Search found 804 matches

by ndevans
Fri Oct 04, 2019 9:59 am
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Ok thanks gents.

So, if I just fit new 0.035" thrust washers, will it be ok?
What if I was to try to turn down a thrust washer so that it fits in the recess that's been worn? Could that work?
by ndevans
Thu Oct 03, 2019 10:57 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

A few photos this evening of the innards of the diff cage. IMG_20191003_213329~2.jpg IMG_20191003_213507~2.jpg IMG_20191003_213629~2.jpg IMG_20191003_213715~2.jpg IMG_20191003_213737~2.jpg The wear in the diff cage where the thrust washer has worn away to a ring is clearly visible. Can I have this m...
by ndevans
Thu Oct 03, 2019 7:24 am
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Thanks. I've never done a diff before either, so it's a steep learning curve for me. I'll be doing some more on the diff itself next week.
by ndevans
Thu Oct 03, 2019 12:32 am
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

While I've got the back axle off the car and in bits, I've taken the opportunity to do a bit of freshening up. Here are the rear brake backplates cleaned, painted & reassembled, ready for fitting to the also cleaned & painted back axle.
IMG_20191003_000802~2.jpg
IMG_20191003_000802~2.jpg (891.54 KiB) Viewed 623 times
by ndevans
Mon Sep 30, 2019 10:13 am
Forum: General Discussion
Topic: Axle tramp
Replies: 90
Views: 4542

Re: Axle tramp

I should add that I have the thin paper gaskets from ESM. They add a little under 0.1mm to the dial indicator.
by ndevans
Mon Sep 30, 2019 7:03 am
Forum: Mechanical
Topic: Rear hub gasket
Replies: 18
Views: 887

Re: Rear hub gasket

Thanks Phil, very instructive!
by ndevans
Mon Sep 30, 2019 12:24 am
Forum: General Discussion
Topic: Axle tramp
Replies: 90
Views: 4542

Re: Axle tramp

Thanks for the advice gents. Here are a couple of pics of the bearings going back in. IMG_20190929_172643~2.jpg N/S hub, with dial indicator zero'd on the hub face. IMG_20190929_174743~2.jpg Bearing in place, dial indicator shows bearing is 0.2mm above the hub face (without gasket). IMG_20190929_175...
by ndevans
Sat Sep 28, 2019 5:48 pm
Forum: General Discussion
Topic: Axle tramp
Replies: 90
Views: 4542

Re: Axle tramp

Ok thanks. So it's actually not far out then, as long as it's pressed home fully?
Is the BMC manual incorrect then, or have I just read it wrong?

Cheers N
by ndevans
Sat Sep 28, 2019 4:51 pm
Forum: General Discussion
Topic: Axle tramp
Replies: 90
Views: 4542

Re: Axle tramp

Re-fitting the bearings to the hubs today, using a bit of bearing lock. BMC manual says the outer face of the bearing should not protrude beyond the face of the hub and paper gasket when pressed into position. However, having measured the hub recess to the shoulder that the bearing sits on, the dept...
by ndevans
Thu Sep 26, 2019 10:21 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Silly question. :oops: Why is the crushable spacer apprx 21mm long and the solid spacer is 40.5mm? Good question, can't answer that. My spare crush washer is 21mm as well. Ok, here is my dissembled diff cage. IMG_20190926_213441~2.jpg Yeah, the oil seal got a bit mangled! IMG_20190926_213555~2.jpg ...
by ndevans
Thu Sep 26, 2019 1:18 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Thanks for the advice chaps. In fact, after a bit of gentle persuasion with a knife and two screwdrivers, I managed to prise the oil seal out last night. I did think of drilling a hole in it, then using a punch to try to turn it, but I didn't want to risk getting metal swarf in the bearing. Here it ...
by ndevans
Wed Sep 25, 2019 2:43 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Thanks Declan. Does your bearing puller grip the outer bearing race, or the inner? Does it leave the bearing re-useable? Having got the diff cage out of the case, I can see the pinion spins freely and smoothly in its bearing, with little noise, so I'm going to leave the pinion alone, just replace th...
by ndevans
Tue Sep 24, 2019 9:16 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Gotcha! IMG_20190924_211218~2.jpg An hour of "persuasion" with my two largest wrenches did the job. I was worried I was going to break the vice at one point, but finally it came loose. I said I'd give it until 9pm, then knock off, and at spot on 9pm it came loose! Is the dust cap meant to separate f...
by ndevans
Tue Sep 24, 2019 3:01 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

I've also thought about bolting a piece of angle to the flange, then bolting the angle to a thick piece of wood, in turn screwed firmly into the concrete garage floor.
by ndevans
Tue Sep 24, 2019 2:59 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

I tried something similar, with a piece of 3mm angle bolted to the flange, and held in the vice jaws. I don't think the surface that my vice is bolted to is strong enough to resist the turning force! I think it will splinter!
by ndevans
Tue Sep 24, 2019 12:55 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Looks interesting. Is that a bar, one end of which bolts to the flange, the other resting on the floor, while you use a socket and wrench to remove the nut? My diff is not in the car, but I am beginning to think that the way forward is to fit it it the axle, mounted on the car, brace the flange agai...
by ndevans
Tue Sep 24, 2019 9:29 am
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

Ah, i don't have an impact wrench.
Did it leave the nut intact, and re-useable?
by ndevans
Tue Sep 24, 2019 7:10 am
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

How did you secure the flange, if it wasn't on the car?
by ndevans
Mon Sep 23, 2019 11:21 pm
Forum: Mechanical
Topic: Differential overhaul
Replies: 198
Views: 7374

Re: Differential overhaul

My 3.9:1 diff mounted on my engine stand. The diff flange is fixed to the engine stand using several pieces of angle 3mm thick. The angle is bolted together, and to the engine stand, using M8 threaded rod. Getting the flange nut off is proving tricky. I have the correct size 1/2" drive socket, and a...
by ndevans
Sun Sep 22, 2019 5:31 pm
Forum: General Discussion
Topic: Axle tramp
Replies: 90
Views: 4542

Re: Axle tramp

Back axle stripped and cleaned, ready for a coat of paint, which is now drying. IMG_20190922_164352~2.jpg IMG_20190922_164406~2.jpg I hadn't realised that the diff ratio and approx. date of manufacture are stamped into the axle casing. IMG_20190922_164329~2.jpg Is it ok to clean the 4.22:1 diff by s...