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  1. P

    Cat 428 3054 engine spurting oil from dipstick

    Hi all, I’ve got a 428C backhoe with a retro-fitted 3054 engine Serial No. 7BJ46984 in it. Originally had a NA engine in it which broke a rod, and I picked this up on the cheap so stuck it in. Its got a couple of issues basically: - I’ve changed the turbo on this engine 3 times, and they keep...
  2. P

    D6H transmission overheating

    Hi all, Trying to sort out an overheating transmission on a D6H Serial No. *2KD00564* for a buddy. The history of the machine as I’m aware of it is as follows: He bought the machine, put it on his lowbed, and when they tried to offload it, catastrophic clutch failure in the transmission...
    • Pralhad Birdi
    • Thread
    • bulldozer d6h dozer transmission
    • Replies: 123
    • Forum: Dozers
  3. P

    320C Slow Controls

    Hi everyone, I've got slow controls on a 320C AKH01848 excavator. For some context, this is a machine we've owned and maintained for the past 15 years, and its never had any major issues. The electronic throttle control motor ate through its gears a few years ago, and I put in a manual...
  4. P

    Detroit 4-71 runaway and diesel in air box

    Hi all, I’ve got a Detroit 4-71 which I retro-fitted into an IH TD-14A bulldozer. Ran great for a couple of weeks, before it started over-revving again immediately upon startup, and sending diesel into the sump. I assumed initially that the run away was caused by the level of oil rising due to...
  5. P

    320C Hydraulic Pump won’t turn

    Hi all, I’ve got a Japanese 320C excavator serial no. AKH 01848. The machine is working on an earth dam, excavating relatively soft material. It’s been working without an issues, until a couple of days ago when the operator switched the machine off at lunch time. When he tried to start it up...
  6. P

    Volvo L120C lack of power and excessive smoke

    Hi everyone, I've got a Volvo L120C wheel loader that's lacking power and smoking excessively. Bought this machine from a quarry, so it was pretty poorly when it came to us, with a hard start and blow by from the breather. We stripped down the engine, new liners and rings, ground the valves and...
  7. P

    Cat 317b lacks power

    Hi all, I've recently had a Cat 317 Serial No. 4M00179 come back from a site where it was stood idle for a couple of years. Upon testing, we found it was struggling to lift the boom and extend the stick under no load at engine idle. With increased revs, it would do it, but slower than it...
  8. P

    428C struggling to lift front boom

    Hello all, I've got a Cat 428C Serial No. 2CR03671 that's got an issue with the front lifting cylinders. This issue started a while back, whereby you'd have to operate the bucket tilt to get the front boom up. I didn't pay much attention at the time as it was doing a pipeline trench job that...
  9. P

    955L no controls

    Hi everyone, I'm running a 955L, and I seem to have lost all bucket controls. The machine still drives as it should, but I'm not getting anything from the boom and bucket . Any ideas what the issue could be? Thanks
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