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You should change this crush washer every time you change your engine oil. Good to have some spares on hand.
Good condition as shown.
When you are resealing or rebuilding, or even just working on the B1 piston, you need to check the release pressure. This is done by measuring the distance the piston has to travel before the brake band clamps onto the K2 drum. This should NOT be neglected.
PLEASE NOTE: As stated earlier, Kent does not cover the overhaul of the valve body in this video series. That could be another long series all by itself. He will show you how to make the K1 accumulator upgrade.
In this detailed step-by-step 26-minute video instruction, Kent will show you how to correctly install the B1 and B2 piston assemblies, check them for proper operation, and measure the required "free-play." He will also cover other items you will need to install on
Now, for the part you have been waiting for —and perhaps the most critical. If you forget to install even a single small needle bearing or a couple of thin washers, you could encounter some serious problems.
There are several important seals and O-rings that need to be replaced before proceeding with reassembly. In this 26-minute video, Kent will go down both the right and left sides of the case and demonstrate each one. 72234CLASS
In this 19-minute session, Kent will remove a rear oil pump from an early 722.3, disassemble it, and demonstrate some of the challenges associated with resealing it. 72234CLASS
In part three of his 722.3 video class, Kent will give you his recommendations of some tools and supplies you may need when you go to tackle this job yourself. He will also give you recommendations on additional manuals you should download from the internet. The video is 21 minutes in length.
This is a comprehensive video (30 minutes long) that provides an in-depth explanation of testing and adjusting the modulation pressure in the 722.3 and 722.4 transmissions.
Out of years of frustration trying to adjust the modulator during a test drive, Kent came up with a better and faster way to make adjustments by just "reaching" under the car. This little device replaces the plastic cap during testing and adjustment.
Kent will show you the procedure (along with troubleshooting and testing tips) with a 722.3 Transmission on the bench.
In this 13-minute session, Kent will open up the planetary gear assembly with the one-way clutch and show you how to put in the new seals. This one is a little bit tricky. You have to be careful not to knock the clutch assembly apart. It also takes some effort to get it all back together.
Kent will walk you through the steps to remove the drive shaft SAVELY. Replace the center bearing and carrier on the bench / vise. And finally, replacing the drive shaft correctly back into the car. This applies to the R107, W116, W126 and W124 chassis. The example here if from a W124 300E
I have been discovering this is one of those maintenance areas that suffers from severe neglect. Failure of the rubber support or center drive shaft bearing can cause all types of improperly diagnosed vibration problems - some commonly change with vehicle speed.
In this detailed step-by-step 20-minute video instruction, Kent will take this unit apart on the bench and demonstrate how to install all new O-rings and seals. 72234CLASS
PLEASE READ CAREFULLY BEFORE ORDERING!
PLEASE ORDER THE UPGRADED KIT BELOW for your 1981 to 1985 turbo diesel Mercedes.
This is an improved factory upgrade for the older 722.3 transmission valve body up through 1990. Later models were revised and this upgrade is not required. The accumulator parts you will install are Genuine Mercedes.
In Part 7 of this transmission rebuild training class, Kent will prep the drums for reassembly with the new seals. Installation of the piston in the K1 drum can be particularly challenging.
These are probably the most important internal seals that you need to replace. Pressure loss in the K1 and K2 is probably the primary reason for delayed shifts and flares between shifts. This is the first part in resealing these important brake drums.
In Part 2 of this training series, Kent will show you what you will want to inspect before you begin ordering parts for a transmission overhaul. In most cases, you will only need gaskets, seals, and clutches, but you want to make sure. 72234CLASS
In this first class lesson, Kent will take apart a non-shifting transmission that he removed from a 1987 300E. The video is 23 minutes long, and you will get to see how everything comes off and out of the transmission case to leave you in awe of what lies inside.
These are original. Bolt heads and threads are in good condition. You can see from the picture that you will want to paint the heads silver before installing if you want them to be pretty.
Green top modulators are no longer available NLA. It is difficult even to find good used ones. Hard to believe we still have one. Kent found it hidden away in the shop the other day and fully tested it. The long pin is included and it has a good solft black rubber cap.
