Description

Uralaz 4320-02 Service Manual

If you’re tearing into a Uralaz 4320-02 without the factory book, you’re betting someone else’s guesswork against your own time and parts. I’ve seen too many guys skip the torque table and wonder why the head gasket blew at 500 miles. The Uralaz 4320-02 Service Manual is the only document that gives you the exact numbers the engineers specified – not some aftermarket reprint that leaves out critical steps. This 146-page manual covers everything from the engine (page 21) to the final appendices. You get the seventh edition, corrected and enlarged, so you’re working with the latest factory revisions.

Engine Overhaul: Pages 21–49

Engine section starts with specs for the 4320-02 powerplant: bore, stroke, compression ratio, valve clearances – all in one place. You’ll find the complete procedure for removal, disassembly, inspection, and reassembly. Torque sequence for cylinder head bolts? It’s there, with the correct angle-tighten steps. Don’t assume you can wing it; the manual tells you which bolts to replace and which can be reused. For a proper rebuild, you need the factory tolerances, not a generic range. Pair this with the URAL 4320/4420 Parts Catalog to get the exact part numbers for gaskets, bearings, and pistons.

What Torque Values Are Listed?

Torque specs are the backbone of any engine or transmission job. Appendix 1 on page 132 lists the torques for all main threaded joints in N·m and kgf·m. That includes the cylinder head, main bearing cap, connecting rod, flywheel, and transmission-to-engine bolts. I’ve seen generic manuals list a single value for “engine bolts” – that’s useless. The Uralaz manual gives each fastener its own spec. If you’re working on the steering gear or brake calipers, those torques are in the respective sections. Page 132 is your go-to for critical fasteners; don’t tighten anything without checking it first.

7 Appendices You Need to Check

Appendices start on page 132 and run through page 138. That’s seven pages of reference data that can save you days of chasing down info. Appendix 4 covers wire colouring (page 134) – essential when you’re tracing electrical faults or adding accessories. Appendix 7 lists identification bearings, so you know which bearing is which without guessing. Appendix 8 gives you the exact fuels, lubricants, and special fluids specified for the 4320-02. Using the wrong gear oil can wreck a transmission; the manual tells you the correct viscosity and API ratings. Appendix 10 covers additional design features that often trip up first-time owners.

Get the Right Transmission Data

Power Transmission section starts on page 49. It covers the clutch, five-speed gearbox, transfer case, and driveshafts. Shifting issues? The troubleshooting table helps you diagnose syncro wear, shift linkage problems, or clutch drag. If you need to split the gearbox, the manual gives you the disassembly sequence and bearing preload adjustments. Understanding the basics of a Manual Transmission helps, but this manual gives you the specific Uralaz gearbox details – including the shift fork clearances and the correct lubricant capacity. For a general refresher on how gearboxes work, check Manual Transmission external resource, but the service manual is your step-by-step repair guide.

Braking System: Factory Procedure

Brakes are safety-critical, so the manual doesn’t cut corners. Section 5 covers the braking system from page 61 through page 73. You get the drum brake adjustment procedure, air system plumbing, and bleeding sequence. The manual specifies the minimum lining thickness and maximum drum runout. If you’re replacing master cylinder or wheel cylinders, the torque for the mounting bolts is right there. Don’t trust aftermarket data for brake system torque – I’ve seen variations of 20% that can lead to leaks. Stick with the factory numbers.

Why OEM Beats Aftermarket Reprints

This is the genuine factory service manual, not a scanned-and-retyped copy. The seventh edition includes corrections from earlier runs. Aftermarket manuals often combine specs from multiple models and leave out model-specific torque values or wiring colours. The Uralaz 4320-02 has its own wire code scheme; Appendix 4 shows every wire colour for the entire vehicle. No guesswork. When you buy from AutoRepairManuals, you get the exact PDF that URALAZ issued. No reprints, no faded diagrams, no missing pages.

Torque specs matter. Page 132.

Related Manuals You Might Need

For other vehicles in your fleet, check these titles: White Outdoor LT-5 – 700 Series Rider Service Manual for lawn tractors, and Maruti MB308 Service Manual Procedures and Repair – Section: Section 8A Wiring D for passenger car electrical diagnostics. Each is a factory-original document, not a generic guide.

Frequently Asked Questions

Does this manual cover the KAMAZ-740 engine?

No, it covers the Uralaz 4320-02 engine only.

Are wiring diagrams included?

Yes, the Electrical Equipment section starts on page 74 and includes wire colouring in Appendix 4 on page 134. You’ll find the complete wiring schematic for the 4320-02 model, including colour codes for each circuit. This is critical when tracing a short or installing accessories. Don’t rely on generic diagrams – factory wire colours can differ between production years. The manual also covers troubleshooting for starting and charging systems, plus the alternator and starter motor specifications. With the wire colouring appendix, you can identify each wire from the tail lights to the dashboard without cutting insulation.

Can I use this manual for the Uralaz 4320-01?

The 4320-02 has several updates in the engine and electrical systems. While some sections overlap, use the -02 manual for accurate torque and wiring data on your specific model.

What is the publication year?

The manual is the seventh edition, corrected and enlarged, published in 1992. It covers all production changes up to that date.

If you want to avoid guesswork and keep that Uralaz on the road, get a copy. Access the Factory Manual from AutoRepairManuals and have the specs at your fingertips.