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114,000 Miles in a TVR S3
This  information has been gathered from personal experience and is  believed to be  accurate but there is no guarantee that this is the case. Anyone  using this  information does so on the  understanding that its use is completely  at their own  risk and that no liability for errors or ommisions or consequential damage to  persons or possessions will be accepted by the author  or his agents. Prospective  users should make their own considered judgement or  seek specialist advice as to  the accuracy or otherwise of any statements made  before using this information  in  anyway.

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The  First 60,000  Miles
H 408 WDM, an early TVR S3 was bought privately in 1992  with 13,000 miles on the clock. Over the years another 101,000 were added during  which I experienced periods of frustration, the odd fright but generally very  enjoyable motoring. When sold at 114,000 miles the car was performing rather  better than when purchased at 13,000, the following jottings will hopefully  explain why.  The car was only used between May and November, mainly for commuting the daily 100 mile round trip to Newcastle. Living in rural   Northumberland these journeys were a mix of twisty A roads, dual carriageway with a few miles of city crawl. All maintenance/repairs were
carried out personally but I do have the advantage of decent workshop facilities including a  4 post lift and a friendly TVR dealer,  just 25 miles away.  The first problem encountered  was contrary to most TVR owner’s experience, the car would not reach working temperature, resulting in very rough running. Changing the thermostat had no effect. On closer inspection the stat housing had a few surface high spots from a poor casting and these were suspected of causing the stat to stick open. It  was easier to reduce the diameter of the thermostat by a few thou rather than tackle the housing - this cured the fault instantly and the car warmed up within  3/4 miles as it should. 

The chassis and the petrol tank were rusting  quite badly so both were de-rusted, painted with Bondaprimer and then treated with Waxoyl. The tank coating was still fine at 110,000, but the chassis coating  only lasted a few months. I now prefer to de-rust, apply two coats of  Bondaprimer or Unidox Primer followed by a top coat of ordinary household enamel. Many  proprietary paints have been tried but my experience is that good quality enamel  gives better protection. The most prone areas of the chassis are just behind the  front wheels here the chassis takes the full force of mud grit etc. blasted  against it. A sheet of 16- gauge aluminium was cut and bent to protect the front  cross member and secured with self-tapper’s to the chassis. This proved most  effective. I found that the de-rusting and painting process needed to be repeated  annually to maintain protection.

At 45,000 miles one sunny day while driving up the M6,  disaster struck. The brakes completely failed. Only rapid pumping of the right  foot and manic application of the handbrake avoided a hefty laundry bill. No  leaks were apparent from the calipers or wheel cylinders so the master cylinder  seals were replaced. This made little improvement. Further inspection revealed  that the plastic unions on both the master cylinder and the reservoir had  imploded thus blocking fluid from reaching the master cylinder. (See Photo’s) It  was assumed that the heat from the exhaust manifold had softened the plastic so  much that sharp braking had caused them to collapse. Apparently this is not an  isolated occurrence.

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A new master cylinder at £200 would have cured the problem but it seemed a bit steep as all I really  needed were a few 20 pence unions that were not available. The solution was to replace the reservoir with a steel unit from an old Landrover and a friend turned some new master cylinder unions from brass. These were fitted and the  problem was cured.

The brake pads and linings seemed to last for ever perhaps my atypical route to work with little braking during the journey  accounted for this. I first changed the disk pads at 68,000 miles not because they had worn down but that I felt it would be prudent to replace them. The rear  brake slave cylinders were replaced at 57,000 miles due to leaking seals.

The flimsy sun visors developed brewers droop but a simple cure (for the visors) involved winding two layers of masking tape around the  spindles. Simple but effective.

A constant irritation was  bombardment  by flies and other debris through the ventilation (fresh fly) vents. By  stretching a thin layer of synthetic cushion wadding inside the entry ducts on  the bonnet, this debris was very effectively filtered and the cabin was much cleaner. The airflow is reduced but by restricting the wadding to a thin layer  the ventilation was still quite adequate.

At 60,000 the  steering became ultra sensitive, the slightest road undulation throwing the car  all over the place. As the car had just passed its MOT I did not suspect the  normal front suspension wear points. After changing the steering rack, checking  the tracking and castor/camber angles all to no avail it turned out to be a worn  top ball joint that had escaped the MOT tester.

