Tvr Clutches: Clutch Repairs

The Tvr clutch plate has a high friction coating on both sides and is fitted between the Tvr engine flywheel and a spring loaded pressure plate
The clutch is disengaged in manual gearbox versions when the clutch pedal is depressed.

Your Tvr clutch connects and disconnects the engine from the gearbox to allow for the smooth transition from one gear to the next and allows the vehicle to remain stationary with the engine running.

Does your Tvr need a new clutch?
Use our form to request a replacement Tvr clutch, slave or master cyclinder

If there is a slight leak in the hydraulic pipework or; more likely; the seals on the master or slave clutch cylinder then you may find it difficult to change gears as the clutch does not fully disengage

Clutch wear can make it difficult to pull away from a cold engine start without the engine juddering

If there is plenty of torque and the clutch appears to be slipping; then it may be that the high friction surface has worn away and a new Tvr clutch is needed

Tvr Hydraulic Clutch – Master Cylinder - Slave Cylinder
Operating the clutch pedal actuates a hydraulic piston linked to the clutch pedal
This increases fluid pressure to operate a secondary piston that engages-disengages the Tvr clutch plates

The clutch forms a mechanical linkage to transfer power from the engine/gearbox to the driving wheels of your Tvr

Tvr Clutch, Master & Slave Cylinder Repairs Longton

Longton: Tvr Clutch Fitting

Tvr Clutches
Tvr clutch repairs Longton - Checking for leaks and repairing-replacing the clutch master-slave cylinder and fitting a new Tvr Clutch kit

Tvr Electrical Components
Tvr electrical faults repaired using Tvr OEM components - Tvr sensors checked e.g. Lambda sensors, air flow meters etc

Tvr Alternators
Replacement Tvr alternators fitted

Tvr Cooling System
Replacement Tvr radiators fitted, cooling system pipework inspected for leaks and cooling fluid replaced to keep your Tvr engine at its optimal operating temperature

Tvr Gearboxes
Tvr Manual & Automatic gearbox servicing & repair - Fitting a new or reconditioned Tvr gearbox

Tvr Autoelectrics
Tvr electrical faults diagnosed - OBD fault finding - Tvr engine fault codes checked & service lights reset - ECU problems, key coding and CANBUS systems checked

Tvr Timing Belt - Tvr Cambelt
Tvr Timing Belts replaced as part of a planned Tvr service or if the Timing Belt on your Tvr has snapped then a full engine inspection for valve & piston damage

Tvr EGR Valves
Replacement Tvr EGR valves - ensure the exhaust gas recirculation system is functioning correctly on your Tvr - The EGR valve helps your Tvr burn fuel more efficiently by recirculating a portion the exhaust gas through combustion chamber and helps reduce Tvr engine emissions; a broke or sticking EGR valve can be the cause of an MOT failure due to excessive emissions

Tvr Starter Motors
Replacement Tvr Starter motors installed

Tvr Body Panels
Replacement Tvr panels fitted & sprayed to match - Light Tvr Panel damage repairs

Tvr Exhausts
Tvr Engine manifolds, Front box, Back box, catalytic converter and exhaust pipes for Tvr Exhausts fitted & welded

Tvr Paint Resprays
Paint resprays for minor scratch damage to the Tvr paint surface or coating; Custom paintwork to make your Tvr different using metallic paints, pearlescent pigments or company colours.

Tvr Suspension System
Tvr replacement shock absorbers & springs fitted for front or rear suspension problems, broken springs. Custom suspension systems installed, lowering springs fitted

Tvr Fuel Pumps
Often replaced at a milestone service if the fuel pump is operated by the Timing belt

Tvr Oil Change & Filters Replaced
Tvr Air filters, pollen filters; oil filter & fuel filter replaced, engine oil changed - Multigrade or Synthetic oils

Tvr Brakes
Routine Tvr servicing, replacement Tvr brake pads & discs fitted, Tvr hydraulic pipework and joints inspected, repaired or replaced for a complete braking system overhaul

Tvr Engines
Tvr Engine repairs, cylinder head skimming, valves & pistons

Tvr Performance Spares
OEM Tvr parts fitted or replaced with alternative performance parts

Tvr Tyres
Steel wheels, alloy wheels and tyres repaired and replaced with cheap tyres, run-flat tyres or low profile & performance tyres depending upon your budget and driving requirements. Part-Worn tyres may be available for your Tvr model

Longton Brake Servicing - New Disc Brakes & Pads

Tvr brakes can last for thousand of miles depending on use and regular service

The enforced contact between the brake pads and brake drum or brake disc increases friction to slow down or stop the vehicle

Braking increases hydraulic brake fluid pressure

Modern Tvr braking systems use hydraulic links to transfer stopping power

The brake pedal controls the Master Cylinder (a fluid filled hydraulic piston) that transfers stopping power to the brakes

The hydraulic brake fluid is a non-compressible liquid so braking pressure is transferred via the brake pipes to the wheels and operates a slave cylinder piston that forces the brake pads against a brake drum or brake disc

