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  1. luthj

    MB 1120 Coming to America! Purchase, Build and Now Travel!

    A surface mount probe on the pan would probably work fine. I have seen dipstick replacement probes, but not as clean to use. A oil temp sensor in the oil gallery before the cooler could work as well. Some folks like to view the oil temp after the cooler, but that will mask high oil temps if...
  2. luthj

    MB 1120 Coming to America! Purchase, Build and Now Travel!

    I would say 670C for a minute, 650 for several minutes, and 620 sustained. Have you considered an oil sump temperature gauge? Since the pistons receive a lot of cooling from the oil, high engine stress often shows up quicker in the oil. Sump Oil temps 40C above coolant wouldn't be unusual...
  3. luthj

    MB 1120 Coming to America! Purchase, Build and Now Travel!

    Your not bringing back a 6 speed transmission? :ROFLMAO:
  4. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    I don't want to break stuff, so the 2.7/1 low range is fine for me. With the automatic I get extra slip when crawling anyways. Besides, having a top speed of 15mph in low range would make it unusable for much of my driving.
  5. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    It was a standard rebuilt. The gold standard would be direct from MB, but it's pricey. I bought a DACCO brand. If you have a local custom builder, a T1N TC with the latter ncv3 hub/clutch is better.
  6. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Torque converter? It was a Rock Auto unit, I can look up the brand if you like. If it's the transfer case your after, I went junkyard hopping via car-part.com
  7. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    Yeah, not much helps on ice besides chains or studs. I have seen 4x4s spinning all 4 wheels on flat icy parking lots.
  8. luthj

    Building a Micro-Split AC System

    1535BTU/450W is just enough for two people in a curtained bed area. Assuming reasonable insulation. Depending on the blower head pressure, you may consider just routing the air under a blanket (or cooling shroud/blanket like hospitals use). That would make it feasible for sleeping...
  9. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    Another tip on the cell service. If you didn't already know, its common for towers to shunt you to a frequency which results in poorer throughput. In remote areas channel 13 (around 700mhz) often has the best throughput, especially when you have trees or poor line of sight. In more crowded...
  10. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    I ended up with a pivot mount and a thumbscrew. What is the gain on your antenna? I have found the key to reliable service is to have two different carriers, so you have a backup in areas of poor coverage. At least until starlink allows mobile intsalls!
  11. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    If you need to carry a jump pack, there are capacity based ones which are pretty reliable. They require charging from a battery, even a mostly discharged one will do it, though it could take 20 minutes. Then you get a single crank. They should work fine even when cold.
  12. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    That will do it... Good thing that didn't ground somewhere.
  13. luthj

    Ski Bum Truck V2.0, F450 Rough Road RV

    If you want to heat your batteries, I suggest insulation them. 1/2" foam is the minimum I think. Otherwise that 65W of heat will get lost to the atmosphere quickly. Another option is a fiber blanket. Thinsulate or similar works fine. Just don't put anything flammable within about 2" of the...
  14. luthj

    Building a Micro-Split AC System

    I modified the unit recently. Swapped to about 110" of 0.052 capillary tube, and changed the fan wiring. After a recharge the unit leaked out after a few days. I spent a long time trying to find a leak, and best I could do was a failed valve core, and a cap that had lost its O ring. Since...
  15. luthj

    Rigid HVAC Micro DC AirCon

    Not necessarily true in a vehicle. Solar gain and dehumidification of air intrusion play a large role. In cold weather air leakage and cold air from exposed sheetmetal pools on the floor, where it doesn't affect comfort as much. In how weather it pools on the ceiling, which significantly...
  16. luthj

    Rigid HVAC Micro DC AirCon

    Its really hard to get a good load calculations for a van/vehicle. Things like air exchange due to body vents or the cab AC system, thermal conduction through the body, and solar gain are tough to estimate. There is a good reason that even well insulated 5th wheel trailers need 30k+ BTUs in...
  17. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Another 5k miles, still rolling along. Going to have another go at refining the alignment at the next maintenance stopover in July. The aftermarket rack has a bit of play at center I want to tighten up, and maybe replace the sway bar bushings, as the center ones are getting a bit loose. I...
  18. luthj

    Fridge Controller for Danfoss/SECOP powered fridges/freezers

    I haven't heard of that product, but I don't follow the marine stuff closely. It depends on the model, but without some insulation on the freezer tray, the fridge and freezer temperatures are much more closely coupled. This creates the situation where keeping the freezer nice and cold can...
  19. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Front is 4,100, rear is 5,100. Donor limits are 4400/5350 respectively.
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