Service Bulletins
Discussion
Thought you may find some of the information in these interesting so posting them up for the community.
Bulletin No. 104
19/8/98
4.5 and 4.2 Cerberas
Front Crank Seal
Dear Dealer,
When replacing the front crank seal part number E2793 on both 4.2 and 4.5
engines beware that in some cases the needle roller bearing that carries the A/C
pinion sleeve can clapse, so before replacing the pinion sleeve please check the
bearing. Any problems please contact Paul Giddings in our engine department.
Bulletin No: 105
25th September
Cerbera 4.2 and 4.5
Oil Pressure Capillary Hose
It has been found that a few Cerberas have left the factory without the oil pressure gauge pipe being
sufficiently tightened. It is important that all the cars on the list on page 2 are found and the tightness of
the pipe checked and rectified quickly to minimise any risks of an oil leak into the passenger
compartment.
The nylon pipe runs from the back of the oil pressure / water temperature gauge to the bulkhead, and it
is only the end that screws on to the bulkhead connector on the underside of the bulkhead, that may
be loose. This end is found in the passenger compartment above the pedal box (see photo). Access
can be gained without removal of any parts, simply trace vertically up from the clutch pedal and the
connector should be easily found. A 1/4 Whitworth spanner will be needed to tighten the nut on the
pipe. If the nut is first loosened and retightened to finger tight only, a further 1/3 to 1/2 turn with the
spanner should provide a sufficient torque.
The warranty code for the work is:
I93/CB Tighten Dual Gauge Pipe. Time - 0.25 Hours
Bulletin No: 106
29/9/98
Cerbera
Heater
DUE TO A PROBLEM WITH HOT AIR INGRESS THROUGH THE DASH VENTS WHEN THE HEATER IS
SWITCHED OFF A MODIFICATION HAS BEEN DEVELOPED. THE MOD CONSISTS OF A SHAPED PIECE OF
FOAM PART No V1056 INSERTED IN THE N\S INNER WING AND SEALED WITH UNDER SEAL, AND A
NEW HEATER CLOSING PANEL PART No BO606
MODIFICATION
1. JACK FRONT OF CAR AND REMOVE L\HAND FRONT WHEEL.
2. REMOVE INSPECTION PANEL AT THE REAR OF HEAD LAMP.
3. COAT EDGES OF FOAM (PART No V1056) WITH CONTACT ADHESIVE AND FIT INSIDE WING
THROUGH INSPECTION PANEL APERTURE FIG 1.
4. WHEN SATISFIED THAT THE FOAM IS A GOOD FIT SEAL WITH UNDERSEAL, SEAL AND REFIT PANEL
AND FIT WHEEL.
5. REMOVE CARPET AND HEATER CLOSING PANEL FROM PASSENGER FOOTWELL CAR FIG 2. REFIT
WITH NEW PANEL AND CARPET.
6. WITH A 96 mm HOLE SAW CUT HOLE IN L\H KICK PANEL AND FIT VENT (PART No P0083) FIG 3.
AND REFIT.
PLEASE NOTE: WHEN ORDERING MOD, QUOTE CARPET AND COLOUR. THE WARRANTY CODE FOR THIS
MOD. IS AS FOLLOWS:-
H256CB RE-CIRCULATION MOD. 11/3 HRS
3/12/98
Cerbera
Bulletin 103 - fuseboard 108
As indicated in Technical Bulletin No. 103, due to low production levels of the TVR
fuseboard cars with chassis numbers ending 1863 upto 2281. Which were built from July of
this year were fitted with Audi fuseboards.
It has been brought to our attention that the fuse diagram printed in the Cerbera Owners
handbook for 4.2 and 4.5 wasn’t altered when the fuse board change took place.
If any of these Cerbera chassis numbers relates to your customers please ensure that the
enclosed pages from the handbook are forwarded onto them.
