Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Andy A on 23 March 2018, 21:43:45

Title: MOT failier with broken NS/R spring
Post by: Andy A on 23 March 2018, 21:43:45
The garage said it was OK to replace just the one spring. They will be providing and fitting the new one.

I rarely push the car over 3000rpm but I do drive on country/motorway roads quit a bit.

Will I feel any difference in the new and the old springs when driving?

I have a trip to Yorkshire cumming up later this year and would like a safe journey. But money is very tight right now.

Thanks



Title: Re: MOT failier with broken NS/R spring
Post by: STEMO on 23 March 2018, 21:46:12
Springs should be replaced in pairs......but you know that already.
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 23 March 2018, 21:54:36
Springs should be replaced in pairs......but you know that already.

Yes I do now. But I did ask the garage and he assured me it would be just fine.

Does a garage have to drop the rear diff down to fit just one spring do you know?

If yes the cost of fitting an extra spring should be less than the cost of fitting the first first.

Thanks
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 23 March 2018, 22:29:34
I'll phone the garage in the morning and tell them to order both springs for the rear.

Thanks
Title: Re: MOT failier with broken NS/R spring
Post by: amba on 23 March 2018, 22:37:20
To do the job properly the diff needs to be dropped down along with in hooking the exhaust so as to be able to safely removed the old springs and more importantly refit the new springs the correct way around.

Doubt the time/labour charge would be much different to do the 2 than just the 1 especially on a posted ramp as access is very straight forward. :y

Change the pair or you would notice a difference in the ride and cornering...if 1 has broke the other also probably isn't far behind  :)
Title: Re: MOT failier with broken NS/R spring
Post by: Nick W on 23 March 2018, 22:44:05
This is when they discover that your diff mounts are knackered....
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 23 March 2018, 23:43:10
And that the other spring is a completely different length and thickness...

Get both done as a matching pair. It isn't rocket science so you don't need to be a genius to realise just how dangerous your car could become.
Title: Re: MOT failier with broken NS/R spring
Post by: TheBoy on 24 March 2018, 09:32:43
Even if it was an identical spring (in terms of brand and spec), springs age, and the last thing you want is inconsistency handling that catches you out.

So I think you're doing the right thing in getting both done.
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 24 March 2018, 09:36:20
Just phoned the garage and they are ordering a second spring in from the same company.  :y

The spring is the only thing the car failed the MOT on this year. Very pleased.  :)

Thanks all.  :y
Title: Re: MOT failier with broken NS/R spring
Post by: amba on 24 March 2018, 10:45:34
A sensible and wise move :y
Title: Re: MOT failier with broken NS/R spring
Post by: BazaJT on 24 March 2018, 17:51:14
It's surprising how many people will have just one spring replaced especially on the front on the grounds of economy.When mine failed on a broken rear spring a few years ago I had the pair changed,in part because I've always believed such things should be one in pairs and also that the extra expense was negligible compared to any issues that could arise from running mismatched springs.
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 24 March 2018, 19:47:43
One had previously been replaced on my Desmond estate... I honestly thought the subframe was only attached on one side :o

Turned out that there were three differences between the rear springs... Length, thickness of coil and number of coils. Given the cost of the springs, it simply is not worth the risk.
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 25 March 2018, 17:32:14
This is when they discover that your diff mounts are knackered....

Nick, Can the diff rubber mounts still be bought and do you know the part number?
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 25 March 2018, 17:49:41
Been obsolete for at least 5 years... Only choices are second hand or refurbished with poly...  ;)
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 25 March 2018, 17:53:37
Been obsolete for at least 5 years... Only choices are second hand or refurbished with poly...  ;)

Are there any about or is it a diy poly job?
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 25 March 2018, 17:57:42
Been obsolete for at least 5 years... Only choices are second hand or refurbished with poly...  ;)

Are there any about or is it a diy poly job?
Possibly some from Poland, but easy enough to diy :y
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 25 March 2018, 20:16:27
Been obsolete for at least 5 years... Only choices are second hand or refurbished with poly...  ;)

Are there any about or is it a diy poly job?
Possibly some from Poland, but easy enough to diy :y

I can't remember the name of the Polish company but when I inquired a ways back they had problems. Do you know if they are all sorted now for the Omega polys?
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 25 March 2018, 20:23:21
I made my own...
Title: Re: MOT failier with broken NS/R spring
Post by: TheBoy on 25 March 2018, 20:36:29
Been obsolete for at least 5 years... Only choices are second hand or refurbished with poly...  ;)

Are there any about or is it a diy poly job?
I think Serek was importing some, might be worth a PM :y
Title: Re: MOT failier with broken NS/R spring
Post by: Nick W on 25 March 2018, 20:47:28
This is when they discover that your diff mounts are knackered....

