Get $20.00 off any order over $150.00 (exclude shipping) Enter coupon code JOY20 at checkout Gift certificates available CLICK HERE.
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!
Watch the video below to understand what this kit can do. Ensure your injection pump is thoroughly cleaned and lubricated before starting the engine after long storage.
This will give you everything you will need ( except 12-volt power and cleaning fluid ) to bench clean and test your D-jetronic fuel injectors in your own garage or workshop once they are removed from the engine.
With the required pressure tank you will be able to individually test and clean our D-jet fuel injectors. Along with a 12-volt power source, you will need I gallon of cleaning fluid as described in the instructions.
This kit will not fix all your pump problems. If the motor is worn or burnt out, this won't help. But if the lower impeller is "stuck" due to lack of use and old fuel, then this could be a simple fix. In the video below, Kent will explain what this kit can fix and why it is needed.
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 kit is designed specifically for the W108 and W109 small V8 sedans.
Kent has sourced 2 special Viton o-rings for the outer pump housing on these early djetronic Bosch electric fuel pumps. There are two orings that harden with age causing the pump to leak fuel at the outer end of the pump.
We know that many of you own multiple Mercedes, including both gas and diesel models. If you own one of Kent’s fuel injector pressure testers you no doubt will want to test all your applicable mechanical fuel injectors in both types of older engines.
With these old gas fuel injectors, sometimes you just have to "back flush" the insides to restore them to peak performance. There is no guarantee that back flush cleaning will restore every old gasoline mechanical fuel injector. Some are just plain worn out.
These early “short style” electric fuel pumps are very prone to leaking fuel because the rubber case o-ring seals harden with age. New pumps are no longer available and rebuilt are VERY expensive! If you risk buying a used one it will probably end up leaking or seeping fuel too.