Asking about axles

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Asking about axles

Post by ard126k » Mon Jan 21, 2019 8:30 pm

Gavin did you put something across the hub for the rods to bear on, the holes in my backplate don't line up with the hub at all. Mind you my brakes are Lockheed and yours will be Girling I think?


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Post by GavinR » Fri Jan 25, 2019 1:51 pm

Hi - yes mine are Girling so would have different holes. I don't remember having anything across the hub


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Post by ard126k » Fri Jan 25, 2019 8:55 pm

Ah - thought that might be it.
I thought I'd had a brainwave to put a couple of bolts through the holes at the end of the axle tube and use nuts on them to push the shaft out. But then I realised that all I was doing was tightening the oil seal cover on to the end of tube so of course the shaft couldn't go anywhere :oops:
So I've decided to give up and take the axle to a professional. Found someone within trailering distance who can help so we'll see how that goes.


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Post by ard126k » Mon Feb 25, 2019 9:28 pm

The prospect of spending money always gets my brain going. So I came up with another way to extract the halfshafts without damaging my elbows
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The photo's a bit dark (and lying down - how can I fix that?) but the upper wheel is resting on two lengths of wood, about an inch above its hub. Tightening the wheelnuts then pulls the hub and shaft up and out.

On the other side the hub came off the shaft (because I'd left the big hub nut off!) but I used two studs between the axle case and hub then tightened the big nut and out came the shaft.
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After chasing the axle all over the garage trying to get leverage on the diff I fixed two wooden legs in the suspension brackets
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and they held it nicely to get the diff out. For future reference the levers go in under the 'arch' of the diff. No spreading involved!
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and final dismantling was done by applying a hammer via a block of wood to the end of the pinion shaft. I'm expecting the new bearings from Nigel tomorrow so reassembly will then take place. I hope.


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Post by ard126k » Sat Mar 02, 2019 10:23 am

These are the knackerated bearings -
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Post by Roger Pennington » Sat Mar 02, 2019 12:51 pm

I presume that was noisy! :shock:


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Post by GavinR » Mon Mar 04, 2019 1:48 pm

That's very bad, not seen one like that before!


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Post by ard126k » Mon Mar 04, 2019 9:32 pm

The only noise I heard was the screech of skidding tyres when the axle locked up! Once I got it back to the garage I took the drain plug out to begin investigating and about 5 drops of oil came out. Honestly, who spends a year and a half recommissioning a car and doesn't check the axle oil? Me that's who :oops:

Moving on, I've now got the new bearings into the axle case and spent today setting the preload on them. The manual says that they should be tightened until 20-40 ft/lb is needed to turn the pinion shaft. With a 3ft bar bolted to the flange and a 3ft extension on my socket on the nut I managed to get it up to 10 ft/lb, where it's too tight to turn by hand. It turns easily and smoothly enough by spanner though so I'm leaving it at that. I spoke with Mark Wilson who reassured me that once the bearings bed in all will be well.


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Post by ard126k » Wed Mar 06, 2019 3:01 pm

Too much information! Just when I thought I'd finished with the pinion problem I took a look at the Autobooks manual which says only 2.5-3.3 lb/ft shoud be needed to turn the shaft. Previously I've been using the Reliant manual.
This doesn't look like a simple misprint or a case of the decimal point in the wrong place. Any opinions? (sorry!)


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Post by ard126k » Wed Mar 06, 2019 3:08 pm

Ed China was on Wheeler Dealers last night changing a diff on an Escort, showing how to measure turning torque with a weight on a piece of studding. Making the whole job look effortless as usual!


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Post by Roger Pennington » Wed Mar 06, 2019 3:45 pm

I watched Edd too, though it was a couple of days ago (down here at least), as I was out yesterday. Anyway, I've just looked in the Reliant Se6a manual and I can't see the numbers "20-40" anywhere, but one thing that jumped out at me is that all the "torque to turn" figures (in section K0.2) are in lb/inches. So you may be a factor of 12 out?


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Asking about axles

Post by philhoward » Wed Mar 06, 2019 3:50 pm

2.5 lb/ft is, of course, 30 lb/in...


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Post by ard126k » Thu Mar 07, 2019 12:21 pm

Should've gone to a better optician! Of course that's the answer, so obvious when it's pointed out.

It's a good thing I was practising with the old spacer, now I can dismantle the shaft again and do it up correctly with the new spacer in place.

Thanks from me and two very relieved bearings!!


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Post by ard126k » Sat Mar 09, 2019 8:52 pm

Much better! The pinion now turns with the correct torque as shown by Edd, in my case with a bucket of water on a socket extension handle.

The diff unit went in relatively easily, I found it best to have the axle lying upside down so that the side bearings slipped over cutouts in their housings.


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Post by ard126k » Thu Mar 14, 2019 5:48 pm

Just a small point - when replacing the hub bearings the housing for them is too deep, they should be left slightly proud of the case then finally pushed in to the correct place with the shims around them using the retaining plate and bolts. I took the liberty of leaving out a shim on one side to reduce play so it's now just noticeable.


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