The recent recommissioning and remedial work included all fluids being drained, flushed, and refilled. A new battery gave life to the new sparkplugs, which fire as they should thanks to new HT leads and a distributor cap and when they should thanks to the timing and valve clearances being set up properly.
One carburettor jet was replaced and the twin Stromberg carburettors were balanced and the idle and fast idle reset. New cables for the throttle and choke were fitted, as were new engine mounts.
Other recent work includes a new heater hose and a replacement control valve, new wiper arms and blades, a reconditioned clutch master and slave cylinders, and the righthand upper steering swivel replaced.
The battery tray was repaired and strengthened, the boot sealing rubber was replaced along with the carpet, a new windscreen rubber and filler strip were installed, a new pair of horns now give a satisfactory ‘parp’, a new window washer pump aids visibility, and a new earth strap to the antenna and a headlamp vacuum hose help keeps things operating as they should.
UK-specific jobs included headlights with the correct right-hand-drive pattern and the original mph speedo refitted complete with the appropriate gearbox drive gear.
Incredibly, the Elan still sits on the original factory chassis, which is remarkable and only possible due to a winning combination of a diligent owner, 25 years of careful storage, a period Waxoyl treatment in 1985, and the preservation of the original and intact red-lead factory paint. As you can see in the photos, the usual high-risk areas of the Elan chassis are good. We are told that the box chassis areas all seem solid when probed with a screwdriver and mallet.
While it is unrestored as such, the bills that come with the car show that during the 1980s and 1990s many items have been reconditioned, replaced, or rebuilt to cope with the inevitable age-related deterioration.
These include:
• The engine, gearbox and differential being rebuilt.
• The brake calipers have been reconditioned with new pistons, along with the fitment of a new brake servo.
• All the suspension, steering and roll bar bushing has been replaced along with new trunnions and steering swivels and a reconditioned steering rack with new track-rod ends.
• New dampers and springs were installed.
• The cooling system has been upgraded in line with the Lotus’ factory recommendations. The work comprised the uprated radiator and cooling fan as fitted to later Elan models, improved engine compartment ventilation on the exhaust side, and a blanking plate under the radiator along with foam blanking above it.
• A new fuel tank and wheels were fitted.
• The front wiring harness was replaced and hazard warning lights were installed.
The car is one of the 924 units made for the UK/European market with Stromberg carburettors rather than the Webers, or less frequently Dellortos, that are more conventionally associated with the European Lotus TwinCam engine. Some aficionados malign the Stromberg carburetted engine, which is unfair as this is largely due to the poor power output of the US emission-strangled export cars.
The owner tells us that the ‘high-lift’ camshaft that was later used on the Elan Sprint was developed for the European Stromberg-carburetted engine. As a result, these engines are thought to produce 118bhp, which is only 8bhp down on the 126bhp of the later S4 Sprint.
Indeed, as Miles Wilkins quotes in his book The Lotus Twin Cam, Roy Babcock (then the service manager at Lotus) preferred the Stromberg engines because they “gave better fuel economy and made the engines smoother across the entire rev. range. They also produced the some of the fastest Elans known, which were even quicker that the Sprint. All in all, they were better to drive behind than Webers. Even today [1988] many people in Hethel still prefer Strombergs but fashion dictated the return of the four trumpets [Webers]”
A further boost the Elan’s reliability and performance and reliability comes via a non-original electronic points module designed specifically for the car. This was fitted to reduce points-bounce and results in a more consistent ignition timing. The original mechanical points are with the car and can be refitted for originality.
A compression test shows three of the cylinders with between 190psi and 200psi. The factory specification is >170psi and all cylinders within 10 psi of each other. However, cylinder number three shows just 170psi. It is suspected that this is due to a poorly seated exhaust valve rather than an issue with the bore or rings. The valve clearances, which are critical on the Lotus TwinCam, have been checked and are correct. This is perhaps something that should be checked after a few thousand miles to see if it has improved. Should the issue persist, lifting the head and reseating the offending valve might be required but it’s worth remembering that this is more a question of balance across all four cylinders than a worryingly low reading per se.
The engine bay itself is gorgeous, even if the engine and cam covers aren’t the correct shades. Still, if that sort of thing bothers you then you’ll have hours of fun putting it right and if you’re not then you’ll have even more hours of fun thrashing it up and down the rev range and listening to it wail.
Speaking of noise, the exhaust silencer is a stainless-steel unit and in perfect condition as is the piping all the way through to the manifold. It also has the earlier Series 4 straight twin silencer exhaust, which is more efficient than the later version albeit a little bit louder. Still, you don’t buy a sportscar for an absence of noise, do you?
All brake calipers and pads show little wear and aging since being replaced by remanufactured units in the early 1990s. The brake servo is said to be in as-new condition. The owner reminds us that the original servo or the associated service kits have not been available for many years, so the unit fitted is not cosmetically true to the original factory fitted item.
All suspension bushes are said to be in an excellent condition, as are the Rotoflex drive couplings. The same goes for the front dampers and springs.
There are some niggles you’ll want to address but then fettling is going to be a key part of the pleasure you’ll derive from owning an old Lotus, so you might as well dig out your old AF spanners and work your way through the owner’s (unusually honest) list of things that need doing.
There are a couple of small oil leaks around the engine including an occasional drip from the bottom of the bell-housing. We’re told that an investigation showed that this is most likely from the rear of the sump rather than the crank seal. There is no sign of oil finding its way on to the clutch.
Although the chassis is in exceptional condition as far as rust is concerned, it is often the case that the front suspension turrets will have sagged slightly with age, leading to a small error in the front suspension geometry which causes a noticeable tug on the steering wheel.
The factory originally fitted shims under the steering rack to compensate for the manufacturing tolerances in each chassis. On this vehicle, the shims are rather thick, which suggests an attempt to dial-out the bump-steer caused by a tired chassis.
The new owner might want to check the dimensional accuracy of the front chassis members and adjust mechanically if required. Again, we can’t help but think that the owner’s perfectionism means he’s overstating the issue. In fact, he himself admits that: “any grave problem in this area would be apparent whilst driving the car and/or in tyre wear, which is not the case. However, someone seeking ‘as-new’ handling might want to investigate this further.”
While you’re obsessing about the suspension (heh, we aren’t judging…) you’ll spot that the nearside rear wishbone has a very slight dent in the underside, almost certainly due to the careless placement of a jack. The owner has taken a good look at it and reports that it looks to be largely cosmetic as no kinking is visible from the upper side of the wishbone that would indicate a structural or dimensional issue. New wishbones and bushes are available, and are reasonably priced and easy to replace.
The remaining To Do list is small. The rear nearside brake disk has some scoring and should probably be replaced. The rear suspension Lotocones (the rubber bushes at the point where the top of the rear suspension struts engage with the chassis) have never been replaced and it is likely that they are no longer providing optimum control of the rear suspension geometry.
Please also note that the vehicle has not had the valve seat replacements necessary to allow it to run permanently on unleaded fuel therefore a lead substitute additive will be needed. The Elan, like so many performance cars, benefits from the highest possible octane fuel, e.g. BP Ultimate 102 or Esso Synergy +99.