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Richard123

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About Richard123

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  • Birthday 10/04/1965

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  • Name
    Richard
  • Car
    1994 Esprit S4

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  1. Once you bleed the brakes properly, just depressurize the system every couple weeks. The air in the system stays in the accumulator and doesn't seem to transfer down the brake lines, so depressurizing seems to fix it up pretty good.
  2. Best few dollars I spent was for the fitting to tee a pressure gauge into the oil line at the turbo. There is still that feeling of trepidation when you see the needle in the red, or the flicker of the red light as you first rev it up, but at least you know what you have. There is something to be done to solve this in 2018. of course. Buy a 2018 Lotus. They don't do it. Else, add it to the "Esprit experience".
  3. Before you start buying parts, pump it empty (40 presses), leave it for a few minutes to dissipate, then turn the key to pump it all back up again. See if you get back to 5 or 6 presses.
  4. OK, so rich mixture on all 4 cylinders. See the other thread in this section about fuel pressure regulator. Pull the vacuum line off it and see if it stinks of fuel, internal diaphragm might have blown so it might be leaking raw fuel into the manifold.
  5. Sounds like you got a bad cylinder. Pull a plug at idle and see if one isn't contributing. A dead cylinder will pass plenty of unburnt fuel.
  6. There is a very slight offset inwards. Measured from a straightedge to the bolting surface, was 1cm less on the front side than the rear side. (So 0.5cm from dead centered.) Maximum diameter of rim (outer edge) is 39cm.
  7. Found it. Mine was fastened down under a couple of hoses, not easy to see. The +tive looked good, but the ground that went to the far side of bracket seemed loose. Fished for it with a screwdriver and snugged it up. Boost gauge back to normal, owner back to happy. (It's all this good living I've been doing. Give a few bucks to a homeless guy, and see how it pays out?!?!?)
  8. So it's the thing with the hose and two red tagged wires running to it? I didn't see it when I was there, but once I saw the MAP sensor and the plastic hose running to it, I stopped looking! Thanks so much Ian, I really appreciate it. (Crossed fingers for a loose wire!)
  9. Ah, so they are separate, which explains why the car seemed unaffected. So the device I found (above RH fuel tank) is the MAP sensor. Where might one find this gauge transducer? Clearly somewhere with ease of access and likely a commonly available and inexpensive part I assume?
  10. My boost gauge never did zero, it always read a needles width up, but going down freeway yesterday it really started to act up. It would jump up to 0.5bar for no reason, then drop back. When I did dig in for some boost, it would over-read substantially. All the while the car ran fine and seemed unbothered by its antics. Am I right to assume the gauge gets it's signal from the sensor behind the carpeted right hand engine bay side cover? And that is also the sensor that gives the ECU it's information? So a quick Freescan should tell me if the sensor is failing? Since the car ran fine, is it safe to assume it's a gauge problem? If so, any ideas? The other gauges were fine. You think the gauge itself? Grounds? Anybody else have this issue?
  11. Karl, I've always gotten that milky look in the reservoir when emptying the accumulator. I was told (by posters here or another Lotus specific site) that it is normal (cannot verify). I've also had that brake pedal that pushes back, which is definitely not normal. However when I had that happen, it coincided with a pump that would run on every pedal push.
  12. It does get more familiar the more you have to work with it, unfortunately! I'm curious. How do you know when you get air in the system? The number of presses goes down? Or does the braking "feel" change? Do you bleed each caliper to get the air out, or just depressurize the accumulator?
  13. It's an odd braking system that is sometimes difficult to troubleshoot. The accumulator and the pressure switch are common problems. I haven't heard much for actual pump problems, which is surprising since in many cases the pump cycles quite frequently! How many "presses" of the brake pedal do you get before the pump turns on? If the pump runs every press, then your switch, relay or accumulator have completely failed. If it's every couple presses, it may be a weak accumulator or air in the brakes. If it's every 5 or 6+, then your hydraulic system is good. Best to test with key on but engine not started, window down and front bonnet open so you can hear the pump easily.
  14. Just to add a bit for anybody looking for possible culprits to that spring "oil burn off". The o-rings in the back of the cam tower get baked by turbo heat and often fail. Oil from there drip quite nicely onto the back part of the exhaust manifold. An easy and cheap fix worth looking into if you have the issue.
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