2016 LR4 Coolant Crossover, Water Pump, Thermostat Replacement

txfromwi

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Thanks!
Glad I did not touch that!

A quick look around and overlooking the drain plug again, but there it is...
It's a 3/16 allen wrench.

I am also doing the coupler, so any remaining oil will come out when I take off the snout.


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jlglr4

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No oil will come out the snout. The only oil in the sc is in that little box under the drain plug. It’s the gearbox - isolated from the rest of the unit. Not much volume, and not much oil. Just a little in the bottom to bath the bottom of the gears.
 

txfromwi

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I am told that the fill volume for this is 151mL, but I recovered only 84mL.

No evidence of leaks and yes, I am sure I got it all out - syringe and tubing and moving SC to make sure I was getting it from all the corners of the gearbox.

New oil has no appreciable odor, used oil has very unpleasant odor, closest I can come to a description is nasty earwax.

Fill volume should be ?? Opinions....

(Does it actually ever get easy??)



UPDATE I sent SCOL photos of all the stickers and all the casting numbers and they state at 200% certainty (their words)
that the fill volume on this particular gearbox is 90mL. Nergal, the tech guy, spoke to second level support and apparently, once they had all the photos,
they said "OH, it's one of Those...". We agreed that the refill volume should be 85mL.

I think it's another case of "every Rover is unique because they are all put together using whatever is laying around that day."



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ftillier

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Put in a bit, swish it around/spin the supercharger by hand if you can, then pull it back out and see if the color is darker. If the color is like new fluid, then you got it all, if it's darker, then some was left behind that you didn't get. Maybe that'll give you a hint as to where to go between 85-150?
 

txfromwi

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OK, so minor SC coupler spring damage to the main shaft, this is mainly cosmetic, but I can feel a very small bit of wear.
Do you think this will be out of balance enough to require replacing, or just put it back together...
The new coupler does not touch the main shaft.


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