From the start of my  ownership the car had always tended to be quite rough when cold, especially at  low revs, with quite violent juddering of the drive chain. This usually  disappeared when traveling at a reasonable speed with a warm engine. Two factors  were found to be causing this:

(1) The multi-way plugs and sockets  located around the top off side of the engine that connect sensors and injectors  to the Electronic Control Unit (ECU).

(2) The  throttle Position Sensor (TPS)

The multi-plugs are of questionable quality and  frequently produce intermittent connections resulting in juddering at low revs.  By replacing them with waterproof connectors (see supplier) this problem was  completely eradicated. The TPS is a frequent culprit, a quick check is to unplug  the TPS and see if the engine runs more smoothly, if so the TPS is likely to be  faulty. The ECU will revert to a less dynamic mode and will substitute a fixed  value for the TPS, the engine will then not be running as efficiently as it can  but if the TPS was originally faulty the engine should run a great deal more  smoothly. A new Ford TPS can then be fitted. I changed the TPS three times  during my ownership. of all the  remedial steps taken during the 11 years  of running the S3 these two have had the most profound effect on overall  smoothness of acceleration and performance. 
  
The Next 40,000 Miles
During the 100,000 miles, the TVR S3 only let me down twice. The  first incident I should have predicted. There had been a smell of ozone in the  car for several weeks and this usually signifies arcing electrical contacts. One  morning while negotiating Newcastle traffic, the car suddenly cut out and  coasted to a halt. The engine could not be turned over and it seemed as if  everything had died. A bit of logical fault-finding located the problem – another connector had failed, actually burnt out. This time it was the  plug/socket connecting the ignition switch to the loom within the steering  housing. As a temporary fix I bypassed the offending contacts and was able to  get going. Later at home I removed both plug and socket and soldered and sleeved  the cables together. No more problems! If the ignition  switch had ever needed  changing it would only have been a five minute job to re-solder the connections.

The second breakdown was more serious but it did result in the quietest,  most economical run ever – on the back of an RAC transporter! I had attempted to  start the car for my 50 mile commute home, the engine turned but it just  wouldn’t fire. No amount of fiddling and swearing would fire it up; the fuel  injection system had shut right down. As it was getting dark I called the RAC.  The friendly patrolman did his diagnostic  and announced that the ECU was  faulty, he even phoned through to the RAC technical centre who confirmed that  the ECU had died.   A few days later with the help of a Gunson Fault  Code Reader for Ford EEC 1V ECU,s **  plugged into the diagnostic socket the  problem was traced to the Throttle Position Sensor (TPS), as it had only been  replaced a few weeks earlier I initially ruled this out but sure enough by  unplugging the TPS the engine fired first time and ran O.K. Measuring the TPS on  the bench with an Ohmmeter I discovered that the TPS had shorted out. Presumably  this had caused the ECU to shut down. As explained previously the engine will  run without the TPS in circuit but in a less efficient manner. I mentioned the  problem to my local TVR dealer and they confirmed that the Ford ECU’s are  actually very reliable and that in their experience the ECU is very unlikely to  be faulty. At around £600 a throw I wonder how many have been changed in error?

** Probably now obsolete  but do turn up on eBay. There are two types the 5 pin version for  non-catalytic  converter 2.9 engines and the 3 pin for 2.9 engines with cats.

One useful tip  gleaned from the RAC patrolman was the use of a device, an injector pulse tester  that indicates whether or not an injection pulse is present at each injector.  The relevant injector is unplugged from its loom connector and the tester simply  plugs into the socket. An LED (Light Emitting Diode) flashes when a pulse is  present. The Lucas YWB185 device is shown below:
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 The Lucas  device may now be difficult to source but Sealey market a similar tool,the VS213 Noid Set that is  actually 6 separate indicators to fit a whole range of harnesses, but check it will fit the Ford loom fitted to the  S3. 
The S3 was always laid up over the winter months  but this did cause a few problems. The brake discs tended to rust quite severely  even to the extent of separating the two halves of the disc. The tell tale sign  is a dramatic vibration through the pedal as the brakes are applied.  The exhaust  system also collects condensed water, I drained over a pint after one winter.  The original steel system lasted about 7 years (68,000 miles)


Lucas Injector Harness  Tester

which I thought  pretty good. The replacement stainless system was much noisier and had a habit  of blowing the top off the central rectangular silencer box, I became quite  adept at Mig welding the top back several times. One thing often overlooked with  SS systems is that although the metal may last virtually the life of the car the  inner sound deadening material will only last a few years. During one of the  silencer top re-fixings I fished out the old fibre glass wadding, it was nearly  solid and wringing wet. After a visit to the local fibre glass fabricators I  came away with a pile of fibre glass matting off-cuts big enough to choke a  horse, all for a donation to their biscuit fund. The  repacked silencer was a revelation, proving that the gradual degradation  generally goes unnoticed at least by the driver. 
  