29/4/99
Cerbera
Dampers
118
Dear Dealer,
From 1 May 1999 the earlier Cerbera V8 dampers, red in colour and part numbers C0173 front and
D0113 rear will no longer be available. Instead use the current Cerbera V8 dampers, in pairs, black
in colour and part numbers C0203 front and D0122 rear. It is perfectly acceptable to fit a new pair
at one axle end of the car whilst retaining the earlier pair at the other axle. Do not mix on the same
axle.
Always fit dampers in pairs, unless the existing units have done less than 500 miles whereby it is then
acceptable to just swap one unit. When ordering new dampers, of any sort for any reason, please
always order new damper bushes (C0092) to suit. It is not good practice to press old ones out to
use in new units.
Please note that the Cerbera 6 dampers are also black and the fronts are identical externally to
the V8 units, do not mix them up as the internal valving is very different. The rears have the circlip
groove lower to accommodate the adjustable lower spring seat, as well as different internal
valving. All dampers have the part number stamped at the base of the tube. The Cerbera 6 front
damper is C0407 and the rear D0337.
In general please ensure that the correct procedure is used when tightening any pivot bolt that
locates a bonded rubber suspension bush, be it damper or wishbone bolts. Always perform the
final torqueing at ride height. If the car is in the air and the suspension at full droop, then tightening
the pivot bolts will cause premature wear of the bushes, raise the ride height of the car and reduce
the ride quality alarmingly. Ensure that the pivot bolt is only nipped up before the car is lowered
onto it's wheels; if the Nyloc friction can turn the bolt then that is a good indication that the bush
will align itself at ride height. The damper bolts (1/2" UNF) should be torqued to 45 lb.fts. and the
wishbone pivot bolts (7/16" UNF) to 40 lb.fts.
19/10/99
Cerbera
Window hitting ‘a’ post trim
130
F.A.O All Service Managers,
A new chip has been created which should prevent the window winding up before the door is fully
shut, stopping the window from hitting the ‘a’ post trim and causing damage. The new software
ensures that the door has been fully closed for at least 1.5 seconds. It is important that the initial
door pin switch setting is correct, i.e. that the window does not rise when he window is on the first
catch.
The new chip is part no:- MEO417, named ‘IN 50. ASM’. This should replace the existing chip
labelled IC3 in the door control unit (this is the one closest to the 17-way connector on the PCB).
The new chip is retro fittable to all Cerbera models. It will only change the door closure/window
wind up function.
MEO417 is a per-programmed ME0067 and can only be used in the Cerbera door ECU ME0154.
3/7/00
Cerbera 4.2 & 4.5
Cerbera V8 Oil Hoses
157
Dear Service Manager,
As from chassis number 1272 onwards all 4.2 and 4.5 Cerberas have their oil pipe size increased from
1/2 inch to 5/8 inch bore hose. The orginal hose part numbers remain the same, although the new
main pressure hose from the engine cooler (E2932) is now re-routed around the back of the sump
and suspended using 2 x E3699 support brackets and 2 x H0203 25mm diameter P clips.
Dealers who have had oil pressure problems especially on cars that are used on track days should
upgrade to the new specification pipes.
A retro kit of the following parts is available from our parts department.
Kit Parts List
E2932 Engine oil cooler hose 1
E2807 Oil cooler filter hose 1
E2809 Filter to engine hose 1
E3699 Oil pipe support bracket 2
H0203 25mm P Clip 2
W0013 M8 x 20 set screw 2
W0044 M8 nyloc nut 2
W0014 M8 Form A washer 4
Fitting Instructions
1 Pipes E2807 and E2809 are directly interchargeable.
2 E2932 is routed differently and requires the use of H0203 P Clips bolted to E3699 support
bracket.
3 On the O/S of the engine the support bracket is mounted using the PAS Pump mounting bolt
which passes through the welded PAS Pump support bracket. ( see pic 1)
4 Similary the N/S is mounted using an existing bell housing bolt (see pic 2)
5 The pipe then runs alon
g the side of the engine block to the front of the chassis and is
secured with cable ties as shown in pic 3.
