TOYOTA CELICA TURBO Gr.5

Model
Tamiya Toyota Celica Turbo Gr.5 article number 58009, on sale in the last months of 1978 just after the Countach CS and available on the market until 1984.
Polystyrene body.
Chassis Countach Competition Special

Analysis of the model to be restored
The chassis is complete and the parts are all intact, in the picture the chassis is disassembled awaiting restoration.

The body requires more attention. Starting from the front going to the rear, the body analysis reveals that
– the body colour is wrong; it is blue polystyrene, original from the 1980s. The following re-editions are in white polystyrene,
– the front grille and headlight assembly are completely missing,
– the driver’s rear view mirror is missing, it is identical to those for Tamiya models Porsche 934 item number 58001, Porsche 935 item number 58002, Countach item number 58008 + 58005 and Tyrrell P34 item number 58003.
– passenger mirror is missing (see note for driver mirror),
– the windows are present, they are not in very good condition because there are signs of abundant use of glue; they have no obvious chips,
– broken driver pillar towards the bonnet
– passenger pillar broken towards the bonnet and a piece of about one centimetre is missing
– missing right rear wing grille
– missing left rear wing grille
– missing right rear grey
– rear spoiler with the two supports is completely missing,
– all chrome parts are present; right door handle, left door handle, right rear pillar air intake and left rear pillar air intake.

Chassis Restoration
The main parts of the chassis are:

– plastic front bumper,
– metal central body,
– metal battery, servo and receiver holder plate and
– metal motor carrier plate.

Picture sequence showing the chassis before and after washing with hot water – degreasing kitchen soap and polishing with polish or toothpaste.
Treatment for small parts and all other metal parts:
– leave the small parts immersed in diesel for seven days to remove traces of rust and oxide,
– run a cycle in the ultrasonic washing machine; 25 minutes at 70°C and
– rinse in hot water.
Treat all other plastic and Teflon parts:
– wash with hot water and degreasing kitchen soap,
– run a cycle in the ultrasonic washing machine; 25 minutes at 40°C and
– rinse in hot water.

Sequence of images showing how to assemble the chassis:
– Assemble the rear sub-assembly; axle, transmission, motor support frame and rear wheels.
Choose between installing differential or fixed gear, Tamiya suggests as first choice the simple gear without satellites for the Lamborghini Countach CS model 58008 and the Toyota Celica Turbo Gr.5. The instructions only mention the differential in the final pages of the manual,
– install the motor,
– assemble the arms – front spindles, front wheels and the steering system with a single central tie rod,
– complete the steering system by installing the servo plate and the servo itself,
– install the black bumper and
– assemble the mechanical speed controller plate, receiver, battery and servo-receiver battery.

Sequence of pictures showing how to repair the mechanical speed control whose electrical cables have been cut and the connector for the battery is missing; there is a fuse and a servo linkage:
– join the battery cables (red and black cable) by soldering them together,
– join the motor cables (yellow and green cable) by soldering them together,
– join the mechanical speed control to the servo with double-sided tape,
– install together on the chassis by adding the receiver. Receiver and servo with MSC are attached to the chassis by double-sided tape. Use white plastic cable ties to secure excessively long cables.

Body restoration
Preparatory operations for restoration
– clean the body with water and degreasing kitchen soap,
– remove glass panes,
– remove chrome parts and
– peel off stickers.

To strip the body, fill a container with 90% pure isopropyl alcohol or more. Select the version that does not contain additives such as dyes and perfumes. The steps to be performed are as follows
– leave the body immersed for 12 hours,
– remove the body from the container,
– remove the paint with the help of a soft wooden spatula and by gentle mechanical action. It is useless to insist if the paint does not come off and
– repeat this sequence of operations until the paint has been removed from the entire surface.
Use wooden toothpicks to remove paint in corners and in parts that cannot be reached with a spatula. When alcohol dries the varnish starts to dry in turn and when it is completely dry it is impossible to remove it, keep the surface wet with alcohol for as long as you apply the mechanical action.

The body is broken into two parts: the front driver’s pillar and the right rear wheel arch air intake.
To repair these parts, use the least dense mixture of acetone and ABS available:
– apply the mixture to the two sides to be joined with a brush,
– hold the two parts in place and secure them with a wooden or metal clip,
– wait for acetone to take effect; at least 6 hours,
– place a strip of ABS as reinforcement using the less dense solution of ABS solution and acetone as adhesive and
– wait for the solution to solidify; at least 6 hours.

Driver front pillar.

Right rear wheel inlet.

The right pillar is broken, detached from the body completely and missing one part. Picture sequence showing how to repair the passenger pillar:
– cut a bar as wide as the pillar from a sheet of ABS,
– apply an undulating motion from right to left and vice versa with a cutter or scalpel to obtain the step shape of the section,
– place the piece next to the strut to check the correct shape and dimensions,
– use the thicker solution of ABS and acetone to join the two parts,
– wait for the solution to solidify; at least 6 hours,
– try to install the part in the body,
– cut the correct shape and length to best fit the strut into the body,

– cut two thin strips of ABS which are the two reinforcements,
– use the more liquid solution of ABS and Acetone to join the upright to the two reinforcements, use two wooden clothes pegs to hold the 3 parts in place,
– wait for the solution to solidify; at least 6 hours,

– Using a brush, place a thick solution of ABS and acetone on the two points where the upright joins the body,
– place the repaired upright immediately afterwards,
– clamp the two reinforcements using wooden clips so that they grip the solution,
– wait for the solution to solidify; at least 6 hours.

