Description

Haynes MGB, MG Midget, Austin-Healey Sprite, Mini, Morris Minor 1985 Repair Manual

Working on a British car from the 60s or 70s means dealing with rust, Lucas wiring, and aftermarket parts that never fit right the first time. I’ve seen guys spend three hours trying to time an MGB with a generic manual that says “set the points to spec” without giving the spec. That’s wasted billable time. This 1985 Haynes MGB, MG Midget, Austin-Healey Sprite, Mini, Morris Minor 1985 Repair Manual gives you the exact numbers from the factory—no guessing, no translating metric to imperial because it’s already in the units you need. 293 pages of real procedures, not philosophy. Every torque value, every clearance, every wiring color code was pulled from the OEM documentation when these cars were still in production. You want to pull a cylinder head on a 1275 Sprite? Page 81 will tell you the sequence and the foot-pounds. That’s the difference between a head gasket that lasts and one that leaks after 500 miles.

Engine Overhaul: What the Factory Specs Tell You

The A-series engine (used in Mini, Sprite, Midget, Morris Minor) has specific bearing clearance limits and crank end float numbers that you measure with a feeler gauge, not a prayer. This manual walks through the full teardown with the required tool list—ring expander, piston clamp, dial bore gauge. It covers the 948, 1098, 1275, and 1275 MG variants. Each engine variant gets its own torque table for head bolts, main bearing caps, and flywheel. If you’re swapping a 1275 into a Morris Minor, the swap section tells you which engine mounts and radiator hoses interchange. You get the 1985 factory updates, including the later emissions plumbing on North American cars. No fluff—just the sequence, the shim thickness, and the warning about breaking the distributor clamp bolt because it’s seized.

Torque Values and Clearances: Why You Need the 1985 Edition

Earlier Haynes editions sometimes used approximate ranges. By 1985, they tightened up. The manual lists torque specs for every threaded fastener—head bolts, manifold nuts, flywheel bolts, suspension pivot bolts, brake caliper brackets. The MGB overdrive unit has specific torque for the solenoid cover plate that guys regularly overtighten and crack. Page 293 (index) cross-references all torque tables by component. If you’re working on an MG Midget front suspension, the kingpin swivel pin nut torque is 30-35 ft-lb, not “tighten until it feels right.” Aftermarket manuals skip these details. This one doesn’t.

Does This Manual Cover Electrical Systems?

Yes, and the wiring diagrams are worth the price if you’ve ever chased a short on a Morris Minor where the previous owner used house wire. The manual includes full-color (well, black-and-white but labeled) schematics for each model. The Mini, MGB, and Sprite all have different fuse box layouts. The 1985 edition includes the forward-pivot alternator conversion that British cars often got retrofitted with. Test procedures for the SU fuel pump, starter solenoid, and voltage regulator are given step by step. One thing I like: they tell you the minimum wire gauge to use when replacing harness sections. That saves you from melting a 14-gauge wire on a 30-amp circuit.

3 Reasons to Trust a Haynes OEM-Licensed Manual

First, the publishing date. 1985 means these cars were still on the road, and Haynes had access to the factory build sheets. Second, the page count—293 pages—means every system gets a separate chapter: engine, fuel, cooling, clutch, transmission, rear axle, suspension, brakes, electrical, bodywork. Third, the model coverage includes the Morris Minor 1000, the MGB rubber-bumper cars, the Mini Clubman, and the Austin-Healey Sprite MKIV. No other single manual covers all these with the same level of detail. Aftermarket companies reprint generic specs and call it a day. Haynes doesn’t. If you’re restoring a 1968 MG Midget, you need this edition, not a 1990 reprint that cut corners.

Suspension and Brake Repairs: Step-by-Step Procedures

The manual dedicates a full chapter to the torsion bar front suspension on the Morris Minor and the coil-spring setup on the Mini/Midget. Rear axle removal procedure for the MGB requires dropping the entire subframe—the manual lists the jacking points and the order of fastener removal. Brake system overhaul includes the Lockheed master cylinder rebuild, the servo unit (if fitted), and the rear drum adjustment sequence. Factory bleeding procedure for the MGB GT with the remote reservoir. You get the shim specs for the Mini front subframe alignment. 15 pages on brakes alone.

FAQ

Does this manual cover the MG Midget 1500 (1975-1979)?

Yes. It includes the Triumph-based 1500 engine used in the later Midget, with torque specs for the overhead cam timing chain and the specific ignition timing settings for California emissions.

What about carburetor adjustments on the Mini?

Full. HS2 and HS4 SU carburetor tuning, float height, needle selection, and the factory recommended idle mixture screw turns for the 998 and 1275. Page 112.

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For more background on the history of automotive repair documentation, see the Automotive Industry Overview”>Automotive Industry Overview. If you need to understand the fundamentals of transmission systems covered in this manual, check the Manual Transmission”>Manual Transmission article. The bottom line: when you’re up against a seized crossmember bolt or a distributor that won’t seat, having the actual factory procedure—the one Haynes published in 1985, with all 293 pages—is what lets you finish the job without burning your knuckles. Access the Factory Manual.