Engine and auxiliaries

From GTM Workshop

Build Manual Build Sequence Monocoque Front End Rear End Doors Finishing Donor Components Rover Metro Donor Components Rover 220/420 Components Build Sections Battery Beam end covers Bonnet and front spliter mould Boot bootlock and hinges Brake lines Carpets Dashboard cover Doors Engine cover moulding Engine frame Engine and auxiliaries Exhaust Front suspension Gear change Handbrake lever cables and calipers Door panels Trim Headlight covers Heater and pipework Lights Part trim panels option Pedal box and master cylinder Perspex screens rear and side Petrol tank filler neck and cap Pipes and services through the tunnel Radiator ducting and splash moulds to monocoque Radiator mould radiator and pipework Rear suspension Roof panel Seat belts Seats and runners Separate instrument option Setting up the car for the road Soft trimming Spare wheel mould and spare wheel Steering rack and column Throttle pedal Trimming hard panels Windscreen and rear bulkhead screen Windscreen washer bottle pipes and jets Wiper motor and blades Wiring Wiring loom insruments and fuse box 1800 gear change p.g.1 gearbox 1800 engine mountings 5AS alarm units Hydraulic clutch 1800 engine steady Spyder Supplement Top Seatbelt Mounting Hood Boot Engine Compartment Grills Stainless Steel Mesh

The Libra utilises all the standard auxiliaries from the K Series Rover Metro. The ECU relay box coil and filter unit from the Metro all bolt directly to the bulkhead. The water bottle header tank bolts via a glassfibre shell to the driver’s side rear engine frame tube directly behind the engine.

Assembly

The engine on the GTM Libra is fitted from under the car. This is best achieved by jacking the car up to a height where the engine can be manoeuvred under the engine frame from the rear and then lift the engine with an engine crane. If you have not got an engine crane then it is perfectly possible and easy to jack the car up position the engine under the car at a suitable height and then lower the car onto the engine. The engine mounts on the standard Austin Rover K Series Metro engine mounts if you are using the engine out of any other Austin Rover car and not a Metro it is essential that the engine and gearbox mounts are changed to those of the Austin Rover K Series Metro.

If you are using a 18O0cc K Series engine with the AP1 gearbox it is necessary to purchase from GTM a special adapter bracket for your gearbox mounting. The engine mounting in this case must also be replaced by the K Series Rover Metro engine mounting Before assembling the engine to the car remove the main engine mounting from the engine by undoing the two nuts and sliding the casting upwards and mount this casting into the location on the Libra engine frame remembering to incorporate the two standard sideways rubbers between the casting and the frame leave this bolt slightly loose to enable adjustment to be made as the engine is brought up from below the car.

On the gearbox end of the assembly mount the standard Austin Rover K Series Metro gearbox mounting to the gearbox and disregard the metalwork that surrounds the mounting and is attached by the two small nuts on the top of the mounting. This is replaced on the Libra by a built in mount on the engine frame. Now jack up the engine or lower the body up into the engine frame from below the car and as it comes up locate the engine mounting and the gearbox mounting into the appropriate areas.

Tighten up the two vertical bolts on the engine mount attached to the engine and fit T0415 gearbox mounting bottom support under the standard Austin Rover gearbox mounting using two 10 millimetre diameter 25 millimetres long socket cap screws, washers and nylon nuts.

Auxiliaries

All the engine auxiliaries on the K Series Libra can conveniently be mounted directly onto the main bulkhead immediately prior to the engine. The arrangement shown on the diagram at the end of this manual is as we fitted out our original demonstrator and has proved to be totally satisfactory.

The main engine relay can be conveniently mounted onto the bulkhead using the original K Series mounting cut down so it can be bolted directly onto the bulkhead. Drill two 6 millimetre clearance holes in the outside face of the cut down component and use these holes to drill the bulkhead positioning the relay unit as close as possible to the indentation in the main mould for the main engine frame. Position the top of the mounting bracket as close as possible to the top of the flat surface of the bulkhead.

Mount the coil closely against the relay unit using the standard K Series mounting and bolting through the bulkhead with two 6 millimetre diameter 25 millimetre long set bolts, washers and nylon nuts.

Mount the standard K Series Rover fuel filter as shown in the diagram directly into the bulkhead adjacent to the coil using two 6 millimetre diameter 25 millimetre long set bolts, nylon nuts and washers. Note that the U section outlet from the fuel filter is at the top of the filter body and that the inlet from the petrol tank is at the bottom.

Mount the engine management ECU to the left of the main relays as indicated on the diagram using three 6 millimetre diameter 25 millimetre long socket cap screws, Washers and nyloc nuts.

Finally mount the inertia switch to the left hand side of the ECU using two number six 20 millimetres long self tapping screws.