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  1. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Now that it is winter here in Canada, and snow/ice is building up on the roof, it has exposed a very serious leakage issue. I stripped out all of the interior panels, and found that a lot of the original insulation has soaked up water (and, in some cases, was frozen solid). I was intending to...
  2. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Just watched the IRA shootout scene at the beginning of "The Devil's Own," and there are three clips where a Series 2a/3 (can't tell which) Marshall Ambulance is shown, alongside Defenders and another Series LWB. Not seen them used in any other movie so far.
  3. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    The ambulance came with 2 heaters, but both blower motors were shot, and there's no demister/defroster plumbing. The cabin heater matrix is between the two front seats rather than in the engine bay or on the firewall under the dash. The blower motors pull air from ports above the cab, through...
  4. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    New front prop shaft is in, and with this warm weather we're having I also had the opportunity to install a Canadian Polar Pad 250w oil pan heater to make winter starting a little easier. Very easy to install and it warms up so fast. With the intention of using it for both camping and general...
  5. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Spent the weekend removing the ambulance "bits" from the patient compartment, so I can have a bit of a blank slate to start planning out what to do next in the space. I'd like to have a comfortable camping set-up, but also be able to use the space for carrying cargo (lumber, supplies, etc.)...
  6. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Cabin heater blowers are wired with a new 3-position switch and relays - Off, front cabin heater, patient compartment heater. Unfortunally, the cabin heater motor is shot so a new one is on its way. Still working out how to get heated air to the windshield for demisting/defrosting. Also...
  7. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    After a marathon weekend of work, making use of some decent weather before the Cold November Rain, I managed to get a significant amount of upgrades done in the engine bay and behind dash panels: - 12si 96a alternator to replace my old, worn-out dynamo - Upgraded the alternator/battery/starter...
  8. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Alternator conversion is coming along. The oil cooler pipe ended up not causing any issues - a little gentle bending has it routed below the new alternator bracket, and slight longer standoff keeps it from rubbing. The heater hoses will definitely need to be modified but there's lots of room to...
  9. Hexonxonx

    1986 Ex-Military 110 - EV conversion

    Reminds me of when I worked with the team to develop the LS engine conversion kit for 944's. Not only did this include the torque tube adapter plate, but also steering linkage, headers, and big brake kit. Would have been a lot easier had 3D printing been around at the time to assist with...
  10. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    I installed a pair of side signal lights for a bit of safety. Some military 2a's have a rubber bumper on the wings above the front wheels, presumably to stop the doors slamming the sheetmetal on full swing. I found some orange LED "penny" lights that fit the holes perfectly. They're small, but I...
  11. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    I've been working on the plan to replace my original dynamo/generator with a Delco-style 12si 94 amp alternator and using the mounting kit from Pangolin. I'm certainly no electrical expert, so I'm being very careful to map out the new wiring, while making some improvements as I go along. The...
  12. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Not above a little vanity... There are some things that are done, not necessarily because they are functional, but because they look good. Though a tow rope is useful, a 1 1/2" manila-esque rope wrapped around the front bumper is not really the most practical of solutions, but to my eyes it...
  13. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Tappets weren't too far off but adjusted and re-checked them anyways. Compression using starter when engine was warm (not hot) came out as 122 - 125 - 127 - 120. A bit low overall, but low variation across the cylinders which is good. These figures might move up a bit if I ran the engine a bit...
  14. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Well, it turns out the fuel gauge is not reading accurately after all - 3/4 is full, and 1/4 is empty! At least it's reading consistently. Regardless, I've ordered a pair of 2" fuel gauges that will be mounted in an auxiliary panel so I can see the level of both tanks. I rebuilt the fuel tank...
  15. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Another success for the books. After un-seizing the RH fuel tank sender arm, re-checking the wiring, and cleaning up the fuel gauge, I've got a reasonably accurate level showing on the gauge. That must also mean the voltage stabilizer is working within normal range, which is good, but it means...
  16. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    No markings - it's just solid black plastic. After all my troubleshooting, it looks like an electrical issue as the gauge is reading high but actual temps appear to be fine.
  17. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Managed to a get a couple of hours of work done before today's thunderstorm/tornado/hail storm rolls through. I don't have a garage or otherwise covered workspace, so I'm at the mercy of mother nature for some work. One of the fun things about this vehicle is learning about/working on the...
  18. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Some good news at least... Took Winnie for a spirited drive out in the country - had the nerve to actually touched 80kph. Vehicle feels very steady and straight at this speed, though the engine is certainly ticking over in 4th gear (no overdrive). Good news is that after a 5km stretch at that...
  19. Hexonxonx

    1970 SIIa Ex mod Marshall Ambulance

    Temperature observations, fixed a potential issue, and ran across a new one... After a 5 minute idle, here are my temperatures (all in *C): Radiator hoses TOP - 58.4 BOTTOM - 27.5 Radiator upper tank LH - 44 RH - 54 Valve cover FRONT - 39.3 BACK - 39.4 Cylinder head FRONT - 95.1 BACK -...
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