Nick, Can the diff rubber mounts still be bought and do you know the part number?


They've been NLA for ages. Repairing existing ones is the only option.


Like this, stripped and clamped in a jig:


(https://www.dropbox.com/s/pm3tfan7pkwb5w9/DiffBushClamped%5B1%5D.jpg?dl=1)


and with the polyurethane cured:


(https://www.dropbox.com/s/w7oemk656x3as8k/DiffMountCuring%5B1%5D.jpg?dl=1)



Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 27 March 2018, 17:22:59
This is when they discover that your diff mounts are knackered....

Nick, Can the diff rubber mounts still be bought and do you know the part number?


They've been NLA for ages. Repairing existing ones is the only option.


Like this, stripped and clamped in a jig:


(https://www.dropbox.com/s/pm3tfan7pkwb5w9/DiffBushClamped%5B1%5D.jpg?dl=1)


and with the polyurethane cured:


(https://www.dropbox.com/s/w7oemk656x3as8k/DiffMountCuring%5B1%5D.jpg?dl=1)

Can you provide the measurements of the jig and where did you get the correct polyurethane mix from?

Thanks
Title: Re: MOT failier with broken NS/R spring
Post by: Nick W on 27 March 2018, 17:32:18
Andy, that jig is way over the top for one offs. It's intended to be reusable, which is why it's cobbled together out of ScrapbiniumTM
If your mounts are still more or less attached, you could make a jig from thin board, glue, nails and some aluminium foil in about 5 minutes. Once you've made the jig, cut as much of the rubber out with a hacksaw, then finish the rest with a wire-brush in an angle grinder.


Correct polyurethane? Who knows? It's just the stiffest that was readily available. You need about 300g to do both mounts. Get some black pigment; it just looks better:


(https://www.dropbox.com/s/u8qugvnakg1zs8k/RepairedDiffMounts.jpg?dl=1)
Title: Re: MOT failier with broken NS/R spring
Post by: STEMO on 27 March 2018, 17:45:37
Andy, that jig is way over the top for one offs. It's intended to be reusable, which is why it's cobbled together out of ScrapbiniumTM
If your mounts are still more or less attached, you could make a jig from thin board, glue, nails and some aluminium foil in about 5 minutes. Once you've made the jig, cut as much of the rubber out with a hacksaw, then finish the rest with a wire-brush in an angle grinder.


Correct polyurethane? Who knows? It's just the stiffest that was readily available. You need about 300g to do both mounts. Get some black pigment; it just looks better:


(https://www.dropbox.com/s/u8qugvnakg1zs8k/RepairedDiffMounts.jpg?dl=1)
I love that term  :y
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 27 March 2018, 17:54:33
Andy, that jig is way over the top for one offs. It's intended to be reusable, which is why it's cobbled together out of ScrapbiniumTM
If your mounts are still more or less attached, you could make a jig from thin board, glue, nails and some aluminium foil in about 5 minutes. Once you've made the jig, cut as much of the rubber out with a hacksaw, then finish the rest with a wire-brush in an angle grinder.


Correct polyurethane? Who knows? It's just the stiffest that was readily available. You need about 300g to do both mounts. Get some black pigment; it just looks better:


(https://www.dropbox.com/s/u8qugvnakg1zs8k/RepairedDiffMounts.jpg?dl=1)

So the foil is to go in between the board and the poly.  :y

If they say the bushes are knackered I'll have ago.  :y

As for the black pigment. Would some old ink cartridges do for that?
Title: Re: MOT failier with broken NS/R spring
Post by: Doctor Gollum on 27 March 2018, 18:01:19
Quote
... get some red pigment; it just looks cooler:...
Fixed... Although black ones are faster :D
Title: Re: MOT failier with broken NS/R spring
Post by: Nick W on 27 March 2018, 22:10:02
Quote
... get some red pigment; it just looks cooler  tackier:...
Fixed... Although black ones are faster :D


Fixed properly ;)


The pigment is a couple of quid when you order the polyurethane so it isn't worth trying something else. And it only needs a couple of grams for the small mix we need.
Title: Re: MOT failier with broken NS/R spring
Post by: Andy A on 28 March 2018, 10:37:18
Quote
... get some red pigment; it just looks cooler  tackier:...
Fixed... Although black ones are faster :D


Fixed properly ;)


The pigment is a couple of quid when you order the polyurethane so it isn't worth trying something else. And it only needs a couple of grams for the small mix we need.

Cheers Nick.  :y