Tag Archives: Reef Fuel Injections Services


South Africans have been dismayed by a spate of destructive fires around the country, highlighting the need for diesel-powered fire pump systems to be at the ready and in good working order.

Andrew Yorke, director at Germiston-based Reef Fuel Injection Services, says the drier season approaching in most provinces is once again raising the fire risk. Yorke notes that municipal fire services are often under-capacity, and new buildings increasingly require their own water storage tanks and pumping facilities in case of fire.

Governor repairs underway at Reef Fuel Injection Services to a six cylinder genset pump.

“The problem is that the diesel engines driving these fire pumps stand idle for long periods,” he says. “This is not good for the fuel or the engines, particularly the diesel injection systems. Now is a good time to have these checked and serviced.”

Blockages or malfunctions in the fuel injector system could mean that the engine does not start at all. Alternatively, it could mean significant underperformance of the pump and even engine damage and premature failure. 

“A fully functioning water pumping system is vital for companies to respond quickly and effectively to fires, which can save millions of Rands in damage and avoid crippling business disruption,” he says. “Servicing the injector and fuel pumps is a low cost exercise that can be carried out quickly by our qualified technicians. In fact, it should be regularly scheduled as an integral aspect of the company’s safety plan.”

In this servicing procedure, a technician checks and flushes the fuel pump and injectors, and tests the calibration. Components can then be repaired, if required. This should ideally be done every six to 12 months, while the diesel engine itself should be started and run at least once a month.

Yorke also points out the seriousness of the damage that can be inflicted on a diesel engine by running it with a faulty fuel injection system.

“Water pumps and generator sets – unlike vehicles – immediately accelerate to operating speed when they are started up,” says Yorke. “As a result, faults in the system can quickly cause considerable damage before they are detected. Such damage – which could extend to catastrophic engine failure – is much more expensive to repair than the cost of servicing the fuel injectors regularly.”

“These simple checks will help ensure that the company’s extensive investment in firefighting capacity is put to good use when the occasion demands it,” he concludes.


Komatsu owners will be pleased to know that issues with their diesel fuel injection systems do not need to cause them undue downtime. With its specialised, accredited repair and remanufacturing services, Reef Fuel Injection Services in Germiston can get these machines back in operation quickly, according to manager Warren Hauser.

“We are the only workshop in South Africa that is authorised to repair and remanufacture the injection system on Komatsu’s popular 785 dump truck, for instance,” says Hauser. “We can also fully remanufacture both the high-pressure diesel pump and the injector of the Komatsu 6D170’s engine family.”

With its comprehensive knowledge and experience of the Komatsu diesel injection range, the company ensures fast turnaround times to put machines back to work. Good parts availability means no waiting for imported componentry.

“This reduces the risk of any disruption in the supply chain, like we have recently experienced with the Covid-19 pandemic,” he says. “We have an extensive range of new and remanufactured common rail injectors in stock.”

Specialised equipment allows Reef Fuel Injection Services to conduct detailed tests and give customers accurate reports on the complete diesel fuel injection system. Further reducing downtime is the company’s field service, which can attend to fuel injection related issues in the field.

“Setting us apart is our investment and expertise in Bosch and Hartridge OEM-authorised equipment for testing and calibration,” he says. “With this technology we can generate reports on most electronic parts, and can share this data with customers.”

He highlights that high-quality repair and remanufacturing of fuel injection systems – to OEM standards – remains the most cost effective option for Komatsu customers. The real benefits, though, are the improved uptime and the reliability of the finished product.


Specialist expertise and equipment allow Reef Fuel Injection Services to accurately diagnose work-stopping faults in Caterpillar fuel injection systems quickly – getting the machines back on the road in double-quick time.

“Using advanced Cat fuel system specific equipment, we are experts in pinpointing the root cause of failure,” Warren Hauser, manager at Germiston-based Reef Fuel Injection Services, says. “This essentially ensures that we are not trying to fault-find through a process of elimination, at the customer’s expense.”

It also means that parts are not changed unnecessarily. It is not uncommon, in the case of a breakdown, for a workshop to replace the entire fuel injection system including the diesel pump, injector and common rail to resolve an issue.