5/7/00
Cerbera 4.2 & 4.5
Tuscan Type 18 inch wheels
158
Dear Service Manager,
Tuscan Speed Six 18 & 16 inch wheels are NOT available as an option on Cerberas. If a dealer
purchases Tuscan Spec. wheels via our parts Department, please be aware that they will only fit
Cerberas from chassis number 1325 onwards.
Due to the spec of Tuscan wheels, if fitted to early Cerberas wishbone fouling will occur.
ALL Cerbera steering racks have now been modified by extending the “Lock Stops” by 4mm as per
Tuscan. Correct specification wheel nuts must also be fitted if changed from orginal wheels.
Tuscan Specification Part Numbers
G0131 Tuscan type 18 inch wheel (front) - silver 2
G0132 Tuscan type 18 inch wheel (rear) - silver 2
G0133 Tuscan type 18 inch wheel (front) - anthracite 2
G0134 Tuscan type 18 inch wheel (rear) - anthracite 2
G0135 Tuscan wheel centre 4
G0136 Tuscan wheel nuts 20
G0137 Tuscan tyre valve 4
Cerbera Standard Specification Part Numbers
G0125 Cerbera type 18 inch wheel (front) - silver 2
G0126 Cerbera type 18 inch wheel (rear) - silver 2
G0118 Cerbera wheel centre 4
G0105 Cerbera wheel nuts 20
G0106 Cerbera tyre valve 4
June 4th 2001
Tuscan Speed Six & Cerbera
Chassis Developments May 2001
183
Dear Service Manager,
This is a brief explanation of the chassis developments that have occurred during the month of
May affecting Tuscans and Cerberas. For each model there is a description of the changes and a
list of new parts.
Tuscan models have been the most affected, with modifications to the front suspension and
steering geometry, as well as braking components on the Tuscan Red Rose and ‘S’ chassis.
Cerbera modifications are limited to brake components and front uprights only.
Tuscan
Geomtry changes
Front suspension and steering geometry changes have been introduced on the Tuscan chassis,
from chassis number 1296. The changes include a modification to the pivot point of the upper front
wishbone, a change in the position of the upper ball joint on the front upright and modifications to
the length of the steering rack bar, along with the height of the steering rack mounts. This has
meant changing the wishbone mounting plate work on the chassis frame and the length of the
upper front wishbone. Visually the geometry changes do not radically change the appearance of
the new components, so to aid identification, holes have been added to the middle of all the
wishbone mounting plates on the front of the chassis and to the plate work for the longer upper
front wishbones. The purpose of these modifications is to make the cars less nervous and to give
the steering greater feel.
Description New Part No Quantity Per Car
RH Front Upright C0928 or C0930 1 off
LH Front Upright C0929 or C0931 1 off
Chassis Frame Assembly A0765 1 off
RH Upper Front Wishbone Assembly C0932 1 off
LH Upper Front Wishbone Assembly C0933 1 off
Steering Rack Assembly RHD H0747 1 off
Steering Rack Mounting Spacer H0749 2 off
Steering Rack Mounting Shim H0748 2 off
NB: THERE ARE TWO SETS OF PART NUMBERS GIVEN HERE FOR THE NEW FRONT UPRIGHTS, C0928/929
ARE MODIFIED VERSIONS OF THE EXTRUDED ITEMS C0423/424 AND HAVE AN ADDITIONAL SET OF
MOUNTING HOLES TO ALLOW THE UPPER BALL JOINT TO BE RE-POSITIONED. C0930/931 ARE REDESIGNED
VERSIONS OF THE EXTRUDED FRONT UPRIGHT, WITH ONLY ONE SET OF MOUNTING HOLES
FOR THE UPPER BALL JOINT IN THE NEW POSITION.
June 19th 2001
All Cerbera
Chassis Developments June 2001
184
Dear Service Manager,
The front suspension and steering geometry changes that were introduced last month onto the
Tuscan chassis, will now also be introduced onto all Cerbera models. On V8 Cerberas from chassis
1417 and on the Speed Six from chassis 1432.
