Bob Rooks

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  • in reply to: Diesel bug #31128
    Bob Rooks
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      Nope, nobody does. I've witnessed them bring a 1,200 hp Deutz diesel engine to it's knees, and have seen the damage they can do to a LM2500 marine gas turbine fuel system.

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      in reply to: Diesel bug #31126
      Bob Rooks
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        Mailman wrote:

        ok you got me is that something like snipe hunting?  i have been running diesel for years and never heard of it.

        Offhand I'd say you've been pretty fortunate. Snipes are only found in engine rooms. Laughing

        it could be that i run AMSoil diesel conditioner in mine,  or that i have only used BP offroad fuel ;  but for what ever reason i have never heard of it.

        If your fuel additive contains a biocide then that could explain your luck. Bugs don't care if it's off-road fuel or not, and the fuel/water inteface only has to be about .002″ to get the ball rolling, which isn't much.

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        in reply to: Engine problems! #31122
        Bob Rooks
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          Light colored exhaust at start up in cold ambient temps can be normal – low combustion temps = unburned fuel = white smoke. This could last for up to a minute at idle speed. You would also get, as Rich mentioned, condensation because water is a by-product of low temp. incomplete combustion. If there is a head gasket failure to the combustion chamber you will also notice bubbles and/or surging and an oil slick in the coolant flow in the radiator top tank. If the tractor was parked outside I can only assume that you had a can over the exhaust pipe.

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          in reply to: Steering clutches frozen up #31100
          Bob Rooks
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            I haven't personally, but you should know that the clutches operate under spring pressure and when you press on the steering pedal you are compressing the springs and relaxing the clutch pack. That said, the “cerro-metallic” discs are not ceramic. They are not unlike those you would find in a marine or fork lift transmission which are intendedto run “wet”. But these don't because the brake bands won't like it. There are drain plugs in the bottom of the steering clutch housings that should be checked periodically for water contamination. If the dozer has sat idle for some period it's a good chance you are correct. If you can't free them up by judiciously applying a penetrating oil (avoid getting any oil on the brake bands), you will have to drop the swing frame and pull the final drive.

            One thought; is the clutch release yoke secure on the shaft? In other words, does the yoke move in conjunction with the shaft?

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