“With economic conditions becoming more difficult, it is unlikely that Cat owners can afford to replace entire diesel fuel injection systems, if this is not strictly required,” says Hauser. “We use our specialised diagnostic tools to zoom in, so that if it is only the injector that requires attention, we attend to that directly.”

The company’s field services team can even attend to the machine on site at short notice, often much quicker than the OEM. Using service exchange components, downtime can be significantly reduced. Should the customer choose, the fuel injection components can be removed on site and taken back to the Reef Fuel Injection Services workshop for comprehensive testing and a detailed report. The OEM is not equipped to conduct this level of investigation.

“Our advanced facilities allow us to provide a cost-effective remanufacturing service instead of simply replacing expensive components,” Hauser says. This factor becomes even more important for customers in times of Rand volatility against the dollar, and in the face of potential disruptions to global supply chains for spare parts.

The Reef Fuel Injection Services message is clear: Cat owners can benefit considerably from correct diagnosis upfront, less downtime of equipment, and the competitive pricing that comes with quality remanufacturing. Reef Fuel Injection Services caters to the full range of Cat diesel engines.


With load shedding expected to return with South Africa’s gradual move out of a Covid-19 lockdown, standby diesel generators need to be checked – especially their diesel fuel injection systems.

“Diesel generators that have been standing idle – or which have low working hours – can often experience fuel injection problems,” says Reef Fuel Injection Services manager Warren Hauser. “This can lead to the generator not starting at that critical time when mains power goes down.”

Hauser urges genset owners to have their systems checked regularly and maintained correctly, especially when there are long periods of inactivity such as the recent lockdown.

“Faulty diesel fuel systems can also lead to more serious engine damage, even failure, when they are not running optimally while power is being drawn,” he says. “The subsequent engine repair costs – not to mention the associated business disruption – far outweigh the costs of professional maintenance.”

Hauser also highlights the danger of diesel becoming contaminated by water and dust when it stands for a long time without being used. Another risk is that the containers employed to bring diesel to the genset tanks can bring contaminants. This will undermine the performance of the fuel injection systems, which in turn affects the genset’s reliability.

For genset owners experiencing problems, Reef Fuel Injection Services offer specialised expertise to pinpoint the fault on diesel fuel injection systems, and to provide a quick and cost effective solution. With state-of-the-art workshop facilities and mobile equipment, the company remanufactures CAT diesel fuel injection systems and is an authorised service agent for all leading manufacturers of diesel fuel injection systems – including Bosch, Delphi, Denso and Stanadyne.

Reef Fuel Injections Services provides OEM-approved testing as well as quality remanufacture and calibration of all these fuel injection systems – with experience spanning a wide range of sizes of power generation units from single-cylinder engines up to large 20-cylinder units.


Reef Fuel Injection Services has been granted Essential Service status ensuring critical industries can rely on the company should they experience diesel fuel injection system issues during lockdown.

During this time, Reef Fuel Injection Services can assist with all mandatory maintenance as well as unscheduled breakdown requirements for customers operating in the distribution and transportation, mining, power generation and agricultural sectors.

Significantly, Reef Fuel Injection Services is an authorised service agent for all leading manufacturers of diesel fuel injection systems including Bosch, Delphi, Denso and Stanadyne, and as such offers OEM approved and warranted testing as well as quality remanufacture and calibration of all these systems.

An important advantage for many CAT equipment operators is that Reef Fuel Injection Services operates a fully-fledged field service team that can conduct comprehensive diagnostic testing and remanufacture and calibrations services while on a customer’s site.

Andrew Yorke, operations director at Reef Fuel Injection Services, says customers have come to rely on the quality workmanship and service rendered by the company as well as the knowledge that only genuine parts are used. “This is critical not only for the longstanding reputation of our facility but also provides customers with the assurance of the longevity of the repair itself.”

“In these uncertain times, it is important that our customer base and, for that matter, anyone else needing assistance knows that our team is available to assist them in continuing to render their critical services to the country.” 

Stringent health and safety procedures, in line with the regulations, were put in place at Reef Fuel Injection Services prior to lockdown for both employees as well as customers visiting the facility.

