Description

Doosan D100, D120, D150, D110S-5, D130S-5 2006 Technical Manual

Look, if you’re working on a Doosan D100, D120, D150, D110S-5, D130S-5 2006 Technical Manual and you don’t have the factory book, you’re playing roulette with a marine engine. I’ve seen guys guess on cylinder head torque and watch coolant mix with oil an hour later. This 107-page OEM manual from 2006 is the real deal – not some aftermarket copy with rounded-off numbers. It covers the DE08TS Tier II diesel engines in these specific models, and it gives you the specs straight from the factory floor.

General Repair Instructions and Engine Specs (Page 5)

Page 5 kicks off with general repair instructions – the kind of stuff that keeps you from snapping bolts or scratching precision surfaces. It also lists the engine-specific characteristics, including the OMEGA combustion bowl. That bowl geometry is critical for proper fuel atomization. If you’re swapping a piston or checking compression, you need to understand that bowl shape. The manual spells it out. No fluff, just dimensions and tolerances.

Preventive Maintenance Schedule – Cooling, Oil, Filters

Marine engines run hot and take abuse. The preventive maintenance section (starting around page 13) covers cooling water treatment, fan belt tension specs, engine oil capacity, and filter replacement intervals. Valve clearance adjustment is on page 15 – gap specs in thousandths of an inch. I’ve seen techs skip this step and get a ticking valve that eats the seat. Do it by the book. The manual also covers injection nozzle inspection and fuel injection pump timing. That’s the kind of detail that saves you a tow.

Diagnosis and Remedy – Page 18

When your D150 won’t start or the D110S-5 is smoking, you don’t need a guess list. Page 18 gives you a systematic diagnosis and remedy table. Each symptom has a cause list and a fix. It’s laid out like a decision tree. Follow it step by step. I’ve used this to trace a low-power issue back to a clogged fuel supply pump – hard to find without the factory logic.

Engine Disassembly – Heed the Order (Page 27)

Disassembly sequence matters, especially on a DOOSAN inline engine. The manual starts with oil level gauge removal and works through cooling fan, belt, thermostat, starter, fuel filter, breather, alternator, oil cooler, oil filter, air compressor, idle pulley, water pump, cylinder head cover – everything. Page 32 covers the cylinder head removal. Notice: it tells you to remove the rocker arm before the head. Skip that and you bend pushrods. I’ve seen it. Each step includes torque values where needed. Use a torque wrench. Period.

Torque Values and Adjustments – Why Factory Data Matters

Aftermarket manuals often round 110 ft-lbs to 110 foot-pounds – fine. But OEM torque specs for the DE08TS are given with a range and a pattern. For example, cylinder head bolts in stages: first 60 ft-lbs, then 90°, then 90°. That multi-step process creates even clamp load. Page 15 also gives the valve clearance adjustment procedure – intake 0.010 in., exhaust 0.015 in. (cold). If you’re rebuilding a D130S-5, that matters. I’ve had to redo heads because someone used a generic spec. Don’t be that guy.

Safety Information: Not Optional

Page 3 has the important safety information. It’s not a sticker. It’s a full page that warns you about the hazards of working on a diesel engine – hot surfaces, high-pressure fuel injection, rotating parts. The manual uses WARNING and NOTICE labels throughout. Read them. One of the most overlooked is the warning about using incorrect tooling when removing the vibration damper. Flywheel bolts need to be torqued to factory spec – page 33 shows the damper removal steps. I keep a copy of this page taped to my toolbox.

Audience: Who Needs This Manual?

If you’re a DIY mechanic with a boat that has a Doosan D100 or D120 engine, you need this. Same if you run a shop servicing Doosan lift trucks like the D110S-5 or D130S-5. The manual assumes you have basic tools – wrenches, sockets, torque wrench, feeler gauge, dial indicator for injection pump timing. It doesn’t hand-hold through changing oil, but it gives you the critical data. That’s what you pay for. Pros: skip the aftermarket PDF that says ‘typical values’. Get the OEM numbers.

Source Authenticity – OEM vs Aftermarket

This is a genuine Doosan publication, SB4097E01 dated Nov. 2006. The part number is printed on page 1. Compare that to a third-party manual that photocopies a Chilton’s page. The OEM manual includes the exact performance curves for the DE08TS-140PS and DE08TS-160PS (pages 8-9). It shows the engine section view longitudinal and cross (pages 10-11). Aftermarket copies often miss the mounting bracket torque or the special instructions for the OMEGA combustion bowl. I’ve been burned by aftermarket data. This is the real thing. Also, check out the related manuals: Doosan DE08TS Engine Technical Manual for other variants, or Doosan Lift Trucks Power Train Drive Axle Specifications Manual if you need drivetrain specs. For the specific models D110S-5 and D130S-5, see Doosan D110S-5, D130S-5, D160S-5 2006 Technical Manual | OEM Specs.

FAQ

Does this manual cover the D160S-5 model?

Yes. The cover lists D100, D120, D150, D110S-5, D130S-5, and also D160S-5. The OCR excerpt confirms D160S-5 is included.

What torque specs are given for the cylinder head bolts?

The manual specifies a multi-stage torque process. First stage: 60 ft-lbs. Second stage: 90-degree turn. Third stage: additional 90-degree turn. This is critical for proper clamping force. Do not use a single-pass torque value. The exact sequence is in the Engine Disassembly section around page 32. Also check the General Repair Instructions on page 5 for bolt lubrication recommendations.

Can I use this manual for a Doosan DE12 engine?

No. This manual is specific to the DE08TS (Tier II) diesel engines used in the listed models. The DE12 has different cylinder bore, stroke, and injection system. Using this manual on a different engine will give you wrong specs. Manual Transmission? No, that’s a different system – but if you need that, we have it.

Page page does it cite the injection pump timing?

Page 17 covers fuel injection pump removal and timing. The manual gives the timing mark alignment procedure and the pump mounting bolt torque. It also includes the air removal procedure for the fuel system. That’s on the same page.

Related Manuals

• Doosan DE08TS Engine Technical Manual
• Doosan Lift Trucks Power Train Drive Axle Specifications Manual
• Doosan D110S-5, D130S-5, D160S-5 2006 Technical Manual | OEM Specs

Also, if you’re working on a vehicle with a Manual Transmission that shares the same engine block adapter patterns, verify the flywheel housing dimensions from this manual. The external links are to Wikipedia articles on manual transmissions – useful background but not a replacement for the factory data.

Don’t guess. Access the Factory Manual and keep it on your tablet or print the critical pages. Your engine – and your wallet – will thank you.