hello mkreh23,here is the data for d23j from mbcat info page,bruce oz
D2 3J & 5J Data
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Specifications;
Machine Serial Number Plates; located on back top left hand of transmission case and on left side of engine block behind starting engine clutch lever.
The following are maximum horsepower at sea level:
Drawbar HP………………..………………25.5
Belt HP………………………………..…..31.5
Engine--four cycle, water cooled: Commercial
Fuel.............................................. ..Diesel fuel
Number of cylinders..............................4
Bore and Stroke..................................3 3/4" x 5"
Piston displacement..............................221 cu. in.
R.P.M. ---governed at full load...............1,525
Piston speed.......................................1,271 F.P.M.
R.P.M. at Maximum drawbar pull
(point of maximum torque).................1,000
N.A.C.C. HP. rating for tax purposes......22.5
Lubrication.....................................Fo rce Feed
Crankshaft:
Number of main bearings.......................5
Diameter of main bearings......................2 3/4"
Total area main bearing surface..............80.3 sq. in.
Starting Method:
Independent, two cylinder, horizontal opposed, 4-cycle gasoline engine, equipped with high tension magneto, down-draft carburetor and flyball governor. Bore 2 3/4-in. Stroke 3-in. 10 H.P. at 3,000 R.P.M. Drive by multiple disc clutch and helical gears to flywheel.
The following are maximum drawbar pulls at sea level and rated engine speed.
Drawbar pull:
First…………………………...................5,690 lbs.
Second............................................ ...3,740 lbs.
Third............................................. ......3,025 lbs.
Fourth............................................ .....2,325 lbs.
Fifth............................................. .......1,490 lbs.
The following calculated values for maximum drawbar pull are based on the observed drawbar pull shown above. When slowed down by overload, "Caterpillar" engines develop a considerably greater turning effort at the flywheel (torque), which results in greater drawbar pull at reduced travel speed:
Drawbar pull, Maximum.
First............................................. ......6,160 lbs.
Second............................................ ..4,050 lbs.
Third............................................. .....3,280 lbs.
Fourth............................................ ....2,520 lbs.
Fifth............................................. ......1,615 lbs.
Speeds in M.P.H. at full load governed engines R.P.M.
First............................................. ......1.7
Second............................................ ...2.5
Third............................................. ......3.0
Fourth............................................ .....3.6
Fifth............................................. .......5.1
Reverse........................................... ....2.1
Length of tracks on ground (center drive sprocket to center front idler)........................4'-6 1/2"
Area ground contact (with 12" track shoes)............................................ ...........1,308 sq. in."
Over-all:
Length............................................ .................................................. ............................8'-11"
Height (measured form tip of grouser of standard track shoe to highest point, exclusive of exhaust pipe and air cleaner inlet screen)........................................... .....................4'-9 11/16"
Ground Clearance (measured from lower face of standard track shoe).............................9"
Height Drawbar above ground (measured from lower face of standard track shoe............12"
Lateral Movement Drawbar (measured at pin).............................................. ...............20 3/8"
Track:
Width of standard track shoe.............................................. .....................................12"
Height of grouser (measured from upper face of standard track shoe............................1 7/8"
Diameter of track shoe bolts............................................. ........................................7/16"
Diameter of track pins.............................................. ................................................1 1/8"
Diameter of track pin bushings.......................................... ........................................1 11/16"
Steering:
Number friction surfaces in each steering clutch............................................ .............16
Area each friction surface........................................... ..........................................35.2 sq. in.
Total friction surface each clutch............................................ ................................564 sq. in.
Transmission
Capacities:
Cooling system, in U.S. standard gal............................................... .......................7 3/4
Lubricating system:
Crankcase, in quarts............................................ .................................................1 3
Transmission case in quarts............................................ .......................................8
Final drive case (each), in quarts............................................ .................................4
Fuel Tank, in U.S. standard gallons........................................... ..............................20
..........................................50" gauge.................................. 40" gauge
Over-all Width.......................5' -5 3/4"......................................4' -7 3/4"
Weight, shipping (approx)......6,650 lbs....................................6.520 lbs.
D2 track chain Specifications;
To determine the average internal pin wear measure across a piece of chain composing of 4 links (5 pins). The 75% wear is recommendation for pin and bush turn (noted in red).
D2-=; new; 24.48", 25% wear; 24.60", 50% wear; 24.71", 75% wear; 24.87", 100% wear; 25.07".
D2 chain rail new heighth; 3"
D2 chain heighth rebuild limit; 2.75"
D2 roller dia. new; 7"
D2 roller dia rebuild limit ; 6.75"
D2 front idler rebuild limit is wear surface 25/32 nds" below centre rib.