“Obviously we cannot stress enough the importance of placing the health and safety of our team top-of-mind, so we remind customers to visit our website and adhere to protocols that we have put in place for their safety and ours,” Yorke concludes.


By earning the coveted award of Bosch Service Centre of the Year, Reef Fuel Injection Services has been recognised for its quality workmanship and responsiveness to customers.

Beyond customer satisfaction, the award also acknowledges that authorised Bosch Service centres maintain the highest technical competence, with world class workshop diagnostics and test equipment, including the know-how to optimise its use.

Among the assessments conducted by Bosch when evaluating a service centre is an audit on the service (SQA) as well as an audit on the quality of the tooling (SQT) in place. Reef Fuel Injection Services invests significantly in maintaining its equipment and tooling, and is among the most comprehensively equipped diesel fuel injection service centres.

The workshop grading for the award is conducted every two years through monitoring by Bosch, and also assesses service delivery and fair pricing, proving that Reef Fuel Injection Services offers value for money.

“While many customers may assume a fuel injector is at fault when they experience issues with a vehicle, we go the extra mile to ensure all the problems within the system are resolved,” says Warren Hauser from Reef Fuel Injection Services. “It is heartening to get this recognition of our attention to detail from partners like Bosch.”

The award considers the level of parts availability and on-time delivery, and encourages service centres to regularly send staff for technical training on the latest Bosch technology. The attendance at a minimum number of Bosch training courses is obligatory for workshop associates, with a minimum number of training sessions required to keep staff up to date with the latest technological developments.

Reef Fuel Injection Services boasts one of the highest number of artisans attending the different Bosch fuel system repair and remanufacturing training courses over any given year. This commitment to upskilling its personnel ensures that its technical team is always at the top of its game.

“Our quality service ensures genuine Bosch parts are always used as this is critical to not only the reputation of our facility but also the longevity of the repair itself,” says Hauser. “We take a zero-tolerance approach to the use of genuine parts as well as the quality of workmanship we render.”

Reef Fuel Injection Services is an authorised service agent for all leading manufacturers of diesel fuel injection systems, including Bosch, Delphi, Denso and Stanadyne.


As diesel engine technology advances in leaps and bounds, fleet owners need to appreciate the high level of equipment and skills needed to keep their trucks running efficiently.

“The great advantage of modern diesel truck engines is the fuel cost savings they offer their owners, mainly due to significant recent developments in fuel injection systems,” says Reef Fuel Injection Services director Andrew Yorke. “Recent technological progress has in fact been focused more on the diesel injection aspects than on the engines themselves.”

He warns, however, that keeping abreast of the specialised know-how and equipment from OEMs to test, diagnose and calibrate injection systems today requires constant and considerable investment.

“Many of South Africa’s aftermarket service providers had already fallen behind global trends during the sanctions era, when we ran with one brand of engine with mechanical fuel pump technology,” says Yorke. “The rest of the world had begun pursuing the electro-mechanical route, and we were not keeping up.”

This required South African players to effectively skip much of the electro-mechanical phase of development in fuel injection and jump straight into the modern era of electronics.

“For those players who did not fully understand this transition – and who did not invest substantially in the requisite equipment and expertise – the pace and demands of change have left them behind, leading to considerable attrition in this market,” he says. “The fact is that proper testing and diagnosis now requires OEM-specific equipment, if the fuel injectors are to be restored to as‑new condition after maintenance.”

Yorke highlights a critical step – often overlooked due to the lack of the right equipment – in the final calibration and adjustment of modern fuel injector systems.

“Before the injectors will operate optimally when reinstalled, they need vital trim codes to be generated by the OEM test equipment,” he says. “These are calibration codes that are fed into the engine control unit, to allow each injector to deliver exactly the right quantities of fuel.”

Without the trim codes, the repaired vehicle will seem to run adequately, but it will not deliver optimal performance and the efficiency benefits will be lost.

“It is false economy to try and save marginally on the repair or remanufacture of diesel fuel injectors today,” says Yorke, “as the outcome will simply mean higher running costs in terms of diesel consumption.”