Three seals in each drum need to be replaced. Only the bottom "hidden" drum seals in Viton are included.
This will work for almost all 4-speed automatics from 1981 to 1995. This transmission overhaul tool set is custom-modified here in our shop at MercedesSource. We make it to order, and it may take a few days to ship. It contains five tools.
VERY limited stock. These are the exact fuses you will receive.
This can be installed in your W116 W126 W201 W124 diesel in 60 to 90 minutes. You will use the video instructions for installing it in a W123 (included), then you will make location modifications to fit your specific chassis.
In this detailed 30-minute instructional video, Kent will walk you through the process step-by-step of how to install the circuit boss and associated wiring to be able to power your auxiliary boost fuel pump and your fuel boost heater when completing your STC 100 conversion.
In this xx-minute instructional video, Kent will show you how to install his pre-fabricated, ready-to-install fuel boost pump kit for the W123 diesel Mercedes.
STC100 SVO conversion.
The B1 piston assembly is not easy to remove and then reinstall. Because of the length of the two big springs behind the cover, it takes a tool that has a lengthy throw.
We modified this slide hammer puller set in our shop so it will work in removing two key components in the 722.3 and 722.4 automatic transmissions. Getting the B2 piston and sleeve out of the case can be a real bear without this tool. With it, it comes out quickly and easily.
You will need a 12-point DEEP socket. That is the only thing that will work. Most impact sockets are six-sided. The best way to remove this nut is with a big impact wrench with the transmission locked in park. So you will need a quality heavy-duty socket. This one is made in the U.S.A.
Take a very close look at the picture. These are all the gaskets and seals you will need to replace if you open up your 722.3 transmission that was produced from 1981 to 1990 for all 6 and 8 cylinder passenger cars that had a displacement of 3.0 liters or more.
This will work on the 722.3 transmission BUT NOT the 722.4 smaller transmission found in some 1985 to 1995 models. The piston diameters are different. Also they made some modifications to beef up the 722.3 transmission for the Big V8 in the W140 chassis.
These are the additional components required to run your old Mercedes diesel on dual tanks (DTC) when using Kent's conversion kits or methods.
Fits 300D, 300TD, 300CD and 300SD from 1981 to 1985. Hard now to find good ones. This is the only one we have. This is the actual part you will receive.
HUse this wiring adapter Kent designed to connect to one of the fuse posts in your fuse box to give you a "keyed" on-and-off power source for an electrical component you wish to install. The video below will give you more details.
This WUR has not been tested. Good cosmetic condition. Good for parts or rebuild. Recommend you purchase a rebuild kit online. No instructions included, but can be found online. How important is this? Watch the video below.
This WUR has been opened up and inspected internally. It has not been tested. There may be some hardware missing, so you would need your WUR to complete an overhaul. No instructions included, but can be found online. How important is this?
This is an untested original sealed SINGLE vacuum WUR with a rebuild kit included. No instructions included, but can be found online. How important is this? Watch the video below.
When it is time to change the rear end fluid, why not get rid of your old rusty drain plug(s) and replace one or both with stainless steel plugs?
This only applies to Mercedessource conversion kits installed or being installed on the W116 300SD, all W123 diesels, and the 1981 to 1985 W126 300SD. In this xx-minute instructional video, Kent explains the hose routing you will have to change, the extra hoses you will have to add, and the fuel
In this 15-minute on-demand video, Kent will explain how to use his injection pump de-gunking kits to clean out an old pump and to check the flow rate between each delivery valve. Watch the YouTube short video below to get an overview of these kits.
This is part 2 of Kent's two-part series on adding and rerouting fuel hoses to allow your 1977 to 1985 to run on straight vegetable oil (SVO) from the factory fuel tank (STC). kentssvokits
This is part 1 of Kent's two-part series on adding and rerouting fuel hoses to allow your 1977 to 1985 to run on straight vegetable oil (SVO) from the factory fuel tank (STC). kentssvokits
If you are a diesel enthusiast, these are a must-have for your collection. These have become rare and hard to find in this condition. Not perfect, but above average. These will teach you the basics!