Silver Paint in Powerlock diff
Discussion
Came to change my diff oil the other day - the amount of sludge in there was incredible. The first few gloops were like silver paint. Is this normal - or is it indicative of whatever friction surfaces in there giving up? This is on the 400SX - now done 9500 miles (wow - 3000 miles completed without binning it!)
Incidentally I have refined my diff and gearbox oil changing to a fine art. I use an old gallon plastic oil container with a hole drilled in the cap and a rubber tube inserted. The tube is held in place with a narrower plastic tube on the inside of the cap. Pop the tube into the filler hole. Then put in the new oil and use a couple of pieces of wood and a pistol-type wood clamp to compress the container. Keep the container as high as possible.
It takes about a half hour for the oil to flow through the tube but it beats scrabbling underneath the car with those poxy 1l bottles. You can work on something else while the oil flows in.
Incidentally I have refined my diff and gearbox oil changing to a fine art. I use an old gallon plastic oil container with a hole drilled in the cap and a rubber tube inserted. The tube is held in place with a narrower plastic tube on the inside of the cap. Pop the tube into the filler hole. Then put in the new oil and use a couple of pieces of wood and a pistol-type wood clamp to compress the container. Keep the container as high as possible.
It takes about a half hour for the oil to flow through the tube but it beats scrabbling underneath the car with those poxy 1l bottles. You can work on something else while the oil flows in.
It's as you think, particles of material from the friction plates as they wear. Bit worrying the first time I saw mine, but as long as there are no teeth-shaped bits in there as well, and the diff actually works, perfectly ok. - Seem to remember that it has a magnetic plug, which should catch most of the debris.
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