Once again, the new specification chassis frames and wishbones will be able to be distinguished
by identification holes added to the plate work at the front of the chassis and to the wishbones
themselves. In fact the same components as used on the Tuscan, are being used on the Cerbera.
The following tables list the new parts being used for both V8’s and Speed Six cars, the only
differences between the two chassis types being the chassis frame itself and the steering rack.
Cerbera 4.2 & 4.5
Description New Part No Quantity Per Car
RH Front Upright C0928 or C0930 1 off
LH Front Upright C0929 or C0931 1 off
Chassis Frame Assembly A0766 1 off
RH Upper Front Wishbone Assembly C0932 1 off
LH Upper Front Wishbone Assembly C0933 1 off
Steering Rack Assembly RHD H0746 1 off
Steering Rack Mounting Spacer H0750 2 off
Steering Rack Mounting Shim H0748 2 off
NB: THERE ARE TWO SETS OF PART NUMBERS GIVEN HERE FOR THE NEW FRONT UPRIGHTS, C0928/929
ARE MODIFIED VERSIONS OF THE EXTRUDED ITEMS C0423/424 AND HAVE AN ADDITIONAL SET OF
MOUNTING HOLES TO ALLOW THE UPPER BALL JOINT TO BE RE-POSITIONED. C0930/931 ARE REDESIGNED
VERSIONS OF THE EXTRUDED FRONT UPRIGHT, WITH ONLY ONE SET OF MOUNTING HOLES
FOR THE UPPER BALL JOINT IN THE NEW POSITION AND AS A RESULT ARE NOT COMPATIBLE WITH MK1
GEOMETRY CHASSIS. THE UPRIGHTS SHOULD BE USED IN MATCHED PAIRS, C0928 WITH C0929 AND
C0930 WITH C0931.
July 2001
Cerbera
Rear Tyre Fouling
186
To All Service Managers,
It has come to our attention that in some circumstances, Cerbera’s that were on the old style
18”wheels and then fitted with the new “Spider” type 18” wheels, are suffering from the rear tyres
rubbing on the inner rear wheel arches.
To overcome this problem it is necessary to carry out the following modifications;
Jack up the rear of the vehicle or put it on a ramp and remove the rear wheels.
Using a sanding disc, sand down the inside of the wheel arch from 45 degrees either side of the
vertical, so that the thickness of the wheel arch flange is gradually reduced to 10mm thickness at
the top of the wheel arch (Diagrams attached for reference).
If there are any cavities when you have finished sanding, these can be filled from the outside using
a sandable glass fibre repair paste (eg u-pol fibral) and then a filler to finish.
When it is finished and smooth, spray with a matt black paint and refit the wheels.
September 29th 2001
Cerbera
Change of Fusebox
191
Due to the obsolescence of the current fusebox used on Griffith/ Chimaera/ Cerbera (M0264) it
has become necessary to implement an alternative. Initially, in order to retain some stock levels for
Griffith/ Chimaera and a quantity for spares, all Cerbera’s from chassis no.1426 will have TVR part
No. M1276 fitted.
The fuse and relay list for this is as follows:-
Fuse No. Description Rating
1 Dip beam and Dim dip 20A
2 Sidelights and Rear Fog light 15A
3 Engine fan 1 30A
4
5
6 Horn 10A
7 Master Ignition 20A
8 Main Beam 20A
9
10 Starter solenoid 30A
11
12
13 Heated rear screen 25A
14
15 Engine fan 2 30A
16 Hazard lights 10A
17
18 Door lock ECU & Drivers window 20A
19
20 Boot light, Courtesy light & cigarette lighter 15A
21 Passenger Lock & Boot lock 10A
22
23 Drivers lock & Passenger window 20A
24 Gauges, mirrors, radio & dim dip 10A
25 Indicators, reverse & brake lights 15A
26
27
28 Heating & ventilation system 25A
29
30 Ignition coils 20A
31 Wipers & steering wheel ECU 20A
32 Immobiliser 10A
33 Injectors & engine ECU 15A
34 Fuel pump & Purge can 20A
35 Lambda heaters 7.5A
Bulletin No. 104
19/8/98
4.5 and 4.2 Cerberas
Front Crank Seal
Dear Dealer,
When replacing the front crank seal part number E2793 on both 4.2 and 4.5
engines beware that in some cases the needle roller bearing that carries the A/C
pinion sleeve can clapse, so before replacing the pinion sleeve please check the
bearing. Any problems please contact Paul Giddings in our engine department.
