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Dozers and Crawlers Holt, Caterpillar, Cletrac, etc.

Dozers and Crawlers

Caterpillar D-2


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  #1  
Old 07-11-2019, 02:28:01 PM
fks1960 fks1960 is offline
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Default Caterpillar D-2

1945 D-2 Caterpillar that has set for 20 years, what do you recommend we do to the fuel system before trying to start? We have the pony motor running. We dumped the fuel tank and put in new diesel.
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Old 07-11-2019, 02:53:18 PM
Andrew Mackey Andrew Mackey is offline
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Default Re: Catipillar D-2

Make sure the rack is not stuck. I would loosen all the injectors if possible and bleed any old fuel out first. Before cranking with the pony, I would turn the engine by hand to make sure there are no stuck parts, like valve stems and lifters. Engaging a starter to an engine with stuck parts can lead to a disaster!
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Old 07-11-2019, 04:13:43 PM
Tracy T Tracy T is online now
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Default Re: Catipillar D-2

replace fuel filters IF you can find them! I second bleeding the injectors may even unhook the lines @ the injectors so no crap goes into them then after you have fresh fuel there replace the filters. agree with everything andrew said, dont need a bent pushrod or a snapped off valve. may even be a good idea to pull the injectors, you may have a cylinder hydrolocked.
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Old 07-11-2019, 11:38:07 PM
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ulgydog56 ulgydog56 is offline
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Default Re: Caterpillar D-2

don't forget to grease all fitts use JD corn head grease its safe for old grease fittings made in pre 1970s equipment and throw some used oil on the tract pins.....
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Old 07-11-2019, 11:47:05 PM
mschreiber mschreiber is offline
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Default Re: Caterpillar D-2

Will main turn over by hand? if so, Some how some way pressurized the diesel 5-7 lbs., it'll make easy to bleed system..Will the steering clutch handles move? Is it in gear and main cluth engaged?
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Old 07-12-2019, 02:29:00 PM
Tracy T Tracy T is online now
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Default Re: Caterpillar D-2

somehow i dont think bleeding is going to be a problem, it has its own engine for a starter and they have it running already. those pony motors where quite the idea! pre heats the intake air and the block coolant, no batteries to run down. just the best idea ever in my opinion! can even roll that engine with the compression release set to no compression until the engine builds both fuel pressure and oil pressure.
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Old 07-12-2019, 04:48:50 PM
Mitch Malcolm Mitch Malcolm is offline
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Default Re: Caterpillar D-2

Add a quart of ATF or Marvel mystery oil to the fuel the new fuel is to dry and you will have nothing but trouble with the pump
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Old 07-12-2019, 06:08:36 PM
Dick Brown Dick Brown is offline
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Default Re: Caterpillar D-2

Make sure check valve in fuel supply pump is working properly
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