Kent's Factory Service Manuals collection is going on sale now. CLICK HERE.
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!
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.
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.
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.
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!
For all MBZ diesel engines 1950 to 1999. 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.
5/25/22 update: The precision nozzles included are now made for us by Wolfswerke-sachsen ( same company and same nozzle that was formerly branded as Monark). Yes!
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!
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??
In this 9-minute instructional video, Kent explains how to set up his injection pump cleaning and testing kit ( available separately ), and use it to clean out old fuel injection pumps of gum and grime, and then how to test them to make sure they are delivery fuel through every line.
This is the best way to determine if the expensive injection pump is going to work for old 4 AND 5-cylinder diesel engines that have not run in years. Watch the video below to understand what this kit can do.
Excellent quality zinc plated hose clamps as shown. These can be tighten with a straight blade screw driver or a 7mm socket or nut driver.
This can do amazing things for your new fuel hose installaton on your old Benz engine. Watch the video to learn more. Sold individually in approximately 6 inch lengths.
We modify this wrench right here in our shop. If a picture is worth a thousand words, what is a video work. Watch the following for a full explanation.
You would be amazed at how much fuel can leak out of a fuel hose when you disconnect it from your tank or engine. This is an easy way to prevent messy spills.
When “rebuilding” an old Bosch mechanical fuel injector, replacing the nozzle is usually enough get it working again at peak performance. But sometimes you will run into a fuel injector that just won't fire right nor product a correct fan spray pattern.
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.
If your fuel gauge stops working or is not reading accurately, many times it can be repaired by removing it from the fuel tank, taking it apart and giving it a good internal cleaning of the contact points, float shaft, and wires.
This is a very critical and very neglected filter located inside the fuel tank.
In this 7+ minute instructional video, you will learn how to cleanly and safely drain the fuel out of your old Benz.
This is a "must-have" kit when adjusting release "pop" pressures on older diesel mechanical fuel injectors. It is the internal spring "shim" thickness that determines the exact pressure required for the release of fuel at the tip of the injector.
If you acquire an older Mercedes diesel and want to test those large Bosch injectors with your V3 gasoline bench tester, you will need 4 things to complete the conversion: 3000 PSI gauge, our new capture bottle to hold the larger injectors, injector sealing kit, and Kent’s written manual and vid
This video is specifically for setting up and using Kent's newest version of his diesel fuel injector bench mount tester. It does not contain any information on the actual process of cleaning or rebuilding a fuel injector.
This is for number FOUR cylinder on the four and five-cylinder engines. No leaks. It may need to be straightened slightly for installation.
This is for number THREE cylinder on the four and five-cylinder engines. No leaks. It may need to be straightened slightly for installation.
This is for number TWO cylinder on the four and five-cylinder engines. No leaks. It may need to be straightened slightly for installation.
This is for the number one cylinder on the four and five-cylinder engines. No leaks. It may need to be straightened slightly for installation.
Fits the following: All 5 cylinder diesel engines from 1975 to 1985. For 300D 300TD 300CD 300SD, PDF instructions included. This is the critical inside wear part of the injector that delivers the fuel spray into the cylinder. These are direct replacement new fuel injector nozzles from Bosch.
Fits the following: All 4 cylinder diesel engines from 1968 to 1985, including 201 Chassis 190D 2.2. For 220D 240D and 190D 2.2 Engines - FREE heat shield washers - PDF download instructions included.
NOTE: Ships UPS ground only. Select ground for entire order to save in shipping costs. I am a great fan of LubroMoly products.
This is the best tool to use when installing or removing the Monark hand primer pump. PLEASE NOTE. This is 19mm and will NOT work on the Bosch hand primer pump or other style pumps (most others are 17 mm).
This video is included free with the purchase of our check valve overhaul kit. Please see related products below
This is something many owner's and mechanics miss. That little check valve on the side of the injection pump can cause a lot of starting problems on the older diesels.
Here is a wrench I should have made 15+ years ago. I can not believe how much time and frustration I would have saved over the years working on all those 100's of Mercedes diesel engines if I would have done it!
The FLOW pressure method can be used to both check and set injection pump timing. Personally, Kent likes to use this method only when checking if the I.P. needs adjustment.
The FLOW or low pressure method of checking and adjusting injection pump timing does not require a separate pressure tank. With this method you use the hand primer pump to pump up pressure in the injection pump to get fuel to flow out of the half round drip tube included in this kit.
This is a collection of SPECIAL tools Kent has put together to help you grab, twist, and pull on things in and around your Mercedes. He makes each one of these tools right here in his shop.
Kent put together the three most important products you will need to use his pressurized method of setting the critical timing on your diesel engine injection pump. This is often negelected and when corrected can lead to faster starts, better fuel economy and less engine smoke.
This one hour long on demand video is included free with the purchase of Kent's OM61x injection pump timing kit. The method he teaches uses his own kit, his custom built pressure tank, and his special IP snake wrench.
Another wrench designed by Kent Bergsma and born out of frustration. This could be the weirdest wrench anywhere in the world! While shooting a video on adjusting the injection pump timing on an older Mercedes diesel Kent ran into a big problem.
33 page digital PDF manual. Applies to all 110 115 116 123 126 201 124 140 diesels from 1961 to 1994. From my many years of working professionally on Mercedes diesels I have learned fuel injectors are the single most neglected maintenance item. I believe there are a number of reasons for this.
I have used a lot of different clamping tools over the years to prevent fluids from leaking out when removing coolant, fuel, or brake fluid hoses. Most work ok. Some are hard to use in tight places. Many do not stop every last drip from coming out of the hose.
We receive a large number of emails from customers complaining about small fuel leaks at the fuel injector housing (coming out the threads between the two halves)and how best to seal them. To fix this high pressure leak requires taking the injector apart and "lapping" the mating surfaces.
This rubber ring fits in the cap of the engine fuel filter. Does not come with most replacement filters. Should be replaced every 3rd filter change unless you seal is damaged during service.
If you work around your Mercedes much this is a great tool to have. The quality is exceptional for the price. It will reset to measure in both inches and millimeters. A Must Have for Ajusting Diesel Fuel Injectors 190D 200D 220D 240D 300D 300CD 300TD 300SD
Fits ONLY 110 and 115 chassis 200D, 220D, 240D and 300D from 1966 to 1976. This kit should give you at least a years supply of fuel filters for your diesel. You will receive 2 main fuel filters and 3 clear plastic high quality inline straight prefilters.
FITS THE FOLLOWING: All Mercedes Diesel engines from 1968 to 1999. This includes 115, 123, 116, 126, 201, 124 and early 140 chassis. Also 210 Chassis E300D to 1999, 220D 240D 300D 300TD 300CD 190D 300SD and 300SDL.
WORKS ON THE FOLLOWING All diesel 110, 115, 116, 123, 126, 201, and 124 chassis. 190D, 200D, 220D, 240D, 300D, 300CD, 300TD, 300SDL, 350SD, 350SDL, E300D.When it comes to diesel engine performance this is your best bang for the buck.