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runs rough, white smoke after head rebuild

Discussion in '40- & 55-Series Tech' started by bad_religion_au, Dec 25, 2003.

  1. bad_religion_au

    bad_religion_au

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    after re doing the head on my H (3.6l) diesel, i have rough idle, and it blows white smoke.

    help please
     
  2. s79bj40

    s79bj40

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    isn't white water?
     
  3. bad_religion_au

    bad_religion_au

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    according to websites on diesels, white smoke can be unburnt fuel in an engine that is operating under the normal operating temp.

    and i haven't lost any water
     
  4. s79bj40

    s79bj40

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    how long was it blowing smoke for after you started it up? and how long did you have it running for? And what ended up being wrong with the head? was there a crack and did you take it to a mech? Or was it ok and the overflow bottle problem was to do with something else?
     
  5. Gumby

    Gumby Supamod Staff Member s-Moderator

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    Possibly just oil in the cylinders from the rebuild? Possibly injector pump timing. Hopefully does not smell sticky sweet like coolant. That'd be bad. :'(
     
  6. roscoFJ73

    roscoFJ73

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    Possibly a minute air leak in the fuel sytem.The air leaking in can cause condensation in the exhaust smoke making it appear white.The rough running is also another sign of a leak.Its also possible you havent got all the air out of the system when you bled it after fitting the head
     
  7. bad_religion_au

    bad_religion_au

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    it blows smoke all the time

    head problems were as follows. warped head, cracked head gasket and welsh plugs were shot. one or all these things caused the overflow problem,

    i thought that perhaps it could be oil from the rebuild. but it doesn't look like oil smoke, and it hasn't gone away yet. ran for about an hour last night and still smoking.

    smokes a lot worse under load or full throttle.

    possibly could need a better bleed out, i didn't know about bleeding injector lines till late last night.
     
  8. bad_religion_au

    bad_religion_au

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    ahhhhhhh

    started bleeding the injectors, heaps of air in there, and then poof, engine died, won't start again. no fuel getting through either fuel filter with the fuel pump (although the primer is pumping it to the injector pump. there is fuel being pumped to the fuel filters however
     
  9. bad_religion_au

    bad_religion_au

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    ok bled the whole thing, even hilifted the back to get the tank higher than everything else. the back two injectors are getting fuel. the front 4 are not :doh:
     
  10. bad_religion_au

    bad_religion_au

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    found why it was getting air in the system. one of the washers on the top of the injector rail slipped out during install. now it runs rough, but we got a suggestion to adjust valve clearances
     
  11. cruiser_guy

    cruiser_guy

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    Didn't you do a rough adjustment on the valves when you put the head back on? The plan is rough adjust, warm up and readjust the valves. It's always been fairly close when I've done it.
     
  12. bad_religion_au

    bad_religion_au

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    obviously it was a very rough valve job for some reason (don't think dad tightened the lock nuts down properly :doh: ).

    but found where the air was getting into the lines, it was a missing washer on the injector rail. once we bled that and did the valves, it purred like a kitten. more torque than before we had the head off, no flat spots, and little smoke, (and the smoke which exists could be due to the recently cleaned valves aparently.)

    so all in all a success. and it even fixed the problem with the overflow bottle. that was either a warped head, a head gasket, or welsh plugs, as all 3 were done at once

    s*** the H runs again :eek: watch out if your down under
     
  13. s79bj40

    s79bj40

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    if the welsh plugs come out they have to be replaced with new ones anyway, so there is no getting out of that. are you a member of any clubs in oz? like tlcc au? I think this year is the year for me to join one and am starting to look.

    sam
     
  14. Jonathan_Ferguson

    Jonathan_Ferguson ★ is in the wrong locale SILVER Star

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    Dad and I are going to join the Toyota Landcruiser Club of Victoria soon.
    Also looking at joining the Melbourne Jeep Owners Club. - Serious as they have a Club Property, As does TLCV. :cheers:
     
  15. Klunky Chris

    Klunky Chris

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    got a T-shirt from my cuz in OZ.....

    "there are only 2 states in Australia..... WA, and pissed!"

    Thought that was funny and served no purpose in helping you guys so I posted it!!! :D

    She lives above Perth and tells me her friends are in to *utes* but can't tell me if they are Toyotas or not.... "They're all gas guzzlers and killing the enviroment" as far as she is concerned....

    So when I come visit soon, I'll have to *secretly* come visit all you guys! Can't have the fam upset at my recreational activities :D

    I'll need to go out and get milk.... or something...... They'll never know ::)
     
  16. bad_religion_au

    bad_religion_au

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    i think by UTES she means kingswoods and stuff. pickups based on australian family cars, which these people destroy by attaching mac truck bullbars and mudflaps to and have like 300 spotlights, and 400 cb antenna's.

    replaced the welsh plugs with new. and no i'm not a member of any clubs. but i'll probably join one soon, as my wheeling buddies are taking up moto X and i'm stuck (literally sometimes) without wheeling buddies
     
  17. bad_religion_au

    bad_religion_au

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    i think by UTES she means kingswoods and stuff. pickups based on australian family cars, which these people destroy by attaching mac truck bullbars and mudflaps to and have like 300 spotlights, and 400 cb antenna's.

    replaced the welsh plugs with new. and no i'm not a member of any clubs. but i'll probably join one soon, as my wheeling buddies are taking up moto X and i'm stuck (literally sometimes) without wheeling buddies
     
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