XJS & XJ from KWE Cars
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Jaguar XJS

7 tips for preventing fuel system failures

As one of the UK’s leading restorers of luxury classic cars, we come across all sorts of common problems that require the attention of our specialist engineers.

At KWE our aim has always been to ensure our customers receive a ‘better than new’ restoration service for their Jaguar XJS, XJ, XK and Aston Martin DB7 vehicles. So, we believe it’s important to share information that will ensure these vehicles maintain their reliability and roadworthiness.

We’ve noticed an increase in the number of classic cars being delivered to us for restoration with fuel system failures. Here we offer 7 preventative tips that will keep your vehicle in good condition and help avoid expensive remedial repairs.

Rust and sludge

The primary problem is due to the accumulation of rust and sludge in the fuel tank.

Even though high quality fuel filters are used in the fuel system, fuel pump damage and clogging of the injectors can occur.

 

An internally seized fuel pump caused by rust and sludge

An internally seized fuel pump caused by rust and sludge

Rust forms when moisture and air come into contact with unprotected steel. To prevent your fuel system from being attacked by rust it’s important to eliminate at least one of these materials.

The inside of a fuel tank showing heavy contamination with rust and sludge

The inside of a fuel tank showing heavy contamination with rust and sludge

  1. Keep the fuel tank topped right up so that air (oxygen) is largely excluded, unless the car is used at least weekly
  2. Try to avoid high ethanol petrol since it absorbs water from the atmosphere. You can ask the fuel company or forecourt manager about the ethanol percentage of the fuel it uses. Ideally, you should try and avoid fuels with ethanol content greater than 5%. On the continent, especially France, high ethanol percentages are common. If you drive overseas, try to burn off all the fuel that was purchased while abroad and then replenish with British fuel. Fuel with high ethanol content will affect the performance of your classic car and lead to the corrosion and deterioration of the fuel system and other engine parts.
A container of fuel removed from a car that had inexplicably broken down in France. After a local garage had misdiagnosed the fault, the vehicle was sent to KWE for further investigation. Particles of dissolved rubber hose were found in the French fuel caused by the high ethanol content. This in turn led to clogging and the eventual seizure of the fuel pump

A container of fuel removed from a car that had inexplicably broken down in France. After a local garage had misdiagnosed the fault, the vehicle was sent to KWE for further investigation. Particles of dissolved rubber hose were found in the French fuel caused by the high ethanol content. This in turn led to clogging and the eventual seizure of the fuel pump

3. Help protect the injectors by adding a petrol additive such as Forté Specialist Injector cleaner. For long term use Forté Advanced Gas Treatment (search eBay)

4. Avoid filling up at a petrol station if a forecourt tanker has recently visited to refill the underground storage tanks as this process can stir up the water in them which then ends up in your own vehicle’s tank

5. Have your tank and swirl tank emptied and cleaned out at least every ten years. Ideally have the tank treated internally so that the normally bare steel is coated

6. If your vehicle isn’t driven regularly then run your engine once a week for at least 15 minutes to keep the injectors working properly. Ideally, drive the car for a few miles to keep the brakes working and tyres exercised, while avoiding wet or salty conditions

7. The slow evaporation of the volatile elements of fuel results in a sticky and non-combustible residue. This can clog fuel injectors and prevent the car from starting and running smoothly. It’s therefore important to drain and replenish with fresh fuel if the vehicle is left for any length of time

Additional tips for preventing classic car rust can be found here. Happy motoring!

Invest in a Jaguar XJS, a modern classic with prices on the rise

Why invest?

Over the past 10 years, the value of classic and luxury cars, as measured by the Knight Frank Luxury Investment Index, has increased by 467 per cent. To put this incredible performance in perspective, this compares with a rise of just 111 per cent in the top end of the London residential market. Hedge fund managers saw returns of only 7.73 per cent over the same ten-year period. The index has reported a continued rise of 17 per cent over the course of 2015 alone. Due to this meteoric rise in value, classic cars are beginning to be recognised as an asset class in themselves, rather than just high-value collectibles.

Buying a classic car is clearly a smart investment choice, particularly as the stock market is volatile and interest low post-Brexit. At a time when there is little benefit to keeping cash in the bank, why not invest in an asset that will not only hold its value, but also bring you years of enjoyment? ‘Passion investing’ is increasingly expanding into the classic car arena; in the last 3 to 5 years, the volume of global purchases has exploded, driven by investors rather than casual collectors.

What to look for?

The best investment strategy is purchasing the ‘right’ brand of classic car. Only certain quality brands will hold value, including Ferrari, Lamborghini, Aston Martin, and, of course, Jaguar. Look out for cars with documentation and proof of ownership (we have a selection of classic cars for sale here). The car should be in investment-grade condition, or restored to a high standard – something that our wide range of services can certainly help with. Other strategies include choosing a car that was iconic in its time, or is known from TV and film.

