Suspension Work - How far should I go?

4720 Views 10 Replies 4 Participants Last post by wiadereczko, Jun 11, 2012

dmcsweeney

Discussion Starter · Jun 11, 2012

Hi all,
with my car now approaching 155k, and banging and rattling alot, I've decided some suspension work is in order. But where do I start, or more importantly stop? I've noticed the following;
1. Banging from rear end.
2. ARB bushings - the sleeves I put on the bar have moved so these bang again - but I have a new genuine set.
3. Knocks from the front and the o/s tyre to arch gap is an inch less than the n/s - but the spring does not appear to be broken.
4. Car wanders about on the motorway in the slightest wind.
5. When the car was in for tyres I stuck a bar in various places in the rear suspension (especially around the hub carrier) and had movement.

So far I have replaced all drop links, both lower link arms, and have bought new wishbones and 4 arb bushes. I can't seem to open the 'how to guide' for the suspension for some reason so not sure about diagnosis. What would it be sensible to replace? Considering the car has covered 75k on Irish roads, farm tracks, fields and building sites fully laden I assume I have alot of work!
Regards,
Dave

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trinitysmith

· #2 · Jun 11, 2012

Hi - this is my second attempt at posting a reply so apologies if an earlier version appears - it sounds like you experience the same Cork roads as I do - and like yourself am having rear suspension woes - I recently replaced the rear ARB's with polyurethene ones sourced from ebay (c£29 a pair) - you cant miss them as they 'illuminous red' in colour - they are excellent and have certainly made the back end very quiet and no more bangs going over bumps, and I'm now considering putting them on the front

I've also replaced the rear shock aborbers and that to has certainly added to the smoother/quiter ride.

I've read on the forum that the lower control arm (C2S50863) can cause suspension grief/wandering and might be worth replacing (or is that lower link arms you refer to ??), dont go to J&P in Cork - they're €111 each versus the £38 each on ebay

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wiadereczko

· #3 · Jun 11, 2012

Hi,
Been somewhere in check-list for noise from front and rear suspension but after server moving all gone.

I'm polyurethane bushes supplier for X- type and S-type and can say from my experience the most popular bushes replaced by jag user are Front and Rear ARB bushes, rear (front) lower control arm and main subframe/ trailing arm bushes.

If you lift the car and grab rear wheel in 12 and 6 and moving check is there any play in lower arm if is you need replace the arm or only bushes for polyurethane one. The rest of bushes need check visually when car up and using some crowbar start looking for any move.

If you decided to change your bushes for polyurethane one pleas feel free to PM me.

There you have most of the suspension parts give you idea where to look:

On rear suspension you have:
1. Rear ARB bushes
2.REAR FRONT LOWER CONTROL ARM Jaguar part number: C2S50863
3.REAR SUSPENSION LOWER CONTROL ARM (where spring is) Jaguar part number: C2S24713
4.REAR TRAILING ARM POLYURETHANE BUSHES REAR HUB CARRIER/ SUBFRAME MOUNTING BUSH Jaguar part number: C2S14739
5.REAR UPPER CONTROL ARM POLYURETHANE BUSHES Jaguar part number: C2S39484
6.REAR HUB CARRIER / SUSPENSION STABILIZER ARM / KNUCKLE POLYURETHANE BUSH Jaguar part number: C2S14740
7.REAR shock absorber lower bushes

Front:
1.FRONT ANTI ROLL BAR POLYURETHANE BUSHES Jaguar part number: C2S51258
2.FRONT WISHBONE LOWER ARM BUSHES
3. SHOCK ABSORBER
4. DROP LINKS

If you decided to change your bushes for polyurethane one pleas feel free to PM me.

Good luck

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Goudy

· #4 · Jun 11, 2012

Hi Dave,
It's hard to check beyond the obvious loose items you can feel by pulling at the wheel, as the cars weight will usually mask a lot of problems when the wheels are on the ground, and when the weight is off it all hangs loose anyway.

I'd hazard a guess it's all pretty much shagged out by now!

You've got the wishbones and ARB bushes, 155k and it's probably worth the changing the shocks all round and replacing the mount/bearings on the front.
While the springs are off, a good check and compere them to each other, if you think they are needed you can pick them up easy enough.

The front and rear hub carrier bushes are starting to become more common on here, I'd fit the ploys to the back as they are miles better than the rubber stuff.
Leave the inner spring pan bush alone, this is where the rear toe is adjusted from and would be you last job to get it aligned up properly.

I recently had one of those pesky rear control arms go on me, ruined my rear tyres and the car steered badly from the rear (brown trousers coming back from Belgium)

What do you need to know regards work?

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dmcsweeney

Discussion Starter · #5 · Jun 11, 2012

trinitysmith, thanks for the info! Cork roads are pretty tough on a car! Are you city or county? The lower control arms are what I've already replaced. I plan to do the front end in one hit if I can (and need to change an outer cv boot, and the crank pulley while everything is stripped) so want to be sure I get everything at once. Will be staying well clear of J&P!
Wiadereczko, thanks for the part numbers. I'll certainly keep you in mind if I decide to go for poly bushes.

Goudy, thanks mate, hope all well over there! Will need to pay another visit judging by the shopping list! Was hoping you weren't going to mention shocks! They don't seem too bad, and the imbalance figures were very low in the last test a few months back.

Are poly bushes available to fit to the shocks? The ones on mine look a bit worn. Will be back with more questions once I finish the paperwork I'm doing and can concentrate on the information.

Regards,
Dave

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dmcsweeney

Discussion Starter · #6 · Jun 11, 2012

BTW anyone got a diagram of the front and rear suspension so I can be sure I'm looking at the right parts?
Regards,
Dave

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Goudy

· #7 · Jun 11, 2012 (Edited)

http://www.jaguarforum.co.uk/f26/checklist-rear-suspension-noises-38995.html

http://www.autozone.com/autozone/re...acPherson-Strut-Assembly/_/P-0900c152801c27d6
Front isn't a great image, nut you get the gist.

Things are good, maybe meet for a pint soon.

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dmcsweeney

Discussion Starter · #8 · Jun 11, 2012

Thanks Iain, for some reason I seem to have problems opening the 'how to' guides but have that now. Think it's this new laptop they've given me! at least the forums are no longer blocked by the company filters though.
Regards,
Dave

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Goudy

· #9 · Jun 11, 2012

no, it's since the forum changed, all the "how to bugger it" links don't work!

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wiadereczko

· #10 · Jun 11, 2012

Goudy said:
http://www.jaguarforum.co.uk/f26/checklist-rear-suspension-noises-38995.html

Good work Goudy was looking other day this post for hour unsuccessfully

I just wonder when someone fix "How to guide"

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wiadereczko

· #11 · Jun 11, 2012

dmcsweeney said:
Are poly bushes available to fit to the shocks? The ones on mine look a bit worn.

Yeas they are new in my offer and as your shock are in good condition oneself can save your Euro

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