3406b questions

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by W923, Apr 17, 2024.

  1. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    It’s missing some stuff
     
    W923 Thanks this.
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  3. W923

    W923 Road Train Member

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    Way easier to do a decent paint job before it’s put back on.
    Gets better mpgs too!
     
  4. W923

    W923 Road Train Member

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    IMG_6409.jpeg IMG_6408.jpeg
    look better now?? IMG_6395.jpeg
    What a mess
    IMG_6407.jpeg
    much better now
    IMG_6410.jpeg
    and since ford puts their engines in crooked the easiest way to accommodate is lean the truck the other way and let the engine hang straight
    IMG_6412.jpeg IMG_6414.jpeg
    and fml some how we were off a couple inches on the front mount
     
  5. W923

    W923 Road Train Member

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    IMG_6425.jpeg
    cross member problem solved
    IMG_6437.jpeg
    it fits better than expected IMG_6435.jpeg Even hauled a load with it today
    I don’t miss that m11 even one bit IMG_6439.jpeg IMG_6440.jpeg IMG_6438.jpeg Now why is there a small oil leak at this threaded hole?
    Everything else is dry as a bone
     
    Sons Hero, BoxCarKidd and wore out Thank this.
  6. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    Tach shaft seal.
    Dry it up with brake clean put high temp silicone in it let it dry will not hurt a thing over fill anything or affect anything except the oil leak it self.
     
  7. W923

    W923 Road Train Member

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    Just mostly curious here…
    I have more power than the m11 but more is always better lol
    I can get 17 psi boost at 1500 rpm odly it won’t get above that…almost like it’s a gate turbo ( definitely not)
    Boost comes on reasonably fast till around 15 psi and builds the last bit slower. Turbo I think has a 1.85 ar exhaust housing it’s a cat don’t know the number though.
    Fuel pressure under load is around 30 I didn’t have a snubber on the gauge so kinda hard to tell
    Egt with a temp gun is around 650
    That removable doghouse has occasional advantages… don’t have a pyro in it right now.
    Seems to me it just needs more fuel
    There’s no smoke after 10 psi boost and the aneroid is disabled
     
  8. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    Rack travel. Define aneroid disabled? Has to be something there that’s still holding the rack in my opinion
    Did you cut the nail head off the AFRC? Till you said disabled I would say it’s the diaphragm or not getting any boost.
     
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  9. W923

    W923 Road Train Member

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    I tried adjusting it until there were no threads left…it made a little smoke and would spool the turbo much faster. Made very little if any difference on total boost. I put a socket under the cover to hold the stem forward. Maybe that is not enough or doing what I think it is. I did test it with a t, ball valve and a pressure gauge it would take 1/2 hour or so to leak off from 25 psi and there was very little volume of air in it. I would think that would be sufficient
     
  10. wore out

    wore out Numbered Classic

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    CHASIN THE DEVIL'S HERD
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    It should be for sure. Have you had the back of the pump off?

    Also you can check for full rack travel with a timing pin or a 3/8 bolt with the threads cut off just using the shank. Pull the peanut side cover on pump, top plug a drop pin in. Turn key on and block throttle wide open make pick pin up just to let rack notch clear it. The pin and the edge of that notch in rack should be dead even.


    Almost forgot the simple stuff, make sure your pedal gives the throttle full travel and pulls against the break over spring
     
    BoxCarKidd Thanks this.
  11. W923

    W923 Road Train Member

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    The throttle is breaking over…I did have some trouble with that at first when I switched engines.
    I have not had the back of the pump off but I do know the timing advance is working ( only tested with a pulse timing light) but that will tell it’s working just maybe not to much accuracy
     
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