![]() I used to keep my hand on the throttle linkage and slow it down as soon as the diesel fires. One last thing is be aware of over speeding these when the diesel fires up, there is an adjustment on the pinion to set when it kicks out. I used care to clean around the area so as to not allow any dirt into the sump.Īlso be aware that without the diesel spinning, no coolant is circulating, the diesel must be engaged soon after the starting engine fires up. Regular oil changes won't hurt either, I used to carefully extract it with a drill pump and small diameter hose, by removing the side inspection cover. ![]() The local dozer repair shop ended up with it and parted it out, it had a crack in the rearend housing. ![]() We didnt use the tow pan, but the next owner did on a job or 2. Had a push block for pushing scrapper pans and winches for a tow pan. Use care with these, always and I mean always check the oil level and condition, they can easily fill up with fuel and thin the oil,so much the fuel will run out the dipstick tube, best to run it out, shut the fuel valve off. Re: D8 Cat Dozer, 2U series Good to see a nice old D8-2U again, first dozer I ever ran was a 2U. There are a bunch of little things with these, if it has decent compression, should run. How is the spark from the magneto ? What kind of spark plugs and what plug wire type does it have, hopefully solid wire. Engine Detail: Caterpillar D339: turbocharged diesel: 4-cylinder: liquid-cooled: Displacement: 831 ci 13.6 L: Bore/Stroke: 5.75x8.00 inches 146 x 203 mm: Air cleaner: dry Rated RPM: 1200 Starter: gasoline pony engine Starter volts: 12 Oil capacity: 26 qts 24.6 L: Coolant capacity: 84 qts 79. The post-World War Two D7 series featured Caterpillars own dozer attachments with the Caterpillar logo. The spark plugs and wires are visible on top of the pony motor. i got a d7-3t dozer, has the hydrolic blade, my issue is that the poney motor is missing parts, and shot, so im trying to go to direct start, only problem im having is this d7 has a 7m motor, so the clutch housing is not drilled for the 3 bolt hols for the adapter, iv seen some people do some odd stuf like. On a D6 9U and all the CAT's smaller than that, there are 2 levers that are used to connect the pony to the main engine to crank it. These online auctions take place each week, standard bidding begins 7 days before the close of each online heavy equipment auction. The reason I ask is you mention a 2 speed which sounds like a D7 or D8 with the upright pony motor instead of the D6 with the horizontal opposed 2 cylinder. In good running order, they'll start with the hand crank.Ĭlean the screen leading into the carb, make sure the fuel tank is not full of coffee grind rust particles and also make sure the sediment bowl screen is not restricted. The right-angle connection rotated the crank shaft of the pony motor. Find dozer auctions, wheel loader auctions, excavator auctions, skid steer, motor grader, crane, crawler loader, crawler dozer, and scraper auctions, plus much more. These 2 cylinder starting engines need a good flow of fuel and hot spark.
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