup. If you find some soot collecting anywhere on the exhaust, then you have a leak.
     
  4. wsdavies

    wsdavies

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    I know that the P.O.(my father) had a new exaust put on it..he wanted to put new headers, but they couldn't find any that were Cali smog legal..so the pipes are new from the headers back...I'm pretty sure they pulled the headers off and ended up putting them back on...My thought is that some how the gaskets didn't reseal right or some thing :eek:
     
  5. brian

    brian SILVER Star

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    you'll hear a leak, that is at or on the header it's self. most times you can hear a leak that's in front of the muffler as well.
     
  6. treerootCO

    treerootCO Where are my keys?! SILVER Star

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    I feel sleepy..what was the question again? Where did I put my keys..hehe.

    The guys at work know when I drive the 45 to work because I come in smelling like exhaust. Fix the leaks, reapair holes in your floorboard and firewall, and tune up your engine is the best way to fix her. Are you smelling exhaust or the fuel tank?

    Oh and make sure your exhaust tip exits the truck, not ends under the body somewhere.
     
  7. cruiserjunktion

    cruiserjunktion Cruiserjunktion@gmail.com Supporting Vendor GOLD Star

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    sor exhaust

    324-40 1 FJ40 S-O-R 2 Piece Headers-Fits 1968- $245.00
    324-44 1 FJ40 S-O-R Header Pipe-Fits 1968-1978 $51.99
    324-01 1 Muffler-Fits 1968-1978 FJ40 with S-O- $48.48
    324-02 1 S-O-R Tail Pipe-Fits 1968-1978 FJ40 w $24.95
    324-03 1 Bracket Kit-Fits 1968-1978 FJ40 with $54.27
    044-02B 6 MANIFOLD STUD-1968-12/74 (6 REQ'D) $8.04
    044-04A 6 WASHER-1968-12/74 (QTY 6 REQ'D) $3.78
    044-03A 6 NUT-1968-12/74 (QTY 6 REQ'D) $5.88
    044-61A 2 STUD HEATRISER-1958-1967 (QTY 2 REQ) $1.82
    044-61B 1 LG HEATRS BOLT-1968-12/74 (QTY 1 REQ) $2.96
    044-72C 4 STUD MAN2CARB-9/69-8/76 (QTY 4 REQ) $4.00
    044-08B 1 HEATRISER GASK-1968-12/74 $7.60
    044-60B 2 SH HEATRS BOLT-1968-12/74 (QTY 2 REQ' $1.52
    044-76B 2 S EXPIPE STUD-1968-12/74 (2 REQ'D) $3.98


    That should fix any exhaust leaks. I have the same problem. I have all of the above on order. I will be taking pictures of the install next week when the parts arrive.
     
  8. bull

    bull

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    Head down a hill and let off the gas...if you have little backfires or big ones...its most likely an exhaust leak.
     
  9. wsdavies

    wsdavies

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    It's def. exhuast...I'm not sure about the backfire..I thought I had one, but couldn't tell because my earbuds were on so loud...It def. makes a funny rumbly sound when I let off the gas and take it out of gear...kind of a blom blom blom..The exhaust exits the rear passenger side with the tip facing down..
     
  10. fyton2v

    fyton2v

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    I just found a leak between my intake and exhast manifold. Started it cold and felt around. It was very easy to find. Your post motivated me to find where that smell was coming from. :)
     
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