Kent's procedure uses the factory recommended "drip tube method" but with a "twist." He has devised a way to get accurate and consistant IP timing results while trying to get the drip tube to drip at one drip per second exactly when it should!
Search | Fuel Delivery
This kit will allow you to remove your old fuel warmer and completely bypass it with the parts and instructions you will receive in this kit.
Mercedes installed small fuel warmers on these engines using engine coolant to warm up the fuel just before it enters the injection pump. The idea is great - especially in cold climates, but in moderate and warmer climates it is probably not needed.
While working on the fuel injectors of a 240D this week, Kent finally decided he had had enough. After 20 years of fighting those fuel injector return hoses he decided he just had to come up with a tool to make the job easier. 2 hours later the tool was designed and the prototype made.
Any time you are removing and replacing your fuel injectors you will need to change the return hose and the heat shield crush washers. If you don’t, you will have leaking hoses and possible compression leaks at the injector nozzles.
MFI (mechanical fuel injection) fuel pumps are notorious for leaking fuel. Leaks are almost always due to age hardened and deformed o-rings inside the pump. Taking the pump off the car, taking it apart, cleaning it and installing new seals will almost always solve the fuel leak problems.
Kent has never seen fresh fuel hoses on all the old MFI Mercedes he has worked on over the years. They only seem to get changed when they start leaking. Leaking fuel hoses at the electric fuel pump is a fire hazard!
Leaking fuel injector pumps have become a very common problem in the 60x. engines produced from the mid 1980s to the mid 1990s. The early 60x.
Most owners do not have a big enough hex wrench to remove the fuel tank screen on those models that had the fuel tank right under the rear trunk floor. But the screen does need to be removed, inspected and cleaned due to the age of these cars.
Would you like to find out how well your old (1959 to 1972) mechancial gasoline fuel injectors are working? Now you can do it yourself at home with our custom bench mount hand pump pressure tester and cleaning kit. These are the full instructions that come FREE with the kit.
If your fuel level gauge is not reading accurately or the needle jumps around and or your car’s low fuel warning light does not comes on, it is usually a problem with the tubular sending unit in the fuel tank.
Kent uses his 1976 240D that had sat idle for 6 years to demonstrate what needs to be done to get an old fuel system cleaned out and serviced properly. This always includes installing new fuel filters and sometimes will require replacing some of the rubber hoses.
PLEASE NOTE: This tank has to ship oversize and it is very expensive to ship across the county. The shipping amount in checkout may not be accurate. You will be charged exact shipping. If you are on the east cost recommend you contact us first for shipping to your address.
This is a common occurrence as these gas engines with Bosch C.I.S. fuel injection age. Most of them are now at least 20 + years old. The problem goes something like this. You start the engine cold and it will hardly run. It runs rough and idles very low and will even quit a few times.
If you think CIS fuel injectors can just be ignored, think again. Sure, your gas engine will continue to start and run “ok”, but you may find that it is not producing the power it once did nor the fuel mileage it once delivered.
Brand new Bosch Fuel Injector as shown. This is the later style with the smaller threads. It will only fit the models listed below with CIS fuel injection. How do you know if you have CIS? If you have hard metal fuel lines going to your injectors with no wires you have CIS.
Works on all models from 1977 to 1993 with the Bosch C.I.S Fuel Injection system - see models listed below: Now you can do it yourself on the bench with this inexpensive tester- Save big $$. Ever wonder how well your old CIS fuel injectors are working?
The timing device installed in the W115, W116, W123 and early W126 with OM615, OM616, and OM617 engines from 1986 to 1985 is somewhat a mystery to many owners.
If you are new to older Mercedes diesels and have not worked on them before, this is one of the first things you want to learn. Especially if you ever run out of fuel. Without knowing how to do this you will never get the engine started again!
Fixing a Key Source of Fuel Leaks on Your Fuel Injected Late 80’s Early 90’s Engine - On Demand Video
If you smell fuel inside your engine compartment you need to find the source of the leak and fix it IMMEDIATELY. I think we have all personally seen or seen pictures of those cars with the engine burning on the side of the road. Yes, usually caused by a fuel leak close to the engine!!!
For all MBZ diesel engines 1950 to 1993. Designed by Kent Bergsma. These are built at Mercedessource to control quality and production demands. Each one is tested here in our shop before shipping.
NEW Version 3 - Improved fluid handling design - Watch the video below for reasons behind the changes. If you have been reluctant to overhaul your worn our diesel fuel injectors because the job is too difficult or too costly then think again!
Keeping your injectors clean and tuned is one of the best ways you can improve mileage in a diesel. Buy both Kents new manual Diesel Fuel Injector Cleaning and Testing Procedures and his Top Brass Custom Cleaning Tool Kit and save!
For 5 Cylinder OM 602 Non-Turbo and Turbo Engines 1986 to 1989. These nozzles fit ONLY 1986 to 1989 201 Chassis 5 CYLINDER 190D 2.5 Turbo and NON-Turbo.
FITS all 116 123 Diesel and Gasoline, and 126 chassis from 1977 to 1985. Finally a socket to remove your fuel tank screen that really works. Most correct size sockets tend to be SO BIG that they require 3/4 inch drive ratchets and extensions to use them. Who has those in their tool box??
