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Detroit Diesel 8.2 Liter engine specs at Barrington Diesel Club.

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At Barrington diesel club bolt tightening torques and fuel consumption rates are provided for many engines beginning with Detroit Diesel,Cummins, and ADE. Our Web Log provides a forum for discussing diesel engine features and problems. We also provide general technical data such as Standard Torques for bolts and nuts, Properties of materials like the melting and boiling points of metals, metric to imperial cross references, SAE Flywheel housing sizes, as well as providing articles of general interest like discussions on fuel consumption and Detroit Diesel Air Box Pressures.

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Links to: Detroit Diesel 8.2 Liter (Fuel Pincher) Spec Sheets and Advertising Images

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Altitude Corrections

8.2 Cut away image

8.2 front image

8.2 rear image

8.2 automotive performance curve

8.2 automotive spec sheet

8.2 Industrial Engine performance curve

8.2 Industrial Engine spec sheet

8.2 Marine Engine spec sheet P1

8.2 Marine Engine spec sheet P2

The Images in this section are extracts from Detroit Diesel spec sheets and advertising material. Their use is for reference purposes only and does not imply dealership. Further the images and spec sheets themselves may be out of date, so no reliance (except for reference purposes) can be placed upon any data or information given in them.

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Detroit Diesel 8.2 liter - Automotive Engine - Power at sea level.
Naturally aspirated	8.2N - 4A53 Injectors	Turbo charged	8.2T - 4C65 Injectors
rpm	1200	1600	2000	2400	2800	rpm	1200	1600	2000	2400	2800
Horse Power SAE	87	120	145	163	170	Horse Power SAE	105	155	187	212	230
Power Kw	65	89	108	122	127	Power Kw	78	116	139	158	172
.	.	.	.	.	.	.	.	.	.	.	.
Torque Ft lbs	390	386	375	357	343	Torque Ft lbs	450	492	492	468	431
Torque Nm	529	523	508	484	465	Torque Nm	610	667	667	635	584
.	.	.	.	.	.	.	.	.	.	.	.
Detroit Diesel 8.2 liter - Fuel consumption at full power.
rpm	1200	1600	2000	2400	2800	rpm	1200	1600	2000	2400	2800
lbs/BHP hour	0.375	0.372	0.377	0.390	0.400	lbs/BHP hour	0.384	0.363	0.358	0.371	0.390
Detroit Diesel 8.2 liter - Max torque at full power.
Ft lbs	390 @ 1200 rpm	Ft lbs	495 @ 1700 rpm
Nm	529 @ 1200 rpm	Nm	671 @ 1200 rpm
Naturally aspirated	8.2N - 4A53 Injectors	Turbo charged	8.2T - 4C65 Injectors

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Detroit Diesel 8.2 liter - Automotive Engine - Power at sea level.

Naturally aspirated

8.2N - 4A53 Injectors

Turbo charged

8.2T - 4C65 Injectors

rpm

1200

1600

2000

2400

2800

rpm

1200

1600

2000

2400

2800

Horse Power SAE

120

145

163

170

Horse Power SAE

105

155

187

212

230

Power Kw

108

122

127

Power Kw

116

139

158

172

Torque Ft lbs

390

386

375

357

343

Torque Ft lbs

450

492

468

431

Torque Nm

529

523

508

484

465

Torque Nm

610

667

635

584

Detroit Diesel 8.2 liter - Fuel consumption at full power.

rpm

1200

1600

2000

2400

2800

rpm

1200

1600

2000

2400

2800

lbs/BHP hour

0.375

0.372

0.377

0.390

0.400

lbs/BHP hour

0.384

0.363

0.358

0.371

0.390

Detroit Diesel 8.2 liter - Max torque at full power.

Ft lbs

390 @ 1200 rpm

Ft lbs

495 @ 1700 rpm

529 @ 1200 rpm

671 @ 1200 rpm

Naturally aspirated

8.2N - 4A53 Injectors

Turbo charged

8.2T - 4C65 Injectors

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Physical Characteristics Detroit Diesel 8.2 Liter engine
Weight Natural engine	1096 lbs	497 kgs
Weight Turbo engine	1121 lbs	508 kgs
Length	35"	889 mm
Width	32"	801 mm
Height	33"	826 mm
Compression Ratio Naturally aspirated engines	18.3:1
Compression Ratio Turbo engines	16.9:1
Displacement	500 Cu Inches	8.2 liter
Bore	4.250 inches	108 mm
Stroke	4.41 inches	112 mm

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Physical Characteristics Detroit Diesel 8.2 Liter engine

Weight Natural engine

1096 lbs

497 kgs

Weight Turbo engine

1121 lbs

508 kgs

Length

35"

889 mm

Width

32"

801 mm

Height

33"