Work the surfaces of the repaired parts with 800, 1,200 and 1,500 grit sandpaper. The three body cracks are now ready for painting.

Rear wing completely missing together with the two vertical wings that serve as supports. Picture sequence showing how to build wing and side supports, wing and supports taken from another new set are used as samples:

– apply painter’s tape to a 1 mm thick sheet of ABS,
– overlap the parts to be replicated onto the ABS sheet,
– mark the outlines of the support with a felt-tip pen,
– the supports have a special shape which allows them to be inserted into the body, repeat the same operation to prepare a total of two parts for the right side and two for the left side,
– to obtain the support weld these two parts together by brushing pure acetone between the two parts. The two parts are slightly different and the two supports are mirrored,
– hold the parts together with two wooden clothes pegs,

– Test the two wings and check for correct installation in the body. Trim if necessary using a scalpel or cutter,

– using the newly available set; cut out the wing cardboard template,
– cut the wing outline from a 1 mm thick aluminium sheet, leaving the two ears that are used to attach it to the two side wings,
– drill the two ears with a 1 mm drill bit,
– bend the wings at 90° using a wooden board as support,
– wing has a curved shape at the rear; place the wing between a work surface and a wooden board as wide as the wing so that the ears fit into the wooden board. Leave a 1.5 cm strip outside the wooden board,

– bend what protrudes from the wooden board by about 30° and
– try wing installation

The front grille, which also includes the light assembly, is completely missing; sequence of pictures showing how to build the front grille, a new front grille taken from another new set is available and used as a sample:

– construct the various parts from the new part,
– always use pure acetone to join the parts; apply with brush and leave for at least one hour,
– glue the base with the bottom V reinforcement; wait for the solution to solidify; at least 1 hour
– glue right flap; wait for solution to solidify; at least 1 hour
– glue left flap; wait for solution to solidify; at least 1 hour,
– glue right front; wait for solution to solidify; at least 1 hour,
– glue left front; wait for the solution to solidify; at least 1 hour,
– join the two parts using a strip of ABS foil one millimetre thick and thick acetone solution; wait for the solution to solidify; at least 1 hour
– machine the joint with 1,000 grit sandpaper,
– apply the right and left side rectangle; wait for the solution to solidify; at least 1 hour,

– test installation; the grille must fit perfectly into the body,
– glue the two front flaps; wait for the solution to solidify; at least 1 hour,
– build the lenses of the lights; use the rigid packaging of a CD, cut out a square, with 600 grit sandpaper round off the edges until you get a perfect circle with the right dimensions and
– test fit the lenses and light bell. In this case the 4 mirror bells are from a 58002 Porsche 935 set whose static equivalent is still in production (2023).

The main body repairs have been completed.

The driver, the two rear wing grilles and the one on the right side of the wing are completely missing. To reconstruct the grids use Oyumaru paste; picture sequence showing how the wing side grid is used as a sample. Use the same technique for all grids:

– prepare tweezers + paste + glass container,
– heat water in a saucepan,
– as soon as the water boils; pour the water into the glass jar,
– immerse the dough, after a few tens of seconds the dough is soft enough to be pressed over the shape to be replicated,
– remove the dough from the water using tweezers,
– manipulate the paste, if the paste contains solid lumps heat the water again and repeat the operation,
– press the piece to be replicated into the paste, for small pieces it is better to press the piece into the paste,

– wait several hours for the paste to cool back to a solid state,
– remove the piece that served as a sample,
– fill the mould with acetone and ABS solution,
– to speed up the creation of the radiator; cut out a rectangle from a sheet of ABS to insert into the mould together with the acetone and ABS solution,
– wait 3-4 days for the solution to solidify, once solidified the solution has receded so supplement by adding new solution,
– wait 4-5 days for the solution to solidify, remove the part and
– finish the lines with a screwdriver tip or toothpick

Clean glasses with polish or toothpaste.

Sequence of images showing how to obtain the driver for the Toyota Celica Turbo Gr.5 starting from the driver for the Golf Mk1 racing Gr.2 (2023, this is still on the market):
– the driver of the Golf lacks a side flap to fix it to the chassis and has two cylinders at the base of the body that must be cut; cut a sheet of ABS 2 millimetres thick to obtain a strip as wide as the support of the driver of the Celica
– cut two rectangles having the same measurements as the Celica’s support,
– join the parts with the thick solution of Acetone and ABS; wait for the solution to solidify; at least 6 hours,
– machine the parts with 800 and 1,000 grit sandpaper,
– cut into the support the cut perpendicular to the short side that helps install the driver in the body,
– cut the two cylinders and machine the surface with 800 and 1,000 abrasive paper,
– join driver and support using acetone and ABS solution; wait for the solution to solidify; at least 6 hours and
– machine the parts with 800 and 1,000 grit paper.

Apply primer to the various parts and colour

– blue colour (TS15) on the body and visible parts,
– black (rubber black XF85) to simulate the seals around the front glass and
– matt black (flat black XF1) for the front radiator grille and bonnet grille.

Apply the cockpit windows, front and rear headlamp unit windows, side and rear grilles, rear wing flaps and rear wing.

Apply stickers.

Restored model
Images showing the finished model.

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