What kind of fuel injection does a Mercedes 450SL have?
As we progress on our journey through the 1975 Mercedes-Benz 450SL, it is important to look at the D-Jetronic or D-Jet fuel injection system. With these systems aging and parts needing to be replaced, it is a good time to look at the general function of this system and the various components.
What should I replace in my Mercedes 450SL?
Now that the engine is known to truly run, it is time to fit the very old D-Jetronic system with new parts. Replaced were all rubber injection lines, fuel injectors, Mercedes Fuel damper and fuel pressure regulator. These parts are several critical components that must be functioning perfectly to deliver fuel properly.
Do you need a vacuum advance on a Mercedes 450SL?
If you choose or have had the ignition system converted to a modern electronic ignition such as the Pertronix Ignitor, you will no longer require the “switch gear” or vacuum advance. In as much, I believe it is important to keep a car as original as possible.
What to do if your Mercedes 450SL is leaking?
If any hose feels excessively hard, has hairline cracks or is leaking in anyway, it is best to change out the line. Also look at the fuel injectors. There were five out of the eight that had been leaking when it was parked some severn years ago and they re-leaked when we got the car started.
As we progress on our journey through the 1975 Mercedes-Benz 450SL, it is important to look at the D-Jetronic or D-Jet fuel injection system. With these systems aging and parts needing to be replaced, it is a good time to look at the general function of this system and the various components.
Now that the engine is known to truly run, it is time to fit the very old D-Jetronic system with new parts. Replaced were all rubber injection lines, fuel injectors, Mercedes Fuel damper and fuel pressure regulator. These parts are several critical components that must be functioning perfectly to deliver fuel properly.
If you choose or have had the ignition system converted to a modern electronic ignition such as the Pertronix Ignitor, you will no longer require the “switch gear” or vacuum advance. In as much, I believe it is important to keep a car as original as possible.
If any hose feels excessively hard, has hairline cracks or is leaking in anyway, it is best to change out the line. Also look at the fuel injectors. There were five out of the eight that had been leaking when it was parked some severn years ago and they re-leaked when we got the car started.
Do you need constant fuel pressure to run a Mercedes?
Mercedes-Benz engines need constant fuel pressure to run correctly. If your engine is giving you trouble it might be time to replace your fuel pumps. Everything you need to do the job is contained in this article.
Mercedes-Benz engines need constant fuel pressure to run correctly. If your engine is giving you trouble it might be time to replace your fuel pumps. Everything you need to do the job is contained in this article.
When did the Mercedes Benz R107 450SL come out?
The R107 450SL Convertible roadster fulfilled the luxury sports car market for most of the 1070’s. US cars produced from 1972 through 1975 used the M117.982 motor with Bosch D Jetronic fuel injection system.
Is there no fuel at injectors when bleeding fuel system?
Recently an owner of a TEF-20 wrote in thinking he must be doing something wrong, but he didn’t know what. To use the gentleman’s own words, he was “completely goosed“!
When did Bosch start using D-Jetronic fuel injection?
An overview of Bosch D-jetronic as used in Jaguar V12s from 1975 to 1980. I explain how the fuel injection system works and what the various parts do.Parts p… An overview of Bosch D-jetronic as used in Jaguar V12s from 1975 to 1980.
How much fuel does a D-Jetronic engine use?
Fuel injectors and some D-Jetronic components are colour coded. Again and again I see components from other car manufacturers or other motors and the engine runs satisfyingly in some load states. However it will not run well at all loads and engine speeds and will likely consume 20 l / 100 km.
Can a D-Jetronic fuel pump be replaced?
Also replaced was the fuel pump and filter along with all rubber fuel lines. The image shows the major fuel delivery related components of the D-Jetronic system that should be looked at, checked or replaced in the event you are having fuel delivery issues or the car has been inoperable for many years.
How many injectors are in a D-Jetronic system?
D-Jetronic is a grouped injection system, where half of the injectors are in a group that are pulsed simultaneously. In four-cylinder implementations, there are two cylinders per group. There is one injection pulse per power cycle.
How to troubleshoot D Jetronic Bosch fuel injection system?
Chapter 13 of D-Jetronic articles by Dr-DJet describes systematic fault finding (troubleshooting) and repair on your Bosch fuel injection system. Adjust valves, even if your workshop manager claims that your engine has hydraulic valve lifter Check all vacuum hoses and pipes for false air. Even D-Jetronic will fail with massive false air.
When was the last time Bosch used D Jetronic?
Bosch continued development of the system, and it was last used in the D-Jetronic form in about 1976. Variants of D-Jetronic were used by other manufacturers (Ford, Toyota, etc.) for many years, and various forms of “speed-density” injection systems similar to D-Jetronic are still in use today.
Is the distributor on a Mercedes Benz W126 needed?
The distributor on the W126, like any distributor on any car, plays an important role in the smooth and efficient running of the engine, and while the distributor itself should last the life of the car, there are several components on or in it that wear out, need servicing or replacement over time. The first of these is the distributor cap.
Is it possible to clean resource mechanical injector?
Nozzles are subject to mechanical wear and are almost impossible to clean. Resource mechanical injector is about 70.000 to 100.000 km. On Audi engines removing injectors is a pretty complicated operation (yet the MErcedes ones are somewhat simplier).
What do I need to rebuild diesel fuel injector?
Diesel injector anti-leak kit. We are not including any tools with this kit as we know some of you may already have the tools needed to work on your fuel injectors. You will need a dial caliper to measure the thickness of your shims, a torque wrench and the correct injector deep socket.
The distributor on the W126, like any distributor on any car, plays an important role in the smooth and efficient running of the engine, and while the distributor itself should last the life of the car, there are several components on or in it that wear out, need servicing or replacement over time. The first of these is the distributor cap.
Nozzles are subject to mechanical wear and are almost impossible to clean. Resource mechanical injector is about 70.000 to 100.000 km. On Audi engines removing injectors is a pretty complicated operation (yet the MErcedes ones are somewhat simplier).
What kind of fuel does a mechanical fuel injection system use?
Mechanical fuel injection works well for naturally-aspirated or forced-induction engines and handles most any type of fuel — gas, ethanol blends, methanol, and even nitro blends. Setups can range from simple single-nozzle systems costing a few hundred dollars through to systems costing tens of thousands of dollars.
How is the speed of the injector controlled?
The injector in a basic picture is an electronically controlled valve that is supplied with pressurized fuel from the fuel pump at a certain pressure level injector can be electromagnetically opened and closed at very high speed—this speed controlled by the electronic control unit using.