826 mm

Compression Ratio Naturally aspirated engines

18.3:1

Compression Ratio Turbo engines

16.9:1

Displacement

500 Cu Inches

8.2 liter

Bore

4.250 inches

108 mm

Stroke

4.41 inches

112 mm

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Torque specifications Detroit Diesel 8.2 Liter Engine
Torques (Non standard)	Bolt Size	Ft Lbs	Nm
* Main Bearing Bolts Inner	M14 x 2.0 x 137	110	150
* Main Bearing Bolts Outer	M12 x 1.75 x 70	74	100
Con Rod bolts / Big Ends	7/16 NF (20 tpi)	67	90
* Cylinder head bolts long	M14 x 2.0 x 160	145	196
* Cylinder head bolts short	M14 x 2.0 x 130	145	196
* Crankshaft Pulley Bolt	M20 x 2.5 x 60	277	375
Injector clamp bolts	M6 x 1.0 x 30	8	10
* Flywheel bolts short	M12 x 1.75 x 50	70	95
* Flywheel bolts long	M12 x 1.75 x 83	70	95
Torques (Non standard)	Bolt Size	Ft Lbs	Nm
.	.	.	.
Torque Note 1 *	Lubricate with 'International Compound No 2, or Copper-Slip' or equivalent.
Torque Note 2	Treat other steel to steel fastenings as standard torques

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Torque specifications Detroit Diesel 8.2 Liter Engine

Torques (Non standard)

Bolt Size

Ft Lbs

* Main Bearing Bolts Inner

M14 x 2.0 x 137

110

150

* Main Bearing Bolts Outer

M12 x 1.75 x 70

100

Con Rod bolts / Big Ends

7/16 NF (20 tpi)

* Cylinder head bolts long

M14 x 2.0 x 160

145

196

* Cylinder head bolts short

M14 x 2.0 x 130

145

196

* Crankshaft Pulley Bolt

M20 x 2.5 x 60

277

375

Injector clamp bolts

M6 x 1.0 x 30

* Flywheel bolts short

M12 x 1.75 x 50

* Flywheel bolts long

M12 x 1.75 x 83

Torques (Non standard)

Bolt Size

Ft Lbs

Torque Note 1 *

Lubricate with 'International Compound No 2, or Copper-Slip' or equivalent.

Torque Note 2

Treat other steel to steel fastenings as standard torques

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Min-Max engineering specifications Detroit Diesel 8.2
Main Component	Block Bore	Min mm	Max mm	Min inches	Max inches
Block	Standard Bore Grade A Piston	108.000	108.016	4.2520	4.2525
Block	Standard Bore Grade B Piston	108.017	108.033	4.2526	4.2532
Block	Standard Bore Grade C Piston	108.034	108.050	4.2533	4.2539
Block	1st Oversize Bore (0.127 mm 0.005 inch) Grade B Piston	108.144	108.160	4.2576	4.2582
Block	2nd Oversize Bore (0.254 mm 0.010 inch) Grade B Piston	108.271	108.287	4.2626	4.2632
Block	3rd Oversize Bore (0.508 mm 0.020 inch) Grade B Piston	108.525	108.541	4.2726	4.2732
Block	Out of Round	.	0.025	.	0.001
Block	Taper	.	0.025	.	0.001
.	.	.	.	.	.
Main Component	Camshaft Bore	Min mm	Max mm	Min inches	Max inches
Block	Standard	69.12	69.15	2.7213	2.7224
Block	Oversize 0.254mm - 0.010 inches	69.37	69.40	2.7311	2.7323
Block	Surface finish	.	4.0 micrometers	.	160.0 microinches
.	.	.	.	.	.
Main Component	Camshaft Bushing Bore	Min mm	Max mm	Min inches	Max inches
Block	Standard	65.19	65.22	2.5665	2.5677
Block	Surface finish	.	0.8 micrometers	.	32.0 microinches
.	.	.	.	.	.
Main Component	Oil Pump Bore	Min mm	Max mm	Min inches	Max inches
Block	Standard	79.400	79.438	3.1260	3.1275
Block	Oversize 0.254 mm - 0.010 inches	79.654	79.692	3.1360	3.1375
Block	Oversize 0.508 mm - 0.020 inches	79.908	79.946	3.1460	3.1475
Block	Surface finish	.	4.0 micrometers	.	160.0 microinches
Block	Oil Pump Rework Locating Criteria for centering:
Block	Between vertical C/L of bushing and vertical C/L of oil pump inner G-rotor hub.	3.77	3.85	0.1484	0.1516
Block	Radius from center of camshaft bore to center of oil pump bushing.	144.949	145.051	5.7067	5.7107
Main Component	Oil Pump Bushing Bore	Min mm	Max mm	Min inches	Max inches
Block	Standard	76.20	76.23	3.0000	3.0012
Block	Surface finish	.	0.8 micrometers	.	32.0 microinches
.	.	.	.	.	.
Main Component	Item	Min mm	Max mm	Min inches	Max inches
Crankshaft	Main Journal Std.	99.975	100.000	3.9360	3.9370
Crankshaft	Crank Pin Std.	69.975	70.000	2.7549	2.7559
Crankshaft	Main Journal Undersize 0.254 mm - 0.010 inches	99.721	99.746	3.9260	3.9270
Crankshaft	Crank Pin Undersize 0.254 mm - 0.010 inches	69.720	69.746	2.7449	2.7459
Crankshaft	Surface finish	.	0.32 micrometers	.	13.0 microinches
Crankshaft	Note #1	No rework of fillet areas is allowed! Scrap crankshaft if damage is found before or after rework.
Crankshaft	Note #2	Crankshaft straightening is not allowed!
Crankshaft	Note #3	The crankshaft and grinding wheel must be rotated in a clockwise direction (as seen from front of crank).
.	.	.	.	.	.
Main Component	Item	Min mm	Max mm	Min inches	Max inches
Cylinder Head	Injector Tip Protrusion	3.04	3.79	0.120	0.149
Cylinder Head	Firedeck Flatness
Cylinder Head	Transversely	.	0.10	.	0.004
Cylinder Head	Longitudinally	.	0.15	.	0.006
Cylinder Head	Valve Seat angles:
Cylinder Head	Exhaust - Face	45°
Cylinder Head	Exhaust - Seat	46°
Cylinder Head	Intake - Face	30°
Cylinder Head	Intake - Seat	31°
.	.	.	.	.	.
Main Component	Backlash	Min mm	Max mm	Min inches	Max inches
Oil Pump	Drive Gear	0.076	0.152	0.003	0.006
.	.	.	.	.	.

