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Diesel Pumps And Injectors, Old And New
Central Fuel Injection Service (CFIS) Company has a big advantage in servicing its diesel engine customers, notes Erik Schroeter. “My dad saw the value in not throwing anything out.”
The 56-year-old company has not only the expertise and the parts but also the tools to service diesels old and new. In a 2013 article (Vol. 37, No. 3) Schroeter told FARM SHOW that the company had the largest supply of injector pumps and nozzle cores in the world, all inventoried by name and serial number. That hasn’t changed.
As a result, the company’s reputation has grown. It increasingly attracts individual customers fixing older tractors, but also other diesel repair shops in the U.S and internationally.
“A lot of other shops don’t have the resources to work on older engines,” Schroeter explains. “They can work on common rail and modern-day diesels, but only see an old-style, cast-iron pump made in the 1940’s or 1950’s by the OEM once every 10 years. What may be a 2-hr. job for us turns into 40 hrs. for them. It’s more cost-effective for them to send it to us. We work on pumps like those for shops around the world.”
That’s not to say CFIS doesn’t work on newer pumps too. They are certified to work on virtually all major brands of injection pumps, nozzles and turbos.
Regardless of age or brand, CFIS follows the same template. “We tear down the injectors and the injector pump, clean it up and replace needed parts,” says Schroeter. “Then we put it on the stand and make sure it’s producing the right amount of fuel, at the right time, at the throttle setting and that the governor is working correctly to keep engine rpm’s where the operator wants it.”
It’s the availability of the appropriate test stand that can determine whether a pump can be worked on or must be sent to CFIS. Not only does the company have old ports, cores and other parts, but they also have test stands for old equipment.
“We accumulated a lot of test stand setups over the years,” says Schroeter. “It just makes sense for other shops to send their more challenging work to us.”
If parts aren’t easily available, CFIS finds ways to source them. In some cases, they will have the parts rebuilt.
“We may have to order 5 years worth of parts,” says Schroeter. “You have to think outside the box. Increasingly, it’s harder to get anything.”
Schroeter is already planning for the next change in the industry. He suspects that as the supply chain moves forward, suppliers are going to consolidate and focus more than ever on newer models.
“As companies like Bosch run into constraints on components, they will focus on products built in the past 15 years, not the past 50,” predicts Schroeter. “We are working diligently to find alternative suppliers who can make these older parts. Then we will warehouse them, so we have them when a customer needs one.”
Another change that Schroeter notes is underway is the tendency for OEMs to simply replace, not repair a pump. “Deere may have a pump on the shelf when a pump under warranty comes in, and they will just replace it,” he says. “They may tell the dealer to send in the core, but they will just destroy it.”
Had that been the case when Schroeter’s father started CFIS in 1964, he couldn’t have saved the parts that are now keeping old diesels running. CFIS is doing what it can to ensure old diesels continue to run.
Contact: FARM SHOW Followup, Erik Schroeter, Central Fuel Injection Service Company, 2403 Murray Rd., Estherville, Iowa 51334 (ph 712-362-4200 or 800-548-9464; service@centralfuel.com; www.centralfuelinjectionservice.com).

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2022 - Volume #46, Issue #6