Gradall with detroit 6v53

[big builder]

I found this online... are these accurate power numbers? Will this engine honestly make 202 hp @ 2500 rpm's. If so it should hav enough power for the job. I noticed that max torque is 445@ 1500 rpms. Is this a more important number than max horsepower?

Detroit Diesel 6v-53N Engine - Typical Industrial Specification - With N50 Injectors
6v-53N POWER at sea level
RPM 1500 2000 2500 2800
Horse Power SAE 134 175 202 216
Power Kw 100 130 151 161
. . . . .
Torque Ft lbs 445 432 410 395
Torque Nm 603 586 556 336
. . . . .
Fuel Consumption 22 28 31 34
. . . . .
Max Toque Ft lbs 445 @ 1500 RPM
Max Torque Nm 603 @ 1500 RPM

Physical Characteristics Detroit Diesel 6v-53N
Weight 1485 lbs 674 kgs
Length 39" 991 mm
Width 40" 1016 mm
Height 37" 940 mm
Compression Ratio 21:1
Displacement 318 Cu Inches 5211 ml
Bore 3.875 inches 98.425 mm
Stroke 4.50 inches 114.30 mm

Torque specifications Detroit Diesel 6v-53N Engine
Torques (Non standard) Bolt Size Ft Lbs Nm
Accessory pulley nut ¾ NF 125 170
Air box cover 3/8 NC 15 20
Big Ends 3/8 NF 45 61
Cam and Balance-shaft nuts 1 1/8 NF 300 407
Cam follower guide bolts ¼NC 15 20
Crank end bolt 1" NF 290 393
* Cylinder head 5/8 NC 180 244
Flywheel Housing Bolts 3/8 NF 30 41
Fuel Connectors 3/8 NF 25 34
Fuel Line Nuts 3/8 NF 15 20
Governor to flywheel housing 5/16 NC 12 16
Idler gear hub bolts 3/8 NC 40 54
Injector clamp bolts 3/8 NC 25 34
* Mains 9/16 NC 125 170
Rocker arm bracket bolts 7/16 NC 55 75
Sump bolts 5/16 NC 10 14
* Flywheel bolts ½ NF 50 + 90-120 ° 68 + 90-120 °
. . . .
* Apply 'Copper-Slip' or equivalent

Common Settings Detroit Diesel 6v-53N
Set Inches mm
Injectors (N45 & N50) 1.460 37.10
Valves (cold) 0.026 0.70

Standard Sizes and useful clearances Detroit Diesel 6v-53N
Part Min inches Max inches Limits ins Min mm Max mm Limits mm
Con Rod - ID Small End Bush 1.3760 1.3765 . 34.95 34.96 .
Con Rod - Length centre to centre 8.7990 8.8010 . 223.49 223.55 .
Crankshaft end float 0.0040 0.0160 . 0.10 0.41 .
Crankshaft Big end Std Diameter 2.7490 2.7500 . 69.82 69.85 .
Crankshaft Mains Std Diameter 3.4990 3.5000 . 88.87 88.90 .
Cyl liner - flange below block 0.0465 0.0500 . 1.18 1.27 .
Cyl Liner - flange below block variation 0.0000 0.0020 . 0.00 0.05 .
Cyl Liner - ID 3.8750 3.8767 . 98.43 98.47 .
Piston skirt diameter 3.8699 3.8721 . 98.30 98.35 .
Ring gap - compression rings 0.0200 0.0360 0.0600 0.51 0.91 1.52
Ring gap - oil rings 0.0100 0.0250 0.0440 0.25 0.64 1.12

Tune up & useful information 53N Detroit Diesel engines
Item Condition
Altitude deration 2.5% for every 300 m or 1000 ft
Cooling System - engine capacity 3.30 litres
Cooling System - radiator capacity 7.10 litres
Firing Order 1L-3R-3L-2R-2L-1R (viewed from rear)
Oil consumption normal 71 to 203 ml per hour
Oil pan capacity average 16 litres
Speed full load max Most common at 2500 rpm
Speed no load max Most common at 2750 rpm
Speed at idle commonly at 680 rpm

Operating Conditions 53N series engines
Item Condition
Compression (sea level) New parts - average 40 bar
Compression (sea level) New parts - min 36 bar
Fuel Pressure @ 1500 RPM 3 bar
Oil Pressure - normal operation 3.5 bar
Oil Pressure - idle 0.8 bar
Oil Temperature - sump 90-113°C
Water Temperature 77-91°C

 

[big builder]

Capnkel,

I found a guy specializing in detroit marine diesel resonable locally. He said he has many of the parts I will need. Can you think of any other items I should grab off the gradall while I am there that I might need?

Thank you

 

[big builder]

Just a quick update the holiday season and all.

I went and picked up the 6v53 yesterday. I appreciate everyone's advice on the unit itself and I realize it is not the ideal engine but the price was right and it was just around the corner. Quite a load in my half tonne too!

The Owner was very pleasant and included everything associated with the engine. All the cables, wiring, sarter, alternator, remote mount oil filer, the whole dash panel with all guages motor mounts. Big bonus. I am still hoping I can convert this motor for a resonable cost. If not it's perfect for some project since it has basically everything there.... even the air compressor.

I am starting the search for the parts to convert now. Which most likely is a different governor, raw water pump and probably flywheel.

Once I get somewhere I will post again.

On a side note I have spoke to several people about the governor and some say I absolutely have to change and others say just run what on it... any thought here?

Thanks again.

 

[capnkel]

From what i can recall about the govenors on the detroits,the two most common differ greatly in how they work,an automotive type will not stay at a constant rpm,pushing into a swell rpms will drop,coasting down the backside rpms will increase,posibly very high,the marine type governor pretty much stays right on the set rpm,reacting very smoothly to load fluctuations.In you case,if you are operating in calm,no current conditions,either MAY work ok for you,but i'd talk to a good detroit mech that has expierience with both types.