Bonnet and front spliter mould
From GTM Workshop
The bonnet of the Libra pivots forward to allow access to the radiator fan, battery, spare - wheel etc. and is located when shut by five fasteners. These fasteners hold the bonnet rigidly to the tub and prevent any movement. A front splitter mould is fitted to the front edge of the bonnet in front of the radiator.
Bonnet and front splitter mould assembly.
This assembly should be undertaken with the radiator ducting T107 attached to monocoque T100.
Drill two pilot holes from the inside of radiator ducting T107 in the positions shown in the bottom front corners of the ducting for the bonnet hinge assembly. From the outside of the radiator ducting now open these holes up with a hole saw to approximately 20 millimetres. Using pivot holder T609 as a template working from the outside of the moulding drill two 6 millimetres holes through the pivot holder into the moulding with the boss of the pivot holder through the previously drilled 20 millimetre clearance hole the pivot holder should be positioned with the base of the triangle parallel to the base of the radiator ducting and the hypotenuse facing the driver or passenger. Now open these four holes up to 15 millimetres approximately with a hole saw.
Working from the outside of the radiator ducting push through retaining plate T608 and attach pivot holder T609 to the retaining plate using two 6 millimetre nylon nuts and washers. This assembly should now give a certain amount of adjustment up and down, forwards and backwards and can be nipped up prior to fitting the bonnet. Attach the three spire clip plates T602 to the monocoque using 15 millimetres long number 8 self-tapping screw. At this stage do not insert any packing washers between the biro clip plate and monocoque. Attach the two sill mounting brackets T613 to the top of the sills using four 15 millimetre long number 8 self-tapping screws. The position for all these mountings is indicated on the monocoque by small indentations. Fit five fairing 'U' nuts T615 to the brackets previously mounted to the monocoque.
In the bonnet mark and pilot drill two holes for the fitting of the pivot bushes T611. Drill out to 13 millimetres and fit the two bushes.
The bonnet can now be placed over the radiator ducting and two pivot pins T610 inserted from within the ducting and two 'R' clips inserted through the hole of the pivot holder T609 and pin T610.
The position of the bonnet pins can now be adjusted by loosening the four 6 millimetre nylon nuts on the inside of the radiator ducting. Adjust the bottom edge of the bonnet so that it is level with the bottom edge of the ducting. The forwards and backward position of the bonnet can be determined by where the bonnet fits on top of the sill. Once you are certain you have these in the correct relative positions tighten the four 6 millimetre lock nuts from within the radiator ducting. Pilot drill the five holes necessary for the fairing fasteners T600 and open out to 6-millimetre clearance. The fairing fasteners can now be used and the position of the fairing mounting brackets finally adjusted.
Bonnet splitter
The fairing fasteners can now be used and the position of the fairing mounting brackets finally adjusted. The front splitter mould is held in place by 2 bighead fasteners T0648 and 2 No 8 self tapping screws. Within the centre of the rebate for the splitter mould mark two hose positions 200mm from the centre of the car. Drill out these holes 6mm Place the splitter mould in its position and mark through the 6mm holes already drilled onto the back face of the splitter mould.
Bond 2 bighead fasteners T0648 to the inner face of the splitter mould in the positions you have just marked using body filler. Slot the 6mm holes drilled in the bonnet to enable the top hat studs to go through easily and bolt up on the rear face. - Out of sight of the front of the car drill through and mount the bottom corners number 8 self tapping screws.