Tvr Disc Brakes and Drum Brake Systems

Drum Brakes, if fitted, are usually found on Tvr rear wheels

Drum Brakes are an older system than Tvr disc brakes and use two half moon shaped brake shoes that move outwards during use to apply a frictional stopping force against the inside of a brake drum

Hydraulic braking pressure forces a brake calliper to press the brake pads against the disc to apply the necessary stopping force

In hydraulic braking systems, braking pressure operates a slave cylinder

Tvr disc brakes have a pair of high friction brake pads mounted either side of a brake disc

Tvr Brake Servicing - Tvr Brake Maintenance & Parts Replacement

Tvr brake discs will wear and need replacing eventually and should be inspected for pitting

The brake pads on your Tvr should wear first

If the Tvr brake discs warp then they should be replaced immediately

if the Tvr brakes overheat and are allowed to cool with pressure still applied for m the brake pads/shoes then it is possible for the disc to warp.

Tvr Brakes will safely function correctly without the need for replacement for many thousands of miles

Tvr Brake Servicing & Inspection Longton

Hand brake linkage condition

General brake disc condition

Brake calliper operation

Replace Brake Fluid if necessary

Hydraulic brake pipe fittings and joints for corrosion and leaking

Adjust handbrake

And carry out the following maintenance of your Tvr braking system:-

Handbrake function and travel

Wheel cylinder condition

Correct brake pad movement and level of wear

Top Up Brake and Clutch Fluid Levels or

Lubricate Hand Brake Linkages

Brake drum condition

Auxiliary handbrake shoes where appropriate

Clean and remove brake dust and loose corrosion and dirt from drums

ABS warning light operation

Brake pipe Condition

Tvr Steering - Steering System Inspection

The tyres will need to be replaced much sooner than necessary until the steering rack is adjusted to bring your wheels into correct alignment

The tyre tread is rapidly removed from the inner or outer tyre edge of your front tyres

Common symptoms of Tvr steering alignment problems include:-
Vehicle Drift - Your Tvr tends to pull left or right when travelling in a straight line
Modern Power steering and Drive by Wire Systems do not have the same mechanical linkages between the steering column and drive wheels making it difficult to 'feel' how the steering is performing.

One of the first signs of a potential problem with your Tvr steering system is uneven tyre wear

Tvr Steering, Wheels & Tyres:-

Wheel Bearings for wear - play or noise

Correct Tyre Pressure - inc Spare

Correct wheel nut torque to manufacturer's recommendations

Steering Linkages for wear and corrosion

Tyre Condition - inc Spare

Steering Rack Gaiter condition

Steering Condition

Tvr Tyre wear and wheel alignment

Power Steering Reservoir Levels and Top Up

Correct wheel balance, including spare

Tvr Brake Servicing: Brake Discs, Pads & Hydraulics

Braking increases hydraulic brake fluid pressure.

Modern braking systems use hydraulic links to transfer stopping power.

The brake pedal is attached the Master Cylinder; a fluid filled hydraulic piston.

Brakes can last for thousand of miles depending on use and regular service.

The enforced contact between the brake pads and brake drum or brake disc increases friction to slow down or stop the vehicle.

The hydraulic brake fluid is a non-compressible liquid so braking pressure is transferred via the brake pipes to the wheels and operates a slave cylinder piston that forces the brake pads against a brake drum or brake disc.

Replacement Tvr Timing Belt or Cambelt

Generally Tvr belts should be replaced every 60,000 miles or less. So, if you have just bought a secondhand Tvr that has 40,000 to 80,000 miles then it is important to know if the timing belt has been replaced or needs replacing. Check the Tvr Owner's manual for your model for the recommended changing frequency

High compression diesel engines are normally interference engines

The Timing Belt synchronizes the camshaft to the crankshaft position ensuring the valves open and close at the correct time in relation to the piston. Some vehicles use a cam chain in place of the belt or a timing gear system instead

The toothed belt connecting the engine crankshaft to the camshaft is known as the Cambelt or Timing belt

Often it is prudent to replace a combination of items associated with the timing system. Most of the needed Tvr parts can be obtained as timing kits containing the appropriate timing components; such as: Tvr timing belt
timing belt tensioners
timing belt tensioner idler roller
front lower crank shaft seal
water pump gasket

If the timing belt snaps it will most probably cause serious engine damage. The camshaft stops turning with some of the valves left in the open position. In a Free Running Engine there is enough clearance between a fully open valve and the piston head to avoid serious damage. In an Interference Engine there is no clearance and the engine relies upon accurate timing to keep the valves and piston head separated. With a broken timing belt; the inertia helps the crankshaft to rotate freely forcing the pistons to strike the open valves resulting in damaged valves, pistons, and possibly even damage to the cylinder head

Since Tvr Timing Belts are hidden inside the engine they tend to be forgotten when purchasing a used Tvr

Timing belts must be replaced at a specified manufacturer's interval. The timing belt should also be inspected regularly and replaced immediately if there is any evidence of cracking or fraying cuts or excessive wear

