Search results

  1. C

    Engine rebuild woes

    Gave the fuel pump a constant feed and the engine still dies a couple of seconds after starting so it's not that the fuel pump is cutting out.
  2. C

    Engine rebuild woes

    Well it wasn't the pump or filter. Replaced both. New pump sounds a lot stronger so not a waste of money at least. I'm still waiting on the pressure tester to arrive. I've read online that some classic EFI cars have two fuel pump relays, one for starting and one for when the engine is running...
  3. C

    Engine rebuild woes

    Update 2. Think I lead myself up the garden path. Spent all day checking each D-Jet component, sensor and wire to and from the ECU. All ok. Then tested the injectors by feeling them instead of using a multi-meter, and while it cranks they are all activating. With everything plugged in except...
  4. C

    Engine rebuild woes

    Update. I tested injector number one. The injector has continuity and clicks when probed. It has a two pin connector. One pin is a brown wire and has a good earth, the other pin is a green wire and is not getting voltage when cranking. I also tested the cold start injector. This injector also...
  5. C

    Engine rebuild woes

    I think you're on to something with the fuel system. The fact that I could help it run a bit longer with carb cleaner makes me think it's fuel starvation. I'm happy with the rest of the engine because of the rebuild, I've also replaced every hose on the vehicle with silicon or braided steel and...
  6. C

    Engine rebuild woes

    I stupidly tested the fuel lines and rail for leaks with the 1 and a half year old fuel. I've drained the tank and put super in since then but there must have been at least some stale fuel in the lines. I spent 2 hours last night repeatedly starting the car to try to get to the good fuel. It...
  7. C

    Engine rebuild woes

    Hi guys, I've just finnished a year and a half long engine rebuild of my 1975 280ce (W114). Engine is the M110.981 with Bosch D-jetronic. When I turn the key the engine fires up then dies about 3 seconds later. With the throttle wide open it'll run for about 5 to 8 seconds. If you immediately...
  8. C

    Ignition coil and ballast

    I see. So it looks like getting the 123 dizzy is the way to go. I can run a couple of discrete wires and leave the transistor box and resistors in place, so it looks standard to the casual observer (I show the car a lot). I shall order one up. Also means I can keep the "hot spark" red coil...
  9. C

    Ignition coil and ballast

    I've been looking at getting an electronic dizzy from 123ignitions for a while now so I think it's about time I went for it. I was hoping to keep the rest of the crazy old transistorized ignition system as it is one of the quirky interesting things about the model. The wiring diagram seems quite...
  10. C

    Ignition coil and ballast

    Yeah that's right it's a big metal box on the near side inner wing.
  11. C

    Ignition coil and ballast

    Yeah I left the probes on for a good 30 seconds to let the readout settle. Ok I'll temporarily wire it up so that it is using a single 0.4 resistor and see how it is. If that works I'll get two 0.2 resistors to keep the original wiring intact. Thanks for the help man.
  12. C

    Ignition coil and ballast

    Right I've measured the coil. I'll say it as I read it so as not to confuse the results. The primary resistance with the multi-meter switched to the 200 setting is 1.5 and the secondary resistance with the multi-meter switched to the 20k setting is 13.95
  13. C

    Ignition coil and ballast

    Thanks for the response guys. First thing I'll do is measure the coils primary resistance and go from there. Hopefully I'm just using the wrong Ballast resistors. I've never changed the condenser but I don't think that would cause such a severe misfire. All the wiring is in very good...
  14. C

    Ignition coil and ballast

    Fitted the Bosch red coil and the two 0.9 ohm resistors. The car barely started and ran terribly. I had about 4v at the ignition coil. I kept the red coil on but swapped the 0.4 ohm resistors back in. That gave me about 8.5 volts at the coil. Car ran better but misfires badly when set to...
  15. C

    Ignition coil and ballast

    Thanks man. I'll order up the resistors and do some thorough testing when I fit them.
  16. C

    Ignition coil and ballast

    Had a look today. They are definitely connected in series. I have 12v in to the first resistor and 8v coming out, then 8v in to the next resistor and 4v out, and finally 4v at the coil. The Bosch red coil turned up today and definitely states that it requires 1.8 ohms of external resistance...
  17. C

    Ignition coil and ballast

    Makes sense to me. I'll have a look tomorrow. Cheers buddy.
  18. C

    Ignition coil and ballast

    After three years of ownership I think I've finally got to the bottom of why I keep having to change my dizzy cap, rotor arm and points every year. When looking into ignition coil upgrades I realised that my w114 280CE has been fitted with a Bosch blue coil. The blue coil is a 12v coil with an...
  19. C

    w216 whinning noise and window inoperative

    Hi guys, I've got a w216 CL500. It's got a loud whining noise from the font of the engine, the pitch changes with engine revs. Using a stethoscope it seems loudest on the PAS pump casing. Are PAS pumps common on these? Also the drivers side rear window is inoperative on both window switches...
  20. C

    Fuel pressure

    Hi guys. Anyone know what the fuel pressure should be for an M110.981 in the 280CE (w114)? I would also like to know the recommended idle speed and how to adjust it. If anyone knows? Thanks
Back
Top Bottom