The electric radiator fan failed at 78,000  miles, no prizes for guessing that it was the connectors that had failed.  Radiators seem to have a hard life in TVR's the  average life expectancy for the S3 was about 30,000 miles. I had the radiator  recored three times. 
At 99,000 miles The car was given a treat by  overhauling the suspension: springs, shock absorbers, bushes and ball joints  were all replaced. The handling was transformed, it felt like a different  car.
Around 100,000 miles while recommissioning after  a winters lay up the brakes seemed to require a lot more pedal pressure. On  investigation the brake servo from the top seemed fine, but when viewed from  underneath........ rather a different story:

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The replacement was liberally treated with underseal to prevent a re-occurrence. 
The oil pressure sensor was another item that failed twice. The first one leaked oil so much that I thought it was a major engine oil leak. At 112,00 miles the oil pressure reading started  to fluctuate and I initially thought the engine required a major overhaul, but  no, it was simply a faulty sensor. 
At 114,000 miles the S3 was  running perfectly it burnt hardly any oil between changes and without doubt ran  much smoother than when purchased at 13,000 miles. The only reason for selling was that I fancied a Griffith. The S3 was eventually sold to a gentleman of the  cloth who I understand enjoyed the car for 6 years, apart from normal servicing a clutch change was the only major item he required. The car now has a  new owner  who apparently uses it regularly. 
Regular maintenance is  definitely the key especially regarding engine oil changes, I always used fully synthetic and did not pay £30+ for 4 litres. I used a fully synthetic blend from  a local oil supplier at a fraction of the price. For my type of driving it has  proved most satisfactory. 
Footnote: 
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                                                                           Who  said TVR's Dont pull the birds?
  
If TVR  had used Japanese electrical connectors this article would probably have only  been a few lines! Finally a big thank you  to the three main driving forces behind TVR: The late Trevor  Wilkinson, Martin Lilley and the late Peter Wheeler all ex MD's of TVR who  between them and their staff created some splendid original vehicles, a pity one  of these are still not at the  helm!
The Fourth owner Rory Yardley has kindly continued the story
The Next 12,000 Miles

It’s fair to say that H408WDM has not been collecting the  miles at quite the same rate as under Paul’s stewardship. The ‘gentleman of the  cloth’ had added another 6000 miles in the 5 years he had the car and when I  bought the car the mileage stood at just over 120K. The good reverend had some  other interesting cars, one of which being a pre WW1 Renault that his family had  owned from new, adorned with the first Cumbrian number plate  AO1. I’ve put another 6000 miles on the car, mainly using it  for sunny day commutes to West Cumbria, a 90 mile round trip across two  sets of Cumbrian fells. Its been very reliable, although my definition of  reliability is that I’ve always got home under my own steam! The two minor  breakdowns suffered were a cracked clutch pipe and a broken throttle cable. In  the first case I got home by starting the car in third and not stopping at any  junctions and in the second, we rigged the cable back to my car school  passenger, who operated it by hand through the passenger window. By the end of  the journey he was getting the power on nice and early in the corners, and  blipping the throttle on the downchanges!  Obviously the car is getting on a bit now, and I’m slowly working through a rolling restoration. The chassis has needed some welding,  although Pauls regular Hammeriting and Waxoyling have helped. I’ve replaced the  shocks and springs, clutch master cylinder, steering column bearing and front  brake discs. Otherwise its been mostly cosmetic. The drivers seat has had the  foam replaced, the dash re-veneered (in real wood!) and I’ve swopped the droopy original mirrors for the chrome bullet type. I also swopped the original fixed  aerial for a telescopic chrome item. I think the chrome mirrors and aerial go  with the petrol cap and door handles; they add to the retro look of the  S. Big jobs to come include a bonnet repaint (120K miles worth of stone chips would appal many TVR owners!) and finally fixing the  drooping drivers door. 
To sum up, an S is simple, reliable, easily fixed, and  they make a great noise. I cant think why prices remain so low! 
 
Rory Yardley
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