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    What product for long term window rubber seal protection?

    Hi, My vehicle has sunlight exposed rubber seals for all windows incl the windshield. Even though the vehicle is 35 years old, the seals still look OK without cracks but somewhat faded compared to new rubber. I am not looking for a solution for the door seals. I want to treat these window...
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    Water temperature gauge problems

    I was able to fix it. It was a loose connection on the printed circuit board where the gauge units are mounted by means of screws that also carry voltage/current.
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    Water temperature gauge problems

    Hi, I have a problem with water temperature gauge in my instrument cluster of my Toyota Hiace LH50. The car is from 1984 so I am very sure that all other Toyotas from the 1980's show the same system: The temperature sender/sensor is mounted close to the water outlet on the engine with only ONE...
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    Faulty injection pump: Uneven acceleration (with video)

    I have some new information since I got help from my dad: 1. I put the regulating valve back into the pump. It had been thoroughly cleaned. 2. I let the engine run hot by idling for 1h and kept playing with it, also driving uphill in the driveway. I figured that the hot engine would warm up the...
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    Faulty injection pump: Uneven acceleration (with video)

    There are mixed answers on the fuel return amount. I have to admit that I support the idea that the fuel return must be large, because: Lets say you are driving uphill in 1st gear even with a trailer. The fuel consumption must be enormous since the engine is working like mad. That could even...
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    Faulty injection pump: Uneven acceleration (with video)

    If I make the temporary fuel supply with transparent hoses I notice that the fuel return is very very little - close to nothing. It is as if the fuel initially supplied by the priming pump is used used up by the injectors for a minute or so and then the supply pump starts struggling keeping up...
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    Faulty injection pump: Uneven acceleration (with video)

    As stated previously (I think) there is almost no fuel coming out of the return pipe. I pulled the regulating valve out now. It is not clogged and it moves with the spring. However I noticed: It was stated somewhere that the supply pump delivers at 100 psi which is about 7 bars. So the pressure...
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    Faulty injection pump: Uneven acceleration (with video)

    I already did that a few days ago. I even used a transparent hose to see whats going on. Still the same problem. Is there a chance that the pressure regulating valve just behind the inlet banjo is causing all the problems because it is stuck open and the supply pump therefore is basically...
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    Faulty injection pump: Uneven acceleration (with video)

    I now installed a brand new genuine Toyota priming pump but to no avail. It becomes more and more apparent that: The injection pump struggles to suck in the fuel - whenever I manually prime when the engine is running, it becomes more stable and is much easier to flip the throttle (ie reach high...
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    Faulty injection pump: Uneven acceleration (with video)

    I did another test with even more transparent hoses. I need to stress this was not while driving, but just in the driveway where the fuel consumption is low. 1. Transparent hose on the fuel return and directly into a transparent container. 2. Transparent hose between the injection pump and the...
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    Faulty injection pump: Uneven acceleration (with video)

    I just completed the test you suggested: A transparent hose was fitted between the primer pump and the fuel injection pump. No air bubbles at all! Lucas
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    Faulty injection pump: Uneven acceleration (with video)

    I just made a new test: I removed the hose from the fuel pump return pipe. I fitted a transparant silicone hose and an empty jar to see whats going on: 1. When the silicone hose is fitted and the engine is off, I manually pumped the priming pump by means of the black knob. In that situation...
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    Faulty injection pump: Uneven acceleration (with video)

    Its an L engine (1984). It is a radial/rotary pump and not an inline.
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    Faulty injection pump: Uneven acceleration (with video)

    Where is that diaphragm located?
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    Faulty injection pump: Uneven acceleration (with video)

    Hi, I have some issues with my fuel injection pump. As a frame-off restoration the engine was put aside 3 years ago and just recently I fired the engine up again Here are some data: 1. Engine: L engine (2,2 liter) 2. Mileage: 85000 km - maybe 50000 miles 3. Tank has been cleaned, fresh fuel...
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    Priming/Hand pump does not suck diesel fuel

    I wanted to buy a brand new pump for my Hiace but the specific one is out of production. Instead I was able to source a similar pump used in a Toyota Hilux. Upfront I knew there would be some slight design changes and here they are: In my Hiace pump the inlet and outlet both point straight...
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    How adjust load sense proportional valve?

    Hi, I completely disassembled my brake system and will soon have to bring the car (Toyota Hiace LH50) to the inspection where the brakes have to function flawless. I adjusted the height of the arm to the settings in the manual but I know this valve can show many problems. Basically when they...
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    Car door seal: Make new again?

    Hi, My car door seals on my 35 year old Toyota Hiace are basically in a good shape since the rubber and foam is in a good condition without cracks, deterioration etc. But the foam part has been squeezed flat in some areas and does not seal up very well anymore since it does not "bounce back" to...
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    Priming/Hand pump does not suck diesel fuel

    According to both the factory service manual and the Haynes manual none of them state that the filter should be filled with fuel before screwing it on.
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    Priming/Hand pump does not suck diesel fuel

    I also believe that if you fill the fuel filter, then the injection pump should be able to do the rest of the job without having the starter motor dying from excessive cranking. I just want the added safety with a functional hand pump for emergencies. I will look into buying an aftermarket pump...
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