Why an XJS?

Cars from the 1970s to 1990s are beginning to be seen as ‘young’ or ‘modern’ classics, ideal for long-term investment. According to current market trends, prices are set to rise considerably. The XJS, created in 1976 in the shadow of the E-Screen Shot 2016-07-29 at 15.07.30type, quickly won over enthusiasts and achieved a long production run, appearing in numerous TV shows over the years, including The Saint. The car’s instantly recognisable lines have cemented its iconic status and ensured lasting appeal.

The XJS continues to be cited as one of the top modern classics, with numerous publications extolling its virtues. Classic Driver, The Sunday Times and AutoExpress have all published guides to investing in classic cars that recommend the XJS.

Why now?

As well as the beauty, driving experience and nostalgia-factor of the XJS, the potential for returns on investment has also been widely documented. Classic Register named the XJS as one of the ‘Top 10 Affordable Future Classics,’ saying that ‘Many are now starting to recognise the significance of the XJS… which can only mean good things for value growth in the long term.’ Petrol Blog included it as one of their ‘Top Ten Modern Classics with Investment Potential,’ noting that ‘prices seem to have really jumped in the past few years and this is a trend that will almost certainly continue.’ Tellingly, Autocar has predicted that the XJS will never be cheaper than it is at the moment, advising: ‘Find a good XJS and you’ll have an appreciating classic. Old Jags are in demand.’

Clearly, there are compelling reasons to purchase an XJS now, as more and more investors catch on to its appeal and prices continue to soar.

 

Contact the experts

If you need help sourcing a classic car or Jaguar XJS, or would like to discuss a Jaguar restoration project, then contact us at info@kwecars.com to find out how KWE can assist you.

Customised Convertible

customised convertible1

Get involved in this XJS Convertible restoration project – what will you choose?

We’ve been busy beginning restoration on this XJS V12 Convertible, offered for sale. Hailing from Liverpool, it has very low mileage, and will be an affordable and cost-efficient classic car once our work is finished.

customised convertible2

All we need now is you! Would you like to play a part in the car’s restoration specification – and perhaps become its new owner? We’re inviting our readers to suggest improvements, such as the colour scheme for the body paint and interior. This is a chance to build the classic car you’ve always wanted!

You can find some photos of the work so far here. As we go through the process of dealing properly with typical rust issues, we’re relishing transforming this convertible into a very strong and reliable XJS.

If you’ve got some great ideas for this Jaguar, we want to hear them – contact info@kwecars.com

A real head turner – Low-mileage V12 XJS convertible for sale

Jaguar XJS V12 convertible (1992)

The roof is down, the wind is in your hair and all that lies in front of you is the open road and the perfectly tuned V12 engine of our latest Jaguar XJS offered for sale.

Solent Blue with a cream leather interior and American Walnut veneers. DSCF2849-S

We’re selling this superb example of a 1992 V12 XJS convertible on behalf of one of our clients. It’s been given the full KWE treatment with our full suspension, brakes and steering renewal and upgrade package, providing that familiar smooth and comfortable ride you’d expect from all of our fully-restored classic Jaguar cars.

With only four previous owners, this low-mileage XJS has just over 40,000 genuine miles on the clock. Its exterior is matched by the quality of workmanship and time spent on its interior. Finished in Jaguar Solent Blue with a cream leather interior and American Walnut wood veneers, this superb convertible sports car is guaranteed to turn heads whenever and wherever it’s driven.

For a full suite of pictures please click here.

For pricing and detailed service information, visit our website here.

You can see the full range of our cars for sale here.

Jaguar XJS: the ‘great grand tourer’

Tony Bray 2

Continuing our series of guest blog posts, we asked loyal customer Tony Bray to tell us why he chose his XJS, and how KWE helped to make it ‘the best car it could be.’ (more…)

Car of the month: Jaguar XJS V12 coupé

Our Jaguar XJS restoration skills were fully utilised during one of our latest projects, which features as our ‘Car of the month’ for March 2016.

Fully restored Jaguar XJS V12 coupé

Fully restored Jaguar XJS V12 coupé

The new owner of this stunning example of a fully restored XJS V12 coupé requested that we first find and purchase the donor car. (more…)

Suave and sophisticated – that’s the Jaguar XJC

The Jaguar XJ and XJS are widely acknowledged as one of the most beautiful luxury saloon and all-round accomplished sports cars ever made. So, it’s no surprise that the team at KWE is always on the look out for challenging new projects to work on.

With our engineering expertise and passion for Jaguar cars, we’re able to offer a high-quality restoration service. Our aim is to restore all of our Jaguar XJS and early XJ saloons cars to a ‘better than new’ standard. (more…)