Description

Iveco 8061Si06, 8061Si07, 8061SRi26, 8061SRI27 1998 Workshop Manual

You get a genset engine on the bench, and the timing marks don’t line up with the aftermarket data. That’s when you need the factory document – the 1998 Iveco 8001 Series Workshop Manual for models 8061Si06, 8061Si07, 8061SRi26, and 8061SRI27. 64 pages of specs that were verified at the factory. I’ve torqued enough heads to know that using the wrong torque on page 9 can cost you a cylinder head gasket job the second time around.

Data on Assembly Clearances – Page 3

Page 3 lists the clearance specs for every moving part in the engine. Camshaft journals, piston-to-bore, valve lash – it’s all there. Don’t rely on a generic chart. These numbers are specific to the 8061Si06, 8061Si07, 8061SRi26, and 8061SRI27. If you skip this, you risk a seized camshaft or a piston that slaps. Page 3. Check it before you close the block.

TIGHTENING TORQUES: Page 9 Specs

Page 9 gives the tightening torques for the cylinder head, main bearings, connecting rods, and flywheel. These aren’t suggestions. That head bolt torque is the difference between a seal that lasts and a leak that brings the unit back. The factory manual shows the sequence and the values in Nm. Convert to ft-lb if you need to, but use the numbers from page 9. I’ve seen techs snap bolts because they used a generic table.

Fault Diagnosis – Page 11: Where You Start

Before you pull a single bolt, go to page 11. The fault diagnosis section walks you through symptoms – low power, hard starting, overheating – and points you to the likely cause. This isn’t a guessing game. It’s a flowchart that saves you tearing down the wrong part. The manual treats the 8061Si06 and the other three models separately, so you get the right diagnostic path for your Genset engine variant.

Cylinder Block and Camshaft – Pages 25, 28

The cylinder block section on page 25 covers inspection, honing limits, and deck height. The camshaft on page 28 gives you the journal diameters and lobe lift. If you’re rebuilding, you need these pages. The manual includes the factory wear limits – don’t try to reuse a cam that’s past spec. It will wipe the lobes in 50 hours. The same section on page 28 tells you how to check the camshaft for bend. Straight enough for a genset? That’s defined right there.

Reassembling the Engine – Page 55 Sequence

Page 55 lays out the reassembly sequence in order. Timing gear installation, injection pump mounting, and the alternator alignment (page 57). The manual stresses that you torque the injection pump mounting bolts to page 9 specs. I’ve seen a loose pump throw timing off by four degrees. That’s a no-start condition on a job site. Follow the sequence – it’s there because Iveco engineers found the hard way what order works.

Does This Manual Cover Your Engine Model?

Yes, if you have an Iveco 8001 series genset engine: 8061Si06, 8061Si07, 8061SRi26, or 8061SRI27. This Workshop Manual is specific to those four models. It does not cover the 8131 or 8141 series. If you need those, see the Iveco 8131 I 8141 I 1984 Workshop Manual | OEM Specs or the Iveco EuroTrakker Workshop Manual – Gearbox Repair Specs. For a different application, check the Iveco STRALIS Workshop Manual – 1748 Page Factory Repair Guide. For transmission-related work, you’ll need a separate resource like Manual Transmission documentation or Manual Transmission guides.

Source Authenticity: OEM vs. Aftermarket

This is an original Iveco Aifo publication (publication no. L32022008, dated 10-1998). It’s not a scanned reprint that has lost detail. The factory spec data – assembly clearances, torque values, tool numbers – are printed as the engineers intended. Aftermarket manuals often copy the text but miss the fine print about accident prevention. Look at page 2: it reminds you to wear protective glasses, helmet, gloves, and safety shoes before starting. That safety warning is part of the document, not something a third-party editor would add.

Is this manual only for genset engines?

Yes. It covers the 8061 series engines used in Iveco gensets.

Can I use this for a 8061Si06 in a truck?

No. These engines are configured for genset applications. The manual specifies data for that setup. If you need a truck variant, look for the Iveco 8131 I 8141 I 1984 Workshop Manual | OEM Specs or the Iveco EuroTrakker Workshop Manual – Gearbox Repair Specs. The mounting of the injection pump and timing differs between genset and road versions.

What tools are required?

Page 10 lists the specific fixtures. You’ll need a dial gauge, torque wrench, and the factory timing tool. Don’t improvise – the manual shows the exact tool numbers.

Does the manual include wiring diagrams?

No. This workshop manual focuses on mechanical overhaul. Electrical machine overhaul is on page 55 but covers the alternator and starter. For wiring, you’d need the genset electrical schematic.

You need the factory print to get the job done right. Access the Factory Manual for the Iveco 8001 Series now and keep it on the bench. Don’t trust your rebuild to a photocopy or a generic PDF. This is the real thing – 64 pages, OEM specs, and the only torque values that will keep that cylinder head sealed.