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Daihatsu ROCKY Technical Manual – Supplement B Specifications

Daihatsu ROCKY Technical Manual – if you’re working on one of these, you know the aftermarket crap floating around is a gamble. I’m Mike Callahan, been turning wrenches in San Antonio longer than most kids have been alive. I’ve had to walk techs through nightmare jobs that started with a wrong torque spec from a third-party PDF. This 16-page factory supplement, straight from Daihatsu, is what you want on the bench for any ROCKY from the late 80s through early 90s. Covers the Supplement B – Specifications. No fluff, no reprints – just the numbers you need.

Why This 16-Page Supplement Matters

Every time I see a wheel lug torqued by feel, I cringe. This manual opens with Pre-Delivery Inspection Specifications (page B-2) that give you tire pressures, wheel nut torque of 88.2–117.6 N·m (65–87 ft·lb), and idling speed—850 ± 50 rpm. For the 1.6L HD-E engine, it lists engine oil capacity: 3.8 liters with filter (3.3 on change). That information alone pays for the access when you’re dealing with a seized drain plug or a mystery leak. Without it, you’re guessing. Guessing costs parts and time.

Engine Mechanics: What You Get on Page B-7

The engine section isn’t a full teardown guide – this is a specs supplement. But for the Daihatsu ROCKY with the HD-E engine, you get displacement (1589 cc), bore and stroke (76.0 × 87.6 mm), and compression ratio (9.5:1). If you’re rebuilding the top end, those numbers are your baseline. Pair this supplement with a proper service manual, and you’ve got the foundation. Want cooling system flow rates or ignition timing? Those are on pages B-12 through B-13, covering Cooling, Ignition, Lubrication, Starting, and Charging systems. Don’t trust aftermarket data on something as critical as charging voltage – this gives you the factory spec.

Cooling System and Ignition: Factory Flow Rates?

Aftermarket manuals love to skip over cooling system capacities. Not this one. The COOLING SYSTEM (page B-12) lists the specifics for the radiator and coolant – but the real value is that it links to the engine data so you know your baseline temperature range. For ignition, it includes the system type and dwell angle. If you’re chasing a no-start on a ROCKY, start here before you throw parts at it. And if you need a deeper dive on the radiator hoses and thermostat, grab DAIHATSU ROCKY Cooling System Service Manual”>DAIHATSU ROCKY Cooling System Service Manual – that one’s a companion piece.

3 Critical Fluid Capacities from the Transmission Section

Transmission oil, transfer case, differential – three places where wrong fluid grades wreck bearings. In this supplement: Manual Transmission oil capacity is 1.7 liters, API GL-3 or GL-4, SAE 75W-85 or 75W-90. Transfer oil: 1.4 liters for part-time, 1.7 for full-time. Differential (front 0.9 L, rear 1.95 L) needs Hypoid gear oil API GL-5, SAE 90 or 80W-90. I’ve seen a guy fill a transfer case with ATF because he guessed – that’s a $1500 mistake. This supplement is your insurance. For more depth on manual transmission tear-down, cross-reference with Manual Transmission”>Manual Transmission external guides, but always come back to the factory specs for capacities and grades.

Understand the Wiring Before You Touch It

EFI SYSTEM (page B-9), STARTING SYSTEM, CHARGING SYSTEM – these sections give you the testing parameters. For the EFI, you’ll find fuel pump pressure and injector resistance values. That’s not in a generic Chilton’s. If you’re diagnosing a stumble on a Daihatsu ROCKY, those numbers are gold. And when you’re swapping an alternator, the charging system page tells you output current at specific RPM. No guesswork. For a more focused look at the EFI, pair this with Daihatsu Rocky EFI System Technical Manual”>Daihatsu Rocky EFI System Technical Manual. The wiring diagrams for the ROCKY are complex – having the factory spec for each circuit keeps the smoke inside the wires.

One more tip: always check the Conversion Table section if you’re working on a 1992 model – the torque values occasionally shift. Grab 1992 Daihatsu Rocky Service Manual – Section: Conversion Table”>1992 Daihatsu Rocky Service Manual – Section: Conversion Table to stay safe.

Source Authenticity: Why Factory OEM Beats Aftermarket

I’ve been burned by third-party manuals that copy each other’s typos. This Daihatsu ROCKY Technical Manual is the original OEM supplement – no reprints, no scanned copies of a copy. Every number came from the engineer who designed the ROCKY. When you’re torquing a head bolt or setting a pinion preload, you need the actual factory spec, not a guess. This 16-page document is your cheat sheet for pre-delivery inspection, alignment specs (front wheel toe-in, caster, camber on B-16), and brake system parameters. If you’re a pro, you know why that matters. If you’re a DIYer, this is the difference between a job that holds and one that comes back leaking.

Does this manual cover engine rebuild procedures or just specs?

This is Supplement B – Specifications. It gives capacities, torque values, alignment settings, and fluid grades. For step-by-step rebuild steps, you need the base service manual.

Are the torque values in N·m or ft·lb?

The manual prints N·m, but the conversion is straightforward. Wheel nut torque is 88.2–117.6 N·m, which translates to 65–87 ft·lb. Use a reliable conversion table.

What if my ROCKY is a different year or trim?

This supplement covers the HD-E engine and common configurations from the late 80s and early 90s. For unique trims like the 1992 with a 2.8L diesel, you’ll want a separate diesel supplement. Manual Transmission”>Manual Transmission specifics are for the 1.6L ROCKY only.

How does this compare to a Haynes or Chilton manual?

Night and day. Those aftermarket books compile general data across multiple models. This Daihatsu ROCKY Technical Manual is vehicle-specific, OEM-sourced, and includes the pre-delivery inspection checklist that dealerships used. If you value accuracy over convenience, this is the document.

Bottom line: if you’re into a Daihatsu ROCKY – whether it’s a simple fluid change or a full drivetrain overhaul – this supplement keeps you honest with factory numbers. Don’t trust your work to a recycled internet table. Access the Factory Manual now and have the real specs on your tablet or bench.