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Old 17th August 2017, 09:21   #1
nikon2481
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Default Newbie, rear suspension rebuild and thank you

Hi there

Three months a go, I bought a MG ZT. Three weeks a go, I had an upper suspension failure (it cracked), due to rust, so I’ve completed a rear suspension rebuild. During the rebuild, I searched the forum for tips and info and I just wanted to say ‘thank you’. The advice posted here proved invaluable.

So, I’d thought I’d share the experience...

After reviewing the poor state of the suspension, I decided to replace all components, for both sides, either with refurbished or new parts.

So, the shopping list was…

Used parts, included…
Subframe (off a 75)
Toe brackets

New parts included…

Upper arms
Lower arms
Top bushes
Lower bushes
Tow bushes
Rollbar brackets
Rollbar link joints
Springs
Shock absorbers
Brake back plates
Hubs
Handbrake pads, clips, springs and expander
Handbrake cable
Discs
Caliper rebuild
Pads
Nuts, bolts, for all.

The hardest thing was trying to undo the corroded bolts. Nearly all rounded off. We found an extractor socket (Irwin expanding bolt grip – we got ours from screwwfix) that got us out of sticky water and the blowtorch was also a trusted companion.

Fitting the subframe was easy, but good to have a second pair of hands. And working with new bolts is refreshing. I fitted the upper arms before fitting the subframe but left torquing up until the car sat on it's wheels. Which, indecently meant it sitting on concrete blocks, so I could move underneath.

For the toe brackets, the bolts from Rimmer weren't available so I got some 10.9 bolts off ebay (http://www.ebay.co.uk/itm/231821119338).

Pressing the bushes in and out for the upper and lower joints and the tow joints was OK once we (I should say my dad) crafted a tool. And we put the bushes in the freezer and heated up the joint to ease fitment. Very Heath Robinson but effective.

Brake overhaul was OK. Rather than work with rushy springs and clips, all were replaced from products sourced from ebay. All were reasonably priced. The rebuild kits for the calipers were easy to fit. The handbrake was a NAUGHTY WORD-NAUGHTY WORD-NAUGHTY WORD-. Since I had new cables because I was replacing the backplate (the cable and plate had become one), I cut off the cable where it meets the underside inspection hole, with a Dremal cutting disc. This was probably the worst job.

Dampers and springs were very easy.

I’ll be cutting out the bushes from the subframe. Three of them are OK and I might be able to machine a fourth, just in case I want to fit to car, in the future.

The work took me and my dad around 2 weeks. Everything has had a lick of paint, even the new stuff. The subframe, rollbar and toe brackets were stripped back and covered in Red Oxide paint before being sprayed and we’ve wax oiled the underbody and anywhere where water can be trapped. Next stage is a four wheel alignment. I’m hoping that they can adjust the handbrake because I’ve started to hit the wall.

My one tip: Work with nice bolts, nuts and ensure threads are clean. Makes life so much easier.

I've got loads of pics of the rebuild but it seems I'm restricted to 5 images, is that right?
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Old 17th August 2017, 09:37   #2
Avulon
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Thanks for your post, sounds like you've got stuck right in there, you can embed pics hosted from somewhere else like flickr (but not photobucket, they don't allow it). It'd be great to see some photo's of the rebuild.
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Old 17th August 2017, 09:39   #3
elroy
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working on mine at the moment just waiting for upper arms to arrive
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Old 17th August 2017, 10:10   #4
nikon2481
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Thanks Avulon. So I just copy and paste the url from the image in flickr?

Elroy, if you need help, give me a shout.
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Old 17th August 2017, 11:25   #5
Avulon
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Quote:
Originally Posted by nikon2481 View Post
Thanks Avulon. So I just copy and paste the url from the image in flickr?
I'm not completely sure - I'm in the process of moving all my stuff off of PB and haven't looked at how to embed the photo's from flickr yet - there may be an 'embed' link shown next to the image for you to copy and paste into your forum posts. I've found a youtube how to here https://www.youtube.com/watch?v=LfnfStXBanY (I haven't had time to watch it myself yet)
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Need a T4 ?: T4 Owners Map thanks to Stevestrat ( use at your own risk)

Where?:
https://en.wikipedia.org/wiki/Tanelorn
Mods/Retrofits:

PCV vortex 'filter'; bluetooth; inline thermostat; reversing sensors; plenum spyhole ; headlamp washers ; Diy mp3 player replacing CD multichanger; FBH with remote; Headlamp washers; black/chrome front grille, rear blind; Xenon projectors
To do:
puddle lights; 2 Din cd/nav to fit; boot release button
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Old 17th August 2017, 11:33   #6
nikon2481
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That's a great help. Cheers Avulon
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Old 17th August 2017, 11:41   #7
nikon2481
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Default photos from rebuild

01 by steven kitching, on Flickr

02 by steven kitching, on Flickr

04 by steven kitching, on Flickr

05 by steven kitching, on Flickr

06 by steven kitching, on Flickr

07 by steven kitching, on Flickr

08.1 by steven kitching, on Flickr

08 by steven kitching, on Flickr

09 by steven kitching, on Flickr

10 by steven kitching, on Flickr

11 by steven kitching, on Flickr

12 by steven kitching, on Flickr

13 by steven kitching, on Flickr

14 by steven kitching, on Flickr

15 by steven kitching, on Flickr

16 by steven kitching, on Flickr

17 by steven kitching, on Flickr

99 by steven kitching, on Flickr
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Old 17th August 2017, 12:54   #8
Kh44nn
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I wonder how much it cost you just in parts


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Old 17th August 2017, 12:58   #9
nikon2481
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Don't want to think about it. Sub frame was £100 and uppers were £40 each of ebay. Discs were £120 for pads and discs. Most of rest from Rimmer.
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Old 17th August 2017, 18:48   #10
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Avulon, your work is inspiring. Where did you source the subframe bushes? Are they the same as for the ZT?

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