Bulletin No: 105
25th September
Cerbera 4.2 and 4.5
Oil Pressure Capillary Hose
It has been found that a few Cerberas have left the factory without the oil pressure gauge pipe being
sufficiently tightened. It is important that all the cars on the list on page 2 are found and the tightness of
the pipe checked and rectified quickly to minimise any risks of an oil leak into the passenger
compartment.
The nylon pipe runs from the back of the oil pressure / water temperature gauge to the bulkhead, and it
is only the end that screws on to the bulkhead connector on the underside of the bulkhead, that may
be loose. This end is found in the passenger compartment above the pedal box (see photo). Access
can be gained without removal of any parts, simply trace vertically up from the clutch pedal and the
connector should be easily found. A 1/4 Whitworth spanner will be needed to tighten the nut on the
pipe. If the nut is first loosened and retightened to finger tight only, a further 1/3 to 1/2 turn with the
spanner should provide a sufficient torque.
The warranty code for the work is:
I93/CB Tighten Dual Gauge Pipe. Time - 0.25 Hours
Bulletin No: 106
29/9/98
Cerbera
Heater
DUE TO A PROBLEM WITH HOT AIR INGRESS THROUGH THE DASH VENTS WHEN THE HEATER IS
SWITCHED OFF A MODIFICATION HAS BEEN DEVELOPED. THE MOD CONSISTS OF A SHAPED PIECE OF
FOAM PART No V1056 INSERTED IN THE N\S INNER WING AND SEALED WITH UNDER SEAL, AND A
NEW HEATER CLOSING PANEL PART No BO606
MODIFICATION
1. JACK FRONT OF CAR AND REMOVE L\HAND FRONT WHEEL.
2. REMOVE INSPECTION PANEL AT THE REAR OF HEAD LAMP.
3. COAT EDGES OF FOAM (PART No V1056) WITH CONTACT ADHESIVE AND FIT INSIDE WING
THROUGH INSPECTION PANEL APERTURE FIG 1.
4. WHEN SATISFIED THAT THE FOAM IS A GOOD FIT SEAL WITH UNDERSEAL, SEAL AND REFIT PANEL
AND FIT WHEEL.
5. REMOVE CARPET AND HEATER CLOSING PANEL FROM PASSENGER FOOTWELL CAR FIG 2. REFIT
WITH NEW PANEL AND CARPET.
6. WITH A 96 mm HOLE SAW CUT HOLE IN L\H KICK PANEL AND FIT VENT (PART No P0083) FIG 3.
AND REFIT.
PLEASE NOTE: WHEN ORDERING MOD, QUOTE CARPET AND COLOUR. THE WARRANTY CODE FOR THIS
MOD. IS AS FOLLOWS:-
H256CB RE-CIRCULATION MOD. 11/3 HRS
3/12/98
Cerbera
Bulletin 103 - fuseboard 108
As indicated in Technical Bulletin No. 103, due to low production levels of the TVR
fuseboard cars with chassis numbers ending 1863 upto 2281. Which were built from July of
this year were fitted with Audi fuseboards.
It has been brought to our attention that the fuse diagram printed in the Cerbera Owners
handbook for 4.2 and 4.5 wasn’t altered when the fuse board change took place.
If any of these Cerbera chassis numbers relates to your customers please ensure that the
enclosed pages from the handbook are forwarded onto them.
