Search found 8 matches
- Mon Mar 13, 2023 6:07 am
- Forum: Jaguar
- Topic: Jaguar Ipace Charger
- Replies: 1
- Views: 3727
Re: Jaguar Ipace Charger
This piqued my interest as it has an integrated DC-fast charge and OBC circuitry, CANBUS controlled, and seemingly cheap. I was able to pull the wiring and connector information for USDM, but it looks like the wiring may also include parallel wiring for Type 2 ports/CCS. Connector service numbers ar...
- Thu Dec 22, 2022 3:32 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Thats basically a PTFE lined seal on NBR or FKM. Good option for those that wants to try that. Pics shows the pitted shaft surface has already been sleeved. Was that a prior DIY rebuild? If so, what sleeve was used and is any material hardness info known? Mine has not been rebuilt, as far as I can ...
- Wed Dec 21, 2022 11:19 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
@dzolotnyuk bought the following from AHP. https://openinverter.org/forum/viewtopic.php?p=46191#p46191. Failed quickly with speedi-sleeve. Actually I don't understand the design of AHP's SB20 seal, its a classic asymmetric angle V shaped seal which relies on compression on v tip to provide pumping ...
- Wed Dec 21, 2022 6:03 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Shaft cleanup will happen later today, we'll see what it looks like. I was able to pick some residue off the seal lips to reveal which looks like virgin material. Gray and black flakes, similar to graphite-impregnated material. But the lips are STIFF. Which I could see definitely being an issue as t...
- Wed Dec 21, 2022 1:03 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
Serial is T13, so 2013. I haven't been able to clean up the shaft yet and my picture doesn't convey the thickness of the build up of the PTFE on the shaft. It almost seems like the bond between the seal and seal body failed vs. wetness on the shaft or corrosion at the encoder. Have we seen any other...
- Tue Dec 20, 2022 5:06 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
I've contacted US Seal with a design envelope and application information (without being 100% explicit to avoid potential CoI). I also tore-down my 50k mile donor for my project. RevE (non-reman) had the triple seal, no inverter wetness and maybe a drop or two by the encoder. Blue G48 coolant. There...
- Mon Dec 19, 2022 10:39 pm
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Larger diameter = higher surface speeds. 40mm over 30mm at 10k RPM is +5m/s (40mm = 20.9m/s 30mm = 15.7m/s) so there will be more frictional heat. True, but have found several seal MFG that quote 40 m/s on dry lube PTFE within spec. Pushing to 40mm diameter @18k RPM puts as at 37.7 m/s surface sp...
- Mon Dec 19, 2022 6:20 am
- Forum: Tesla
- Topic: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
- Replies: 475
- Views: 307117
Re: Tesla Large Drive Unit (LDU) Motor Teardown and maintenance
All make sense. However, the rotor's shaft locks in 30mm diameter and ~8mm seal width so these can't be changed. Only remaining design variables are material + shape + shaft surface prep. Thinking about this aspect, what if we COULD make the sealing shaft diameter larger? I.e, a machined aluminum a...