Description

Daihatsu G10 1978 Technical Manual

I have torqued more head bolts than most people have had hot meals. When a Daihatsu G10 1978 Technical Manual lands on my bench, I don’t treat it like a novelty. This is the factory book for the Charade – 185 pages of OEM data that tells you exactly how Daihatsu designed the Engine, the Valve actuating mechanism, the Cooling system, and the Fuel system. No aftermarket translation. No third-party shortcuts. If you are working on a G10 and you don’t have this, you are guessing. And I don’t let my junior techs guess.

Valve Actuating Mechanism: What the Factory Specifies

If you have ever had a valve train noise that won’t go away, it’s because someone guessed at the clearance. This manual gives you the valve adjustment procedure from the factory. The ENGINE chapter covers the valve actuating mechanism – camshaft timing, rocker arm ratios, and the specific clearances. I trust that data because it came from Daihatsu Motor Co., not from a reprint house. You set those valves with a feeler gauge and the right torque on the rocker shaft bolts, and the engine runs quiet.

Cooling System and Fuel System: Two Chapters You’ll Use

The cooling system section walks through the water pump, thermostat, and radiator cap pressure. Fuel system covers the carburetor and mechanical fuel pump. If you are chasing a hot-start issue or a lean mixture, these two chapters save you hours of chasing ghosts. Use the fuel system diagrams to trace vapor lines. The 1978 Charade had an evaporative emission system – that is in the EXHAUST EMISSION CONTROL section, but the base fuel routing is in the FUEL SYSTEM chapter.

Do You Need the Tightening Torques?

Absolutely. The last pages of this manual list the tightening torques for every major fastener on the G10. I have seen cylinder head gasket failures caused by a guy using a calibrated elbow instead of a proper torque wrench. The SERVICE SPECIFICATIONS and TIGHTENING TORQUES sections give you the numbers. Head bolts, main bearing caps, connecting rods – they are all there. Do not start an engine rebuild without confirming those torques against this OEM data.

Periodic Maintenance Check Procedures

The manual includes a periodic maintenance schedule with check and adjustment procedures. Brake drum-to-lining clearance adjustment is in there. That is the kind of information that keeps a Charade on the road for another 50,000 miles without pulling everything apart. Adjust the parking brake cable correctly the first time with the factory procedure, not with a universal youtube video.

3 Reasons to Trust This OEM Technical Manual

First, Daihatsu printed this in June 1978 – it is the original technical information book, not a reprint. Second, the wiring diagrams and fuse block layouts come from the BODY ELECTRICAL SYSTEM chapter. Third, the ENGINE section includes sectional views of the engine proper and the valve actuating mechanism. No other source gives you that level of detail for a 1978 G10. If you need a Daihatsu Rocky Supplement B Specifications Manual for a different project, check our related manuals. For emission control data on the Rocky, see the Daihatsu Rocky Emission Control System Manual or the DAIHATSU F300 HD-ENGINE EMISSION CONTROL SYSTEMS.

The transmission section includes shift linkage adjustments. For more background on manual gearboxes, check Manual Transmission on Wikipedia. The differential and drive shafts are also covered. Understanding the Manual Transmission is essential when diagnosing drivetrain noise.

Trust the factory data.

Frequently Asked Questions

Does this manual include wiring diagrams?

Yes, in the BODY ELECTRICAL SYSTEM chapter.

What is the difference between this technical manual and a workshop manual?

The technical manual focuses on design, operation, and periodic maintenance. It gives you the specifications, tightening torques, and system descriptions. A workshop manual covers removal, installation, disassembly, and repair procedures – which this book references but does not duplicate. For a complete rebuild, you need both. This technical manual is what I use for initial inspection and to verify specs before I start R&R work. It tells you why the system works; the workshop manual tells you how to fix it. If you only have one, start with this one to understand the vehicle, then get the workshop manual for the heavy lifting.

If you are working on a G10, stop using aftermarket copies. Access the Factory Manual from AutoRepairManuals today and get the real OEM data.