John Deere Reman

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Remanufacturing Defined
Frequently Asked Questions
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Frequently Asked Questions

What is the difference between a rebuilt engine and one that has been "remanufactured"?

There are many levels of rebuilding an engine or related component, but basically they all follow the same method. In a rebuild situation, the product is normally disassembled only to the point of the perceived failure. It is then rebuilt, reusing some parts and replacing others with new ones. Generally, parts that are reused are cleaned and visually inspected before they are reinstalled.

Remanufacturing is a much more thorough process. The first difference is that the engine or component is completely disassembled. Each piece part is thoroughly cleaned by either a bake or chemical cleaning process. All major engine parts (cylinder heads, blocks, and crankshafts) are inspected for cracks or damage using a Magna-Glo process. The part is then dimensionally compared against the original John Deere specifications for that part. Any part not meeting original factory specifications is either scrapped/recycled or brought back into conformance with spec using a John Deere-approved remanufacturing process. Only after the parts intended for re-use have passed this testing and verification process are they released for use in assembly.

For each remanufactured engine, John Deere Reman replaces wear parts, such as pistons, liners, bushing, bearings, gaskets and o-rings, are replaced 100% of the time with new John Deere parts.

How are John Deere Reman parts different from other "remanufactured" parts?

The main differences relate to the length to which John Deere Reman goes to ensure quality:

  • Components are remanufactured using 100% genuine John Deere parts. There are no aftermarket or "might-fit" parts used.
  • Components are produced using the most up-to-date John Deere specifications, including any updates and upgrades that have been incorporated into the design since a part was originally released. No competitor has the availability of this confidential information, and most rely on "reverse engineering" which cannot ensure original or updated specifications are used.
  • The remanufacturing processes utilized are approved by John Deere, and monitored and updated to produce the highest quality components available.
  • John Deere Reman products are produced in a John Deere factory by trained, skilled employees who are dedicated strictly to producing John Deere product and delivering the quality you expect from a product that carries the John Deere name.

What are some of the unique processes used at the factory that are not commonly used elsewhere?

  • Every 400 Series crankshaft (6404 and 6466 engines) is shot-peened to remove stress risers after grinding. This process is required by John Deere and can be found in the engine tech manuals. Very few local machine shops have the capability to perform this critical process.
  • All blocks are line honed or line bored to insure proper shaft to head geometry.

Why are John Deere Reman engines called "application specific"?

Every John Deere Reman engine model is "application specific". This means the engine will be built specifically for the vehicle for which it is ordered. It will have the correct oil pan, correct water pump, rocker arm cover, etc. You will not have to "switch out"; parts that do not fit the application from the core engine. Each individual configuration was developed for John Deere dealers as a means of reducing the labor required to replace an engine in order to get the machine back in operation as quickly as possible.

What is the difference between "outright" price and "exchange" value?

Remanufactured components are generally sold at an "outright" price. This price consists of two values: the core deposit value, and the "exchange" value. In general, outright less core value equals exchange. Because cores can have different value depending on their condition, your final exchange price may be different than Outright less the core deposit. Core valuation criteria are designed to be simple to estimate, enabling your dealer to confidently quote the final exchange price going into a repair.

How is a core's value determined?

Core evaluation is a simple, easy to understand visual process, and does not require any disassembly. The criteria for core return is available on the core return paperwork or product bulletins. The factory verifies the core credit upon return. If factory verification is different from your dealer's inspection, your dealer will be immediately notified.

Does a John Deere Reman engine require "break-in"?

Yes, a John Deere Reman engine should be treated as any other new engine. Break-in oil should be used. Refer to the appropriate technical manual for the proper break-in requirements and adjustments required during and after break-in.

Will the cylinder head require a re-torque procedure?

No. John Deere Reman engines are produced using either angle torque or torque-to-yield head bolts. Neither of these requires a re-torque procedure.

My question was not answered here. Where do I get an answer?

Please contact your local dealer if your question hasn't been answered.




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