Skip to main content 

Komatsu 4D102 Manuals and Specs - amp

Welcome you're on our amp page providing Komatsu 4D-102 engine Manuals, Specs and bolt torques

Inter Club Navigation
 Home Page   Membership   Contact Us    Club Matters   Engine List   Technical  Videos 

Click for:
Info on
basic engine specs

Basic specs are free
 and open to everyone

They usually include
engine images, displacement, 
dimensions and weight, 
essential bolt tightening torques, 

characteristics of the engine 
e.g. its power and torque. 

Essential bolt tightening torques are
 main bearing cap bolt torque, 
 connecting rod cap bolt torque 
 and the cylinder head bolt torques.
 


 
Click for: Cummins engine specs   Click for: CAT Diesel engine Specs   Click for: Detroit Diesel specs   Click for: ADE diesel engine specs   Click for: Deutz diesel engine specs

Click for:
Info on
manuals and books

You need club membership 
for your engine manuals or parts books.

Subscribe for Membership 
if you need manuals continually

or 

Take a one week membership window
 if you only need manuals 
 for a specific engine.
 


 

Workshop manual, specs and bolt torques for Komatsu 4D102 series engines - amp

 
Click image:
to view
click text to close
 
Click for:
Other Diesel Engine
manuals and specs
 

Komatsu 4D102 Essential Diesel Engine Bolt Tightening Torques

 
Komatsu 4D102
Main Bearing Bolts

4D102E-1 Between Engine 
Nos: 26200282 - 26224124

S4D102E-1 Between Engine 
Nos: 26200163 - 26221675 

Step1 = 60 Nm
Step2 = 90 Nm
Step3 = 178 Nm

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Main Bearing Bolts

From 4D102E-1 
Engine No: 26224125 up

From S4D102E-1 
Engine No: 26221676 up
From SAA4D102E-2 up

Step1 = 60 Nm
Step2 = 90 Nm
Step3 = +90 degrees

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Connecting Rod Bolts 
and Cylinder Head Bolts

Connecting Rod Bolts
Step1 = 30 Nm
Step2 = 60 Nm
Step3 = Tighten 60

Cylinder Head Bolts
Step1 = tighten all 90 Nm
Step2 = check all
Step3 = six long bolts only to 120 Nm 
Step4 = tighten all bolts further 90 degrees
Step5 = check all bolts at 136 Nm 
(if bolt(s) found loose at 136 Nm redo those only from step1)

Click for Komatsu 4D102 
series engine manuals 
and specs
 

Komatsu 4D102 Diesel Engine workshop repair Manuals

 
Komatsu 102 Series Introduction, Testing and Adjusting - 286 pages

Komatsu 102 Series Workshop Manual - Disassembly and Assembly section - 431 pages

Komatsu 102 Series, Workshop Manual - Repair of Components and Maintenance section - 88 pages

Komatsu 4D102 Diesel Engine Specs

 
Komatsu 102 series
Displacement, bore and stroke

Displacement
4D-102 - 3.9 liter, 238 CID

Bore
4.02", 102 mm 

Stroke
4.72", 120 mm

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Arrangement

4 cylinder in line turbo engine

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Power

97-112 kW, 130-150 hp 
@ 2500 rpm

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Torque

207-221 lb.ft, 280-300 Nm 
@ 1500 rpm

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102 
Dimensions

approx
length = 790 mm, 31 in
width  =  711 mm, 28 in
height =  894 mm, 35 in

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102 
Weight

approx
390 Kg, 860 lb

Click for Komatsu 4D102 
series engine manuals 
and specs
 
Komatsu 4D102
Compression ratio

16.5:1

Click for Komatsu 4D102 
series engine manuals 
and specs
 

Komatsu 102 series Diesel Engine Images

 
Komatsu 6D102 serial number plate - click for specs and manuals

Komatsu 102 series engine, front view - click for specs and manuals

Komatsu 6D102 engine in for repairs, left view - click for specs and manuals

WIP Komatsu 6D102 engine in for repairs, right view - click for specs and manuals




 
Membership
 Membership - Sign Up  More about Membership  Login 
 
Home Page 
  Home - Desktop    Home - Mobile 
 
Engine List 
  Engine List - Desktop    Engine List - Mobile 
 
Club Matters
More About Us  Terms and Conditions  Acknowledgements  Site Map  Privacy Policy 


Page Revision #11.5RsC AMP 10-18