It is my understanding that the final actuation in the 463 is done hydraulically. The switch is electrical, which send a signal to a vacuum crossover valve which in turns activates the dedicated hydraulic system.
Hello Everyone,<br> <br> I recently dismounted my rear diff lock pump ,(240GD 460 Type) and tested it for pressure and leaks. It appears to be fine but the lock is not engaging. I followed the hydraulic lines and they end up in another pump on the rear axel right beside the differential. Could it be that that pump is stuck? What is the fuction of that pump (is that for the brakes or for the diff)? The front hydraulic lines also lead to a similar pump on the front axle (just like in the picture Karl posted). How many pumps activate the diff? <br> On a different note when GA (low 4x4) is on does the power distribute 50 /50 to both differential on a 460 type? If GA is on and rear diff is on and a front tire is spinning will most power go to the spinning wheel. Thank you for the help.<br> <br> Best regrads,<br> <br> Marcial
Those 'pumps' on the axles are in actuality 'slave cylinders' - just like the clutch slave cyldiner and your brake cylinders. They convert the hydraulic pressure started by those master cylinder 'pumps' into mechinical motion in the locking mechanism in the axle shaft.<br> <br> To answer your second question, yes, the power will go to the spinning wheel. Lock the front diff, too; and you'll have 25% power to each of the 4 wheels.
Thanks Dutch<br> just what I wanted to start work on mine.<br> Can U pull up a shematic of how the old hydraulic master cylinders for the ft/rr diff locks? Makes life much easier,and the shop manual doesnt seem to cover the master diff lock cylinders.At least I cant find it?<br> PS I like the saying from Mr Jefferson.Take it you are a pro 2nd man like myself?<br> Sean
I don't have a schematic for the master cylinders either - only for the slave unit on the axle; but it's not a schematic - just a few pages on the removal, disassembly, reassembly and installation of it.<br> <br> And, yes, old Tom definitely knew why the 2nd amendment was put in the US Constitution Bill of Rightd; and it's not just so that a person can go hunting . . . . . . . . . . . . . .at least not only for food anyway.