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Cat 299D2 Cranks, Won't start

Discussion in 'Track Loaders' started by david_, May 8, 2022.

  1. Nige

    Nige Senior Member

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    G..G..G..Granville.........!! Fetch your cloth.
    Which would be really easy to do while the engine was out.....
     
  2. david_

    david_ Member

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    Ok understand.

    When I found the sludge in the fuel filter canister I did drain and attempt to flush out the fuel tank, but it probably wasn't very effective. This is why I believe the actual fuel level to be about 3/4 because of what I put back (after filtering), rather than almost empty as it displays. I'll try and pull the sender today.

    I'll pull the rail and polish the overpressure seat better this weekend. The overpressure solenoid is not a separate part you can order from the fuel rail, understandably because of the seat in the rail. But still the rail is $1,400. I'm trying to not think about how much the HPFP would cost. More than the machine is worth?

    Luckily I did pull a PSR before I cleared the codes. Attached.
     

    Attached Files:

  3. Nige

    Nige Senior Member

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    G..G..G..Granville.........!! Fetch your cloth.
    I don't think that was necessarily a good move. The old fuel should really have been used for another purpose and replaced with new fuel IMHO.
     
    mg2361 and david_ like this.
  4. david_

    david_ Member

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    You're right.

    Have the sending unit out and there doesn't seem to be sludge. It moves freely. I was mistaken about the fuel level, it is almost empty. It was months ago so I guess I took the old fuel to recycling.

    I'm in the process of removing the fuel rail to better polish the seat.
     
  5. david_

    david_ Member

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    Oh, for the second polishing of the fuel rail, it's not looking so good.

    After much work with the fine grit it went from being 'grindy' to absolutely smooth. I thought I was hot sh*t. Then I had a look at it cleaned:
    [​IMG]

    This was the clearest shot I could get but it definitely did not look 'polished'. I got out my high-mag Coils and there are clearly striations around the seat. Checking the bronze plug, same thing.

    So assuming the seat is brass, which it looks like, then it will be softer than the bronze plug, which evidently had the striations from the course grit.

    It is definitely improved from before but only a fraction of the surface will be in contact with the solenoid plate. Maybe I should ask the machine shop to re-mill the plug. I don't understand why they wouldn't take a mil or so off the seat; maybe I shouldn't have told them how much the part costs. DOH!
     
    Last edited: May 14, 2022