29/4/99
Cerbera
Dampers
118
Dear Dealer,
From 1 May 1999 the earlier Cerbera V8 dampers, red in colour and part numbers C0173 front and
D0113 rear will no longer be available. Instead use the current Cerbera V8 dampers, in pairs, black
in colour and part numbers C0203 front and D0122 rear. It is perfectly acceptable to fit a new pair
at one axle end of the car whilst retaining the earlier pair at the other axle. Do not mix on the same
axle.
Always fit dampers in pairs, unless the existing units have done less than 500 miles whereby it is then
acceptable to just swap one unit. When ordering new dampers, of any sort for any reason, please
always order new damper bushes (C0092) to suit. It is not good practice to press old ones out to
use in new units.
Please note that the Cerbera 6 dampers are also black and the fronts are identical externally to
the V8 units, do not mix them up as the internal valving is very different. The rears have the circlip
groove lower to accommodate the adjustable lower spring seat, as well as different internal
valving. All dampers have the part number stamped at the base of the tube. The Cerbera 6 front
damper is C0407 and the rear D0337.
In general please ensure that the correct procedure is used when tightening any pivot bolt that
locates a bonded rubber suspension bush, be it damper or wishbone bolts. Always perform the
final torqueing at ride height. If the car is in the air and the suspension at full droop, then tightening
the pivot bolts will cause premature wear of the bushes, raise the ride height of the car and reduce
the ride quality alarmingly. Ensure that the pivot bolt is only nipped up before the car is lowered
onto it's wheels; if the Nyloc friction can turn the bolt then that is a good indication that the bush
will align itself at ride height. The damper bolts (1/2" UNF) should be torqued to 45 lb.fts. and the
wishbone pivot bolts (7/16" UNF) to 40 lb.fts.
19/10/99
Cerbera
Window hitting ‘a’ post trim
130
F.A.O All Service Managers,
A new chip has been created which should prevent the window winding up before the door is fully
shut, stopping the window from hitting the ‘a’ post trim and causing damage. The new software
ensures that the door has been fully closed for at least 1.5 seconds. It is important that the initial
door pin switch setting is correct, i.e. that the window does not rise when he window is on the first
catch.
The new chip is part no:- MEO417, named ‘IN 50. ASM’. This should replace the existing chip
labelled IC3 in the door control unit (this is the one closest to the 17-way connector on the PCB).
The new chip is retro fittable to all Cerbera models. It will only change the door closure/window
wind up function.
MEO417 is a per-programmed ME0067 and can only be used in the Cerbera door ECU ME0154.
3/7/00
Cerbera 4.2 & 4.5
Cerbera V8 Oil Hoses
157
Dear Service Manager,
As from chassis number 1272 onwards all 4.2 and 4.5 Cerberas have their oil pipe size increased from
1/2 inch to 5/8 inch bore hose. The orginal hose part numbers remain the same, although the new
main pressure hose from the engine cooler (E2932) is now re-routed around the back of the sump
and suspended using 2 x E3699 support brackets and 2 x H0203 25mm diameter P clips.
Dealers who have had oil pressure problems especially on cars that are used on track days should
upgrade to the new specification pipes.
A retro kit of the following parts is available from our parts department.
Kit Parts List
E2932 Engine oil cooler hose 1
E2807 Oil cooler filter hose 1
E2809 Filter to engine hose 1
E3699 Oil pipe support bracket 2
H0203 25mm P Clip 2
W0013 M8 x 20 set screw 2
W0044 M8 nyloc nut 2
W0014 M8 Form A washer 4
Fitting Instructions
1 Pipes E2807 and E2809 are directly interchargeable.
2 E2932 is routed differently and requires the use of H0203 P Clips bolted to E3699 support
bracket.
3 On the O/S of the engine the support bracket is mounted using the PAS Pump mounting bolt
which passes through the welded PAS Pump support bracket. ( see pic 1)
4 Similary the N/S is mounted using an existing bell housing bolt (see pic 2)
5 The pipe then runs alon
g the side of the engine block to the front of the chassis and is
secured with cable ties as shown in pic 3.
