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Escape

Long Term Forum Financial Supporter
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Posts posted by Escape

  1. Most electrics can handle reverse polarity, it's only when electronics are involved it becomes a problem. Like the radio. Luckily most other stuff is not permanently live, not on a simple/older car anyway. The MegaSquirt is only powered when you switch on the ignition, by then the sparks would have told you something was wrong so you would have corrected it (like you did).

    Glad it was just a reminder and no harm done, we've all been there. 😉

  2. Could it be a sensor giving a wrong signal? I remember a D2 with a similar problem, TC activating when driving off, until the error would come up. Disconnecting that one sensor made the car drivable until I could fit a new sensor.

  3. Those stats are not as reliable as they seem. A lot of registrations are by dealers etc, forced on by the manufactures, not actual sales to the public. Over here, a large leasing company has recently acquired a huge parking lot and all but admitted it will be used to store new EVs because they can't find customers to shift them.

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  4. We had some running issues with a 3.5 I rebuilt for an RRC under restoration. We couldn't get it to run consistently on all 8, getting worse when up to temperature. We first tested the injectors ourselves, by putting 12V on each one in turn. 2 were obviously bad, the others seemed a bit inconsistent. I had them tested and cleaned, along with 2 spare ones, which confirmed 2 were beyond saving but also a few others that were leaking. We got a good set of 8 back and she ran sweetly with those. That was also in an engine that had been sitting for a few years. I hope the owner can finish the restoration soon enough, before they get a chance to clog up again. He has just found a place to work on it closer to home, so we're planning to move it there by the end of the month.

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  5. A huge thanks to @elbekko for all his help and for pushing me onwards when I lost motivation! And to all of you on here thinking along or just crossing their fingers.

    In short: as playing around with the fueling settings didn't seem to make much difference (worse if any), I took a step back and listed what was different from the trial run in the other Range. Fuel pump for one, so we checked the pressure (after cobbling together a gauge that would fit). Close enough, so there was definitely pressured fuel in the rail. That only left the injectors. Rather than take off the manifold to get to them, I decided to do what I would do with an engine on carbs and spray some petrol in the intake. And that obviously did the trick.
    Still a lot of finishing up to do, but at least now we know we're getting somewhere. 🙂 I'll probably take out the injectors when I tidy up the wiring loom and get them tested/cleaned, just to be sure. But first I want to drive her up and down the street! :wub:

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  6. Just to be sure, you did have the engine running when checking the level? If not, there will more oil in the sump as it's not being pumped to the torque converter etc.

    To answer your question, yes, I have heard of overfilling causing excessive slip and potentially loss of drive. So fingers crossed it was an easy fix!

  7. Not really, but hard to tell from just a few seconds running. And I don't wont to idle any longer because of the cam. We'll see if there's a difference if we increase fueling by a noticeable amount.

  8. TPS is working, we got it calibrated, even bothered to switch the wires around to MS giving an error that the closed value was higher than the open one (though that shouldn't matter with proper calibration as far as we understand).

    I checked for air leaks, found one crankcase breather unattached and plugged the hole, but that made no difference.

    It doesn't smell rich, my guess is too lean as well, so it can't cope with anything but the smallest throttle opening. On the other hand, adding 10% to REQ_FUEL didn't seem to make a difference either. Neither did lowering it by 10%. Guess we could try +20%.

  9. I'll let @elbekko give the details about the fiddling we did, as he's (obviously) the one behind the keyboard, I'm just the greasemonkey turning the key. 😉

    Yes, I do need to run in the cam and I know this is not the way to do it. But it's only been a couple of starts of a few seconds each, so not too bad hopefully. I did try to get it to 2000rpm (though annoyingly the tach isn't working yet, so need to look at the display) and that's how we discovered she cuts out when touching the throttle. Best we got was just over 1000rpm and that was with terrible hunting. 😞 Turned off immediately of course.

  10. Some more progress, but not as much as we hoped. We double checked the fuel pump, plugged some airleaks (crank ventilation for example), adjusted the throttle slightly open and after a few tries she finally came alive. She even kept running all by herself. :i-m_so_happy:

    Unfortunately, the moment you touch the throttle, she dies. It feels like fueling rather than ignition. We played around with the cold start setting and acceleration enrichment, made sure it was open loop to take the O2 sensor out of it, but no avail. And we compared live data with @elbekko's running P38. Timing and injector pulse width are very similar, so the base settings seem to be right.

    The mystery continues, but at least we're moving in the right direction. 

    • Like 1
  11. The pump is indeed under MS control and primes as expected when the ignition is turned on, so that should be OK.

    I wasn't planning on any drastic changes, just want to check things as best as we can before continuing. There is no idle air control as of yet, so I should probably keep the throttle open just a bit. Anything on the fuel side we need to check? It's running either the map you provided me or the most recent one from Quentin's 4.6 classic. The latter should be a very good base as he is using the same Bosch injectors and fuel pump (running higher pressure).

    Hopefully good news by the end of the day!

  12. yes, it could be the fuel pump, I haven't tried jumping the relay yet while starting. It definitely primes when turning the ignition on and runs when jumpered (as a test).

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  13. After another rewire we finally seem to have the timing right: no signs of misfires and the engine came alive at last. Not running yet though, she fires and immediately dies again. Which we're hoping is just the air and fuel delivery and settings at idle. I continued with some other wiring and tidying up bits. Starting to look like a car again at last!
    She's now ready to give it a try in earnest and get the camshaft run in. Keep you fingers crossed on Sunday!

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  14. If it's not broken or showing signs of wear/ damage, I would keep what is in there. Not just for axles, but for most things. Fitting new doesn't always make it better, so I'd save the time and money for if (when) something does need replacing.

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  15. I just discovered the same thing... That's the better part of an evening head scratching because someone made a mistake in the wiring diagram in RAVE and only corrected it in one place (for another car). Ooh well, now we know and can proceed. 🙂

  16. 28 minutes ago, Blanco said:

    Crumbs, that does bring back memories, ... wouldn't mind one now as a classic runabout 😊

    Crumbs is pretty much what's left of most by now... I do admit they looked good, not sure I could put up with it as a daily. The M530 is a very nice drive, almost sporty. The Bagheera not so much. I've not had the privilege to drive a Rancho, but don't expect too much either.

  17. It was progress, definitely. Most importantly, we now know where the problem is situated. Which is half way to a solution. I'm also starting to wonder if this is why our previous attempt to get a P38 running with MS, almost 10 years ago, never succeeded. We knew (assumed) it was timing, but never figured out what could be wrong.

    I'll do the rewiring tonight, definitely have a stiff drink and maybe even try turning the key again. The day has started out pretty good already (despite taking the train), as we got a Matra M530 that hadn't run in 40 years through MOT!

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  18. @Bowie69 why did you have to post that?? My dad's 450SLC has been for sale for years, just taking up space in the Workshop as there are no serious candidates it seems. But I'm sure I can find a rusty old Disco and use that as a donor to give it a new life. 😁 Might even be a good idea to keep the OHC Merc V8 is that's quite grunty.

    Mind you, I don't need LR underpinnings to take classics off road. Not by intention (this time) I should add!

    image.thumb.jpeg.361683808dedbdf6f8c486bd5b36d717.jpeg

    The 'road' got a lot worse for the next half mile or so, and no chance to turn back so I had to push on. And lucky the Lotus managed (just). 🙂

     

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    • Haha 2
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