Volvo Diff Decisions

Post by **Fred** » Wed Aug 23, 2017 12:18 pm

Stood up so the milky CRC/water mix can drain and dry out, covered most holes: https://twitter.com/FredCookeNZ/status/ ... 1724892162

Post by **Fred** » Wed Aug 23, 2017 12:22 pm

Next up:

1) Debur and weld plates over holes in housing, leak test with petrol or meths or something thin
2) Debur and derust the free-wheeling spool
3) Clean more muck from rear cover and/or housing - had a good crack tonight, but more to go
4) Paint any bare or rusty steel with black zinc of some sort
5) Reassemble with RTV for back cover
6) Reassemble the brakes

Then I can pull the G80 axle from the caravan and install this contraption! :-D

After which the G80 can go into the 740 sedan and spin some sweet donuts :-)

Can't wait!

Post by **Fred** » Sun Aug 27, 2017 9:34 am

Waterblasted the rear cover and entire housing, inside and out, re CRCed the insides and machined faces.

Thought the cover hadn't come up too well, until I checked out the before photo just now, so I went and shot a couple of afters: https://twitter.com/FredCookeNZ/status/ ... 8810004481

Post by **Fred** » Thu Aug 31, 2017 10:56 am

Nearly there! Just welding on of the cover plates, and cutting out of those plates, a bit of cleaning, a lick of paint, and reassembly!

Tonight was deburring, derusting, recleaning, and reoiling. Now living inside instead of precariously out the back: https://twitter.com/FredCookeNZ/status/ ... 1368571904

Post by **Fred** » Wed Sep 27, 2017 9:45 am

Cut out the blocking plates from the beaten up mangled old Toyota windage tray tonight:

https://twitter.com/FredCookeNZ/status/ ... 2644531200
https://twitter.com/FredCookeNZ/status/ ... 0290573313
https://twitter.com/FredCookeNZ/status/ ... 2806602752

Post by **Fred** » Mon Jan 08, 2018 1:55 pm

Next up, likely tomorrow, reassembly! :-D

Via cleaning the rear cover... damn.

Post by **Fred** » Wed Jan 10, 2018 2:08 am

Pics from previous post:

More soon! :-)

ToxicGumbo · Post by **ToxicGumbo** » Fri Jan 12, 2018 5:38 pm

This is tremendous work, Fred. It's precisely this sort of performance improvement that I don't see anywhere else and have a great appreciation for.

Post by **Fred** » Sat Jan 13, 2018 11:45 am

Is that a veiled way of saying it's a complete waste of time? If not, it likely should be, but I don't mind. The "gainz" are real, even if they don't really matter much. It's mostly about the weight, but also about lower friction.

More done last night, none tonight, last night's work:

https://twitter.com/FredCookeNZ/status/ ... 5590524928
https://twitter.com/FredCookeNZ/status/ ... 1325764608

Post by **Fred** » Mon Jan 15, 2018 4:58 am

A little progress, in fact, it's basically ready to install minus light-weight gear oil, disks/drums, and unable-to-be-used calipers:

https://twitter.com/FredCookeNZ/status/ ... 0184071169
https://twitter.com/FredCookeNZ/status/ ... 7252019201
https://twitter.com/FredCookeNZ/status/ ... 1136986112

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