5/7/00
Cerbera 4.2 & 4.5
Tuscan Type 18 inch wheels
158
Dear Service Manager,
Tuscan Speed Six 18 & 16 inch wheels are NOT available as an option on Cerberas. If a dealer
purchases Tuscan Spec. wheels via our parts Department, please be aware that they will only fit
Cerberas from chassis number 1325 onwards.
Due to the spec of Tuscan wheels, if fitted to early Cerberas wishbone fouling will occur.
ALL Cerbera steering racks have now been modified by extending the “Lock Stops” by 4mm as per
Tuscan. Correct specification wheel nuts must also be fitted if changed from orginal wheels.
Tuscan Specification Part Numbers
G0131 Tuscan type 18 inch wheel (front) - silver 2
G0132 Tuscan type 18 inch wheel (rear) - silver 2
G0133 Tuscan type 18 inch wheel (front) - anthracite 2
G0134 Tuscan type 18 inch wheel (rear) - anthracite 2
G0135 Tuscan wheel centre 4
G0136 Tuscan wheel nuts 20
G0137 Tuscan tyre valve 4
Cerbera Standard Specification Part Numbers
G0125 Cerbera type 18 inch wheel (front) - silver 2
G0126 Cerbera type 18 inch wheel (rear) - silver 2
G0118 Cerbera wheel centre 4
G0105 Cerbera wheel nuts 20
G0106 Cerbera tyre valve 4
June 4th 2001
Tuscan Speed Six & Cerbera
Chassis Developments May 2001
183
Dear Service Manager,
This is a brief explanation of the chassis developments that have occurred during the month of
May affecting Tuscans and Cerberas. For each model there is a description of the changes and a
list of new parts.
Tuscan models have been the most affected, with modifications to the front suspension and
steering geometry, as well as braking components on the Tuscan Red Rose and ‘S’ chassis.
Cerbera modifications are limited to brake components and front uprights only.
Tuscan
Geomtry changes
Front suspension and steering geometry changes have been introduced on the Tuscan chassis,
from chassis number 1296. The changes include a modification to the pivot point of the upper front
wishbone, a change in the position of the upper ball joint on the front upright and modifications to
the length of the steering rack bar, along with the height of the steering rack mounts. This has
meant changing the wishbone mounting plate work on the chassis frame and the length of the
upper front wishbone. Visually the geometry changes do not radically change the appearance of
the new components, so to aid identification, holes have been added to the middle of all the
wishbone mounting plates on the front of the chassis and to the plate work for the longer upper
front wishbones. The purpose of these modifications is to make the cars less nervous and to give
the steering greater feel.
Description New Part No Quantity Per Car
RH Front Upright C0928 or C0930 1 off
LH Front Upright C0929 or C0931 1 off
Chassis Frame Assembly A0765 1 off
RH Upper Front Wishbone Assembly C0932 1 off
LH Upper Front Wishbone Assembly C0933 1 off
Steering Rack Assembly RHD H0747 1 off
Steering Rack Mounting Spacer H0749 2 off
Steering Rack Mounting Shim H0748 2 off
NB: THERE ARE TWO SETS OF PART NUMBERS GIVEN HERE FOR THE NEW FRONT UPRIGHTS, C0928/929
ARE MODIFIED VERSIONS OF THE EXTRUDED ITEMS C0423/424 AND HAVE AN ADDITIONAL SET OF
MOUNTING HOLES TO ALLOW THE UPPER BALL JOINT TO BE RE-POSITIONED. C0930/931 ARE REDESIGNED
VERSIONS OF THE EXTRUDED FRONT UPRIGHT, WITH ONLY ONE SET OF MOUNTING HOLES
FOR THE UPPER BALL JOINT IN THE NEW POSITION.
June 19th 2001
All Cerbera
Chassis Developments June 2001
184
Dear Service Manager,
The front suspension and steering geometry changes that were introduced last month onto the
Tuscan chassis, will now also be introduced onto all Cerbera models. On V8 Cerberas from chassis
1417 and on the Speed Six from chassis 1432.
