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jaydom

Original Poster:

116 posts

43 months

[news] 
Sunday 9th October 2011 quote quote all
Hello everybody,
I'm from France and own a TVR 2500M from 1972 (2244TM ; one of the earliest).
I've got a big problem about the rear shocks of my car.
Mu garagist bought some (shocks with new coil springs) to David Gerald, changed them, but they are like wood if i could say.
The back of my car is as solid than a piece of metal.
David Gerald told to my garagist that the right parts are not available anymore.
My garagist told me that the best idea is to put some weight at the back of the car to get pressure on them.
Or to send them back to David Gerald to modify them (excuse me, but i think that it's not really the best way to get a secure car)
These two solutions are impossible for me.
What would be your best idea about this problem ?
Somebody knows what are the correct shocks with springs ? Where can i find some ?
Many thanks
Kind regards
Jerome

GAjon

1,935 posts

100 months

[news] 
Sunday 9th October 2011 quote quote all
Try taking the springs & shocks off and see if the wishbones travel up and down freely in thier bushes. Also the shock bush should have a washer/ spacer betweeen it and the rear upright casting, if it hasn't it will bind up

This is all assuming the springs and shocks you have don't have a problem.

Edited by GAjon on Sunday 9th October 09:15

Adrian@

2,921 posts

169 months

[news] 
Sunday 9th October 2011 quote quote all
You do not say what make shock absorber these are. Adrian@

thegamekeeper

2,268 posts

169 months

[news] 
Sunday 9th October 2011 quote quote all
Its not strictly true that the original parts are not available, they are not easily available. I have original factory supplied springs for 2500 cars but they would need to be fitted with Koni shock absorbers which are expensive. It sounds to me like your spring rates are too high for the car or they are too long for whatever shock absorbers have been supplied but that is just a guess based on the very limited information you have given. There are alternative suspension set ups available to original.

I think the first thing you should do is find a new "garagist, anyone who advises adding weight to a car to make the suspension work is approaching it from the wrong direction

Edited by thegamekeeper on Sunday 9th October 11:20


Edited by thegamekeeper on Sunday 9th October 17:33

jaydom

Original Poster:

116 posts

43 months

[news] 
Monday 10th October 2011 quote quote all
Hello everybody

many thanks for your prompt answers.

The shocks are fitted to the car but i'm going tonight to check what is the brand, but i think i won't be able to see the strenght of