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Min-Max engineering specifications Detroit Diesel 8.2

Main Component

Block Bore

Min mm

Max mm

Min inches

Max inches

Block

Standard Bore Grade A Piston

108.000

108.016

4.2520

4.2525

Block

Standard Bore Grade B Piston

108.017

108.033

4.2526

4.2532

Block

Standard Bore Grade C Piston

108.034

108.050

4.2533

4.2539

Block

1st Oversize Bore (0.127 mm 0.005 inch) Grade B Piston

108.144

108.160

4.2576

4.2582

Block

2nd Oversize Bore (0.254 mm 0.010 inch) Grade B Piston

108.271

108.287

4.2626

4.2632

Block

3rd Oversize Bore (0.508 mm 0.020 inch) Grade B Piston

108.525

108.541

4.2726

4.2732

Block

Out of Round

0.025

0.001

Block

Taper

0.025

0.001

Main Component

Camshaft Bore

Min mm

Max mm

Min inches

Max inches

Block

Standard

69.12

69.15

2.7213

2.7224

Block

Oversize 0.254mm - 0.010 inches

69.37

69.40

2.7311

2.7323

Block

Surface finish

4.0 micrometers

160.0 microinches

Main Component

Camshaft Bushing Bore

Min mm

Max mm

Min inches

Max inches

Block

Standard

65.19

65.22

2.5665

2.5677

Block

Surface finish

0.8 micrometers

32.0 microinches

Main Component

Oil Pump Bore

Min mm

Max mm

Min inches

Max inches

Block

Standard

79.400

79.438

3.1260

3.1275

Block

Oversize 0.254 mm - 0.010 inches

79.654

79.692

3.1360

3.1375

Block

Oversize 0.508 mm - 0.020 inches

79.908

79.946

3.1460

3.1475

Block

Surface finish

4.0 micrometers

160.0 microinches

Block

Oil Pump Rework Locating Criteria for centering:

Block

Between vertical C/L of bushing and vertical C/L of oil pump inner G-rotor hub.

3.77

3.85

0.1484

0.1516

Block

Radius from center of camshaft bore to center of oil pump bushing.

144.949

145.051

5.7067

5.7107

Main Component

Oil Pump Bushing Bore

Min mm

Max mm

Min inches

Max inches

Block

Standard

76.20

76.23

3.0000

3.0012

Block

Surface finish

0.8 micrometers

32.0 microinches

Main Component

Item

Min mm

Max mm

Min inches

Max inches

Crankshaft

Main Journal Std.

99.975

100.000

3.9360

3.9370

Crankshaft

Crank Pin Std.

69.975

70.000

2.7549

2.7559

Crankshaft

Main Journal Undersize 0.254 mm - 0.010 inches

99.721

99.746

3.9260

3.9270

Crankshaft

Crank Pin Undersize 0.254 mm - 0.010 inches

69.720

69.746

2.7449

2.7459

Crankshaft

Surface finish

0.32 micrometers

13.0 microinches

Crankshaft

Note #1

No rework of fillet areas is allowed! Scrap crankshaft if damage is found before or after rework.

Crankshaft

Note #2

Crankshaft straightening is not allowed!

Crankshaft

Note #3

The crankshaft and grinding wheel must be rotated in a clockwise direction (as seen from front of crank).

Main Component

Item

Min mm

Max mm

Min inches

Max inches

Cylinder Head

Injector Tip Protrusion

3.04

3.79

0.120

0.149

Cylinder Head

Firedeck Flatness

Cylinder Head

Transversely

0.10

0.004

Cylinder Head

Longitudinally

0.15

0.006

Cylinder Head

Valve Seat angles:

Cylinder Head

Exhaust - Face

45°

Cylinder Head

Exhaust - Seat

46°

Cylinder Head

Intake - Face

30°

Cylinder Head

Intake - Seat

31°

Main Component

Backlash

Min mm

Max mm

Min inches

Max inches

Oil Pump

Drive Gear

0.076

0.152

0.003

0.006