Once again, the new specification chassis frames and wishbones will be able to be distinguished
by identification holes added to the plate work at the front of the chassis and to the wishbones
themselves. In fact the same components as used on the Tuscan, are being used on the Cerbera.
The following tables list the new parts being used for both V8’s and Speed Six cars, the only
differences between the two chassis types being the chassis frame itself and the steering rack.
Cerbera 4.2 & 4.5
Description New Part No Quantity Per Car
RH Front Upright C0928 or C0930 1 off
LH Front Upright C0929 or C0931 1 off
Chassis Frame Assembly A0766 1 off
RH Upper Front Wishbone Assembly C0932 1 off
LH Upper Front Wishbone Assembly C0933 1 off
Steering Rack Assembly RHD H0746 1 off
Steering Rack Mounting Spacer H0750 2 off
Steering Rack Mounting Shim H0748 2 off
NB: THERE ARE TWO SETS OF PART NUMBERS GIVEN HERE FOR THE NEW FRONT UPRIGHTS, C0928/929
ARE MODIFIED VERSIONS OF THE EXTRUDED ITEMS C0423/424 AND HAVE AN ADDITIONAL SET OF
MOUNTING HOLES TO ALLOW THE UPPER BALL JOINT TO BE RE-POSITIONED. C0930/931 ARE REDESIGNED
VERSIONS OF THE EXTRUDED FRONT UPRIGHT, WITH ONLY ONE SET OF MOUNTING HOLES
FOR THE UPPER BALL JOINT IN THE NEW POSITION AND AS A RESULT ARE NOT COMPATIBLE WITH MK1
GEOMETRY CHASSIS. THE UPRIGHTS SHOULD BE USED IN MATCHED PAIRS, C0928 WITH C0929 AND
C0930 WITH C0931.
July 2001
Cerbera
Rear Tyre Fouling
186
To All Service Managers,
It has come to our attention that in some circumstances, Cerbera’s that were on the old style
18”wheels and then fitted with the new “Spider” type 18” wheels, are suffering from the rear tyres
rubbing on the inner rear wheel arches.
To overcome this problem it is necessary to carry out the following modifications;
Jack up the rear of the vehicle or put it on a ramp and remove the rear wheels.
Using a sanding disc, sand down the inside of the wheel arch from 45 degrees either side of the
vertical, so that the thickness of the wheel arch flange is gradually reduced to 10mm thickness at
the top of the wheel arch (Diagrams attached for reference).
If there are any cavities when you have finished sanding, these can be filled from the outside using
a sandable glass fibre repair paste (eg u-pol fibral) and then a filler to finish.
When it is finished and smooth, spray with a matt black paint and refit the wheels.
September 29th 2001
Cerbera
Change of Fusebox
191
Due to the obsolescence of the current fusebox used on Griffith/ Chimaera/ Cerbera (M0264) it
has become necessary to implement an alternative. Initially, in order to retain some stock levels for
Griffith/ Chimaera and a quantity for spares, all Cerbera’s from chassis no.1426 will have TVR part
No. M1276 fitted.
The fuse and relay list for this is as follows:-
Fuse No. Description Rating
1 Dip beam and Dim dip 20A
2 Sidelights and Rear Fog light 15A
3 Engine fan 1 30A
4
5
6 Horn 10A
7 Master Ignition 20A
8 Main Beam 20A
9
10 Starter solenoid 30A
11
12
13 Heated rear screen 25A
14
15 Engine fan 2 30A
16 Hazard lights 10A
17
18 Door lock ECU & Drivers window 20A
19
20 Boot light, Courtesy light & cigarette lighter 15A
21 Passenger Lock & Boot lock 10A
22
23 Drivers lock & Passenger window 20A
24 Gauges, mirrors, radio & dim dip 10A
25 Indicators, reverse & brake lights 15A
26
27
28 Heating & ventilation system 25A
29
30 Ignition coils 20A
31 Wipers & steering wheel ECU 20A
32 Immobiliser 10A
33 Injectors & engine ECU 15A
34 Fuel pump & Purge can 20A
35 Lambda heaters 7.5A
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