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Recent content by mr_hyde

  1. M

    2012 Model S Battery issues and alerts

    Make sure you do a pressure test before you reinstall the pack. Pressurize to the (very low pressure) .19psi and spray every bolt and seam with soapy water. If you get any bubbles, address that before you install. Any air escaping is a path for water to get in.
  2. M

    BMS Balancing - Current Understanding

    I believe the balancing occurs higher than 80%, but I'm not sure. I'm still looking for a definitive breakdown of when it happens - what conditions trigger it.
  3. M

    2012 Model S Battery issues and alerts

    Mine were all rock-solid (knock on wood). All of my issues were the boards themselves. It looked like the 4x redundancy in the later packs was an improvement, but now it looks like those connections are very fragile and are coming loose with impacts like collisions or even potholes. Hopefully...
  4. M

    2012 Model S Battery issues and alerts

    The 'glue' OP is describing is the conformal coating. It is basically clear acrylic paint to seal out moisture. The actual connections are the welds that are impossible without the pricey tool.
  5. M

    2012 Model S Battery issues and alerts

    I'm not sure about the best way to reattach the wire, but I've heard some people use a ring terminal soldered to the wire and a screw or rivet. Just be very careful where the back side of the screw or rivet hole goes! My best advice since you have gone this far is to check, clean and recoat...
  6. M

    DIY Tesla Drive Unit Repair

    My comment about the 'cool' coolant is specific to the coolant going into the top of the gearbox. In the original design, it is presumably very hot since it went through the rotor tube first. In the delete design, the coolant going to the top of the gearbox will be at the system's operating...
  7. M

    DIY Tesla Drive Unit Repair

    I'm going to do the delete for sure when the supply of caps come in and replace the rotor bearings at the very minimum. A tip I picked up somewhere - when you pull your speed sensor, don't use the blue shop paper towels to wipe it. Instead, use a white paper towel from the kitchen. This will...
  8. M

    DIY Tesla Drive Unit Repair

    They do and we will never see it. All we know for sure is they believe this will fail 'less bad' than the leaky seals. They just need to get them out of warranty so it is our problem and not theirs. If you put on your tinfoil hat, you see the distinct possibility they know this will melt all...
  9. M

    DIY Tesla Drive Unit Repair

    Kudos for installing the temp sensor but it would have been REALLY helpful to do some before/after comparisons. When your readings report XXX*c we still won't know what that means. Did it go up XX*c or did it go up 50%? I'm personally not willing to do the extra work to R&R the motor an extra...
  10. M

    2014 P85d High Voltage Failure

    Did you remove the modules to confirm they are dry? The water seems to wick under the shields and you can't tell if there is any moisture/water with the modules in place. It is also prudent to check for corrosion on your C26 and C27 capacitors. The lower plastic battery shield makes contact...
  11. M

    Battery Failure (and Tesla Loaner woes)

    I understand all of the thoughts, feelings and emotions you are going through. If you can find a local shop to fix the car for 1/3 what Tesla is offering, it really helps with the perspective. What part of the country are you in?
  12. M

    BMS Balancing - Current Understanding

    I agree but evrepair said the 'car balances at all SOC levels when not charging' which is not true in my understanding. I'm hoping he clarifies.
  13. M

    DIY Tesla Drive Unit Repair

    The production run of caps will be available around the end of the month. I'll put single units on ebay for DIYers and wholesale larger quantities to shops that are interested. There are four prototypes out in the world including the one in Howard's car and it is working great!
  14. M

    BMS Balancing - Current Understanding

    So the bleed resistors are going off constantly whenever the car is not charging?
  15. M

    BMS Balancing - Current Understanding

    If the bleed resistors only fire off above 80% and while charging, it seems a good approach might be to set your home charger to 85% and the lowest Amperage you can and let that 80% to 85% time take as long as it can several nights in a row. Always charging to 80% and only 80% doesn't seem to...