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  1. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Did some testing with the express springs. They are a bit longer, but the locating pin and dimensions are close enough that they will fit. The express springs are about 2x the weight of the MB springs, they are about 1" longer overall, and about 0.2" narrower. Unfortunately they...
  2. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Diff bearings are in. Should get the R&P tomorrow. I heated the bearings to 400F, and cooled the diff in the freezer for 3 hours. It took about 10 taps with my hammer and a big socket. Make sure to use an EP grease on the diff OD, as it makes it much easier if you don't get it all that way...
  3. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Got the canbus bridge program working right. I accidentally transposed the bit positions (0-7), I was using bit 6 instead of bit 1. So it was corrupting the shifter position. Going through the canbus frames, it should be possible to implement a "manual" mode. In this mode the trans can be...
  4. luthj

    Benefit to charging AGM battery to full capacity?

    If the battery isn't being deeply cycled often, then the alternator can get it back to full on most vehicles. (13.8V or higher). So you are probably okay with your current setup. If you start running it down a bunch with a fridge etc, then consider a shore power charger to get it full after a...
  5. luthj

    Overland Sprinter Build

    Here is the filler panels I ordered. 0.08" aluminum. I will paint them to match the body, and bond them in with window adhesive. I am replacing both midship windows, and one rear door.
  6. luthj

    Jack stands, jacks

    I feel your pain, I need 25" to get the wheels off the ground at the factory jack points. I have been using this combo jack/stand. It works well, and I carry a 6" plywood base for it. On soft ground even a 8x8" base can sink in pretty quick...
  7. luthj

    Benefit to charging AGM battery to full capacity?

    Lead batteries need higher voltage when cold, but they actually charge slower, and deliver less power when cold. Typical alternator voltages are not high enough to fully charge a lead acid battery. Most require ~14.4V. This plus a lot of time. A full 100% charge for a deeply cycled battery...
  8. luthj

    Overland Sprinter Build

    Always. ;) You could bond an aluminum plate over your existing cutouts. Assuming there isn't any structure in the way. I have too many irons in the fire. Windows, axle swap, paint fixes. Good thing I haven't ordered the batteries yet...
  9. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Yeah, sorry for the confusion. They don't look like they will fit in the model, but they just barely clear the brake line assembled.
  10. luthj

    Overland Sprinter Build

    First in a string up upgrades. Tern windows have arrived! I went to pickup the filler panels, but they had cut the wrong file, so I need to wait a few more days. I also just noticed the Maxxtrax interfere with the rear window! Oops... I think there is enough room to rework the rack to move...
  11. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Mmmm rubber. IMG_20200422_174943018 I ground down the used bearings to make a setup set. IMG_20200423_123007440 Axle is about ready for paint. Need to get some rust remover for the compound curves my grinder won't reach. Fully disassembled I can lift the housing myself. It doesn't look...
  12. luthj

    2020 Ford Transit AWD

    Tacomas are also adding significant down travel past stock. There is operating within the original design range (albeit at higher than neutral). Then there is pushing it past the design range. You can see GM IFS and Toyota IFS that have been lifted significantly with more down travel, they...
  13. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    4 7/8" to the edge of the rim. I opted for the OEM reconditioned. Paint chips a bit easier than I would like, but for 50$, and they are clean.
  14. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    I went with 5 hole factory steels in black. No plastic cover. I will probably use chrome capped lugs and paint the hub black to match. https://www.wheelstiresandmore.com/p-23645-steel-wheel-rim-16x65-5195.aspx?keyword=stl05195u45
  15. luthj

    2020 Ford Transit AWD

    I would be very surprised if VC pushed the CVs to there limit. Just not the way they roll. I would suggest dropping them an email, they are typically very responsive.
  16. luthj

    Sprinter 4WD Conversion Idea, GMT-800 IFS.

    Some odd trans behavior to report. I was doing some driving with the updated program, and it got a bit odder than before. This time it would repeatedly go into LHM. I got codes on the ECM for TCM faults (2228 and 2211), as well as slipping trans faults on the TCM. I was watching the live data...
  17. luthj

    Voltage Drop Dometic CFX 75DZW

    Some connectors can be backprobed. If they have silicone seals around the wires, there are needle probes which slip between the seal and the wire without damaging anything.
  18. luthj

    Voltage Drop Dometic CFX 75DZW

    Poor or excessive connections can cause higher voltage drop. 10.1V is a totally depleted battery. Typically 10.5V is the Lower bound in capacity testing. Note that regularly discharging a battery to that level will have a significant impact on its lifespan. if you would like to identify...
  19. luthj

    DC-DC charger setup question

    What purpose does the 100A switch serve? Is it just for isolation/disconnect or? You must have a fuse on the DC-DC feed, as close as reasonable to the tie-in point. Obviously your second battery needs a fuse for its output as well. This needs to be as close to the battery as practical. If...
  20. luthj

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

    Mercedes has something similar in the OM612, 647, and 602 manuals. IIRC its up to 1 liter/quart per 500 miles or something similar. That limit is probably due to some runaway risk or other engineering concern. If the engine has the much oil consumption, there is likely other issues at hand...
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