Tips & Troubles
01750000 Diesel Injector Seat Cutter Kit
This kit is for the cleaning and re-cutting of injector seat on all modern common rail diesel engines, Set of four (4) Diesel Injector Seat Cutters with centering pilot & T-handle Clean and re-cut injector seats when changing or reconditioning diesel injectors Helps to avoid blow-back due to poorly seated injectors Cutter sizes: -19mm flat cutter for Mercedes CRD -15mm flat cutter for Universal applications -19mm angled cutter for Fiat.
See demo on YOU TUBE copy and paste on your browser. http://uk.youtube.com/watch?v=FIfUK2KlDWA
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31462000 Common Rail Injector Return Flow Kit
Graduated acrylic measuring block for up to 6 cylinders
Injector adaptor sets for : Bosch / Delphi / Denso / Siemens.
Set of reduction pipes for small diameter flow back ports.
Under bonnet hanging hook.
See demo on YOU TUBE copy and paste on your browser.
http://uk.youtube.com/watch?v=vSXqcl36DHo
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Answers On Our Technical Blogs
We also have help and advise on our technical blogs. This can be found on the Blog link on the top of the page
Common Rail Injector Back Leakage Test.
Pressure loss within a common rail fuel system can often result in one or more of the following symptoms, hard or difficult starting / erratic or uneven tick over or idle / lumpy running / hesitation on acceleration / smoke on tick over or acceleration / lack of power or even a total shut down of the system. One of the main reasons for pressure loss is due to excessive fuel being returned to the fuel tank, also known as back leakage. Once the injector/s suffers from excessive back leakage, the fuel pump cannot generate enough pressure to enable the system to operate. This is more pronounced at starting or tick over due to the fact that the pressure generated by the pump is directly related to the engine’s revolutions which are lower at start and tick over. In a colder climate the engine rotates slightly slower thus lower pump pressure whilst with warmer fuel the viscosity is thinner thus allowing worn parts to leak more.
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Fuel System Cleaner
Fuel System Cleaner is an excellent cleaner for parts of the fuel system. It efficiently removes contaminations such as carbon and grease deposits, resin, gum, oxidation, etc. on parts such as valves, actuators, EGR-valves, injectors, idling motors, throttle valves, air mass meters, etc.
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Injectors Carboned, Products To Remove The Build Up Of Carbon.
This product was originaly designed to decarbon turbocharges but we have found that is the best product available to remove carbon caused by leaking injectors.
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Injectors Stuck, Products To Remove Siezed Injectors / Bolts.
Deblock Oil contains graphite. This means that not only is it more powerful, but it has a slightly lubricating effect for applications requiring lubrication such as seized injectors and bolts requiring removing.
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Injector Blow-by
Injector “blow-by” can be the cause of some of the following symptoms. Hard or difficult starting / erratic or uneven tick over or idle / lumpy running / smoke on tick over or acceleration / black tar around the injectors and a chuffing sound from the engine when running. Injector “blow-by occurs when the injector does not seal against the injector seat in the cylinder head. Often a chuffing sound is heard or black “tar” can be seen around the injectors. The engine could also experience one or more of the above symptoms. On some engine applications if this continues serious engine damage could result due to the fact that the ECU will over compensate the fuelling on the cylinder or cylinders with the seating problem causing piston washing or cylinder over fuelling. Even if the injector is removed, cleaned, a new copper washer fitted and then replaced it will not always rectify the problem. The reason for this is that the seat in the cylinder head has been eroded by the escaping combustion gases resulting in damage to the seat. The only way to reface the seat is to use a seat cutting tool and gently reface the seat in the head.
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M/benz Injector Puller
Instructions to remove Bosch Common Rail injectors fitted to Mercedes.
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Renault Injector Puller
Renault DCI 1.9 injector puller