When it comes to cleaning diesel fuel injectors, and yes they do need periodic cleaning, there is nothing like having the right tools to do the job.
Most 1986 to 1993 M103 6 cylinder CIS fuel injection delivery (FID) systems are old and tired and have not been properly maintained. These include the W201 190E 2.6, the W124 260E 300E, 300CE (up to 1989), 300TE, and the W126 300SE and 300SEL.
The original screws in these pumps get pretty nasty looking over time. When you try to clean them will a wire wheel the plating will be completely removed and the heads will rust again pretty quickly. Now you can install new original looking yellow zink plated screws and washers.
Most 1990 to 1992 6 cylinder CIS fuel injection delivery (FID) systems for the M104 engines are old and tired and have not been properly maintained. These include the W124 300CE and the R129 300SL. In recent years, Kent has yet to see one of these cars where the complete system has been redone.
This is the actual part you will receive. If you need seals and instructions to replace see related products below:
This hose assembly was used on the fuel delivery systems in the late 1970s and early 1980s. Installed on some R107 450SL and 450SLC, W116 450SE / L and 280SE, and the W123 280E and 280CE. Be sure to check your car before ordering to make certain this hose is installed.
Those old hardened and discolored plastic fuel hoses in your diesel engine compartment probably need to be replaced. When they crack and break you can dump a ton of fuel out on the road before your engine quits and leaves you stranded.
Set of 6 long zinc plated metric screws with 6 self-locking nuts. Most brackets will only require 3 so you will have extras. You may have to cut one to a shorter length for use on some assemblies.
This is a complete fuel delivery system from a 300SEL 4.5 that has been restored modified with the newer style correct Bosch fuel pump, new filter, and all new hoses included to install. Watch the video below to view the unit closely from all angles.
This is probably the only one like this available in the world. When it sells there will be no more. If you have a 450SL or 450SLC and yours is all rusty due to road salt - this is what you will need to save your sanity! Watch the video below to see the actual rebuilt before and after.
1977 to 1980 W116 R107 C107 V8 and W123 6 Cyl. Fuel Accumulator Tee Hose Rebuild Instructions - On Demand Video
In this 13-minute video instruction Kent will show you how to make your own accumulator tee hose connection either using parts from. our kit ( see below) or parts you purchase yourself. This video is included free with the purchase of our kit.
This kit will give you everything you need to fix the leaking or aged Tee hose between the fuel damper and the fuel accumulator on most 1977 to 1980 fuel delivery systems. Watch the video below to learn why this is needed.
Kent will take you over to his workbench and completely take apart a rusty and old fuel delivery system from a 1980 450SL and put it all back together again with some shiney new paint and parts supplied in his special kit for these cars. This video runs for 24 minutes.
Brand new aftermarket fuel accumulator for the 1986 to 1991 V8 engines. It is mounted near the fuel filter under the back end of the car and hardly ever gets replaced. What does it do and how do you know if it is bad.
Brand new aftermarket fuel accumulator for the 1976 to 1985 V8 engines. It is mounted near the fuel filter under the back end of the car and hardly ever gets replaced. What does it do and how do you know if it is bad. Watch the video below and Kent will explain.
In this 46 minute very detailed step-by-step video instruction, Kent will show you how to remove the fuel delivery system from your 1986 to 1991 420SEL, 300SE, 300SEL, 560SEL, 560SL, and 560SEC, take it over to your bench and take it all apart, install new pumps, filter, accumulator, and hoses, t
Many of these particular big V8 models are now becoming true collector cars and going up in value at a steady rate. ( especially the 560SEC and 560SL) Most of their fuel injection delivery (FID) systems are old and tired and have not been properly maintained.
Install this steel 10-micron filter in your fuel tank outlet hose to protect your fuel pump. Clamps provided along with a pull to plug the fuel hose temporarily to reduce fuel spills.
All 380SL owners take note. Even if you acquire a nice 380SL like Kent's Cherry you are going to need some or all of these components ( unless of course it was recently done by a competent mechanic ).
1977 to 1980 W116 R107 C107 V8 and W123 6 Cyl. Fuel Delivery Overhaul Kit with Free Video Instructions
This kit contains most of the important items you will need to restore your old fuel delivery system located under the right rear back end of the '77 to '80 W116 and R107. You will often find rotten fuel hoses, weak or failed electric fuel pump, plugged fuel filter, and broken rubber mounts.
Kent personally cleaned and painted and assembled this bracket assembly. It was a lot of work. He will sign it, but ONLY if you email and ask.
This highly detailed 24-minute DIY video instruction will show you how to do the following on your EFI R107: Inspect the rear hoses for fuel leaks, drain the fuel out of your fuel tank, take the fuel pump and filter assembly apa
Since new original style pumps are no longer made, this is the best way to finally fix your old fuel pump leaks and poor performance.
This on-demand instructional video was filmed to go with Kent's new fuel tank sending unit service kit launched in June of 2020. This is not a complete video on the subject of fuel level sending units. For the complete video see related products below.