Tvr Fuel Injectors - Fuel Injection

Tvr Fuel Injection
Fuel injection systems mix fuel with just the right amount of air for optimal combustion & energy release in an internal combustion engine

EFI - Electronic Fuel Injection
The Tvr fuel injection system is controlled by a mini-computer or Electronic Control Unit (ECU) that assimilates data from a series of temperature sensors and oxygen or lambda sensors providing feedback to help optimise fuel efficiency and power under a variety of conditions

LPG Petrol or Diesel Metering
Fuel Injection systems have replaced carburetors for the accurate mixing and delivering of petrol, lpg or diesel fuel in modern Tvr vehicles

Tvr Re-Mapping Longton
The Tvr ECU can be replaced with a programmable ECU or re-mapped to electronically alter the engine performance characteristics

Tvr Engine Mapping
The Tvr ECU controlling engine performance is pre-programmed with software containing embedded data on engine performance for different combinations of engine speed and acceleration

Longton Maintenance - Tvr Oil Change

Oil Change Masterclass
Keep a small amount of the engine oil used in your next oil change in a sealed container; then when you check your oil level with the dipstick you can compare the lubricity or lubricating properties of the oil against your fresh oil:- If the oil on the dipstick seems thin compared to your reference oil sample; it may be time to get an oil change to keep your Tvr running smoothly

Synthetic Oil Change - Longton
Modern synthetic oils can last longer than old petroleum based multigrades because they are more inert with a laboratory designed molecular structure and fewer natural catalytic impurities that increase oil breakdown compared to the cheaper engine oils

Oil & Filter Change
A new Tvr oil filter and oil change shouldn't need a specialist Tvr engineer and is minimal compared to the cost of an Engine Rebuild; with regular maintenance and routine servicing working out cheaper than disaster recover when your Tvr engine fails

Anti Oxidants
Preventing internal engine oxidation in your Tvr motor is the job of sacrificial anti-oxidants present in the lubricating oil; Anti oxidants are sacrificed to protect your engine and will eventually be depleted making it necessary to change your oil regularly

Moisture Scavengers - Detergents - Acidity Regulators
Moisture scavengers, detergents and acidity regulators prevent all kinds of contaminants degrading and abrading the internal moving surfaces of your Tvr engine minimising the effects that water, particles, and fuel combustion residus can have on Tvr performance
Once they have absorbed the maximum amount of water and other contaminants; the risk of corrosion and failure in your in your Tvr engine increases

Oil Change Frequency
The mechanics rule of thumb with traditional multigrade engine oils used to be "change the oil every 3000 miles" but many vehicle manufacturers indicate 5000 to 7000 miles. Initially, follow the Tvr recommended oil change guidelines to ensure you validate your warranty.

Oil Composition
Engine Lubricating Oil is composed of hundreds of chemicals; some can interact chemically, polymerise, oxidise and break down with the extreme conditions of temperature & shear forces pulling the oil molecules apart in your Tvr engine thus, changing the lubrication properties.

Longton Exhaust Fitting Tvr

The exhaust pipework helps muffle and deaden the noise from the fuel combustion process

Corroded exhaust pipes allow fumes and noise to escape; increasing the risk of poisonous carbon monoxide entering the cabin and significantly increasing noise making detection an easy task

The Tvr exhaust system allows poisonous gases from the fuel combustionto vent into the atmoshpere away from the driver and cabin

Explosions from the instantaneous ignition of the compressed fuel and air igniting in the combustion chamber creat a lot of noise that needs to be silenced in the urban environment

Tvr Clutch Fitting Longton

The pressure plate comprises heavy-duty release springs, a metal pressure ring acting as a high friction surface to interact with the clutch disc, a thrust ring (or thrust fingers) for the release bearing, and release levers

When the clutch is dis-engaged the clamping force is removed so the clutch disc spins with the flywheel and no power is transmitted

The Tvr clutch disc is, not surprisingly, a disc with each side covered in a high friction material. It is designed to engage with the high-friction surfaces of the pressure plate and flywheel. It is also designed to transmit power to theTvr transmission system

The centre of the clutch disc has a spline pattern that matches splines on the power input shaft of the transmission system

Engaging the clutch forces the clutch against the flywheel transmitting power from the crankshaft to the transmission shaft

Disengaging the clutch acts on heavy-duty release springs to isolate the pressure plate so that the disc is no longer pressed against the flywheel

Tvr Clutch failure often occurs when one or more of the high friction surface materials wears out on the disc. Even when the pressure plate is engaged and a clamping force is applied, there is no longer sufficient friction to transmit power without the clutch slipping. Normally the Tvr clutch disc and pressure plate are replaced. Replacing the Tvr Clutch is a major operation and it is sometimes advisable to replace a number of items, often supplied as a Tvr Clutch kit:-
Tvr clutch disc
pressure plate
release bearing
pilot bearing - bushing (when required)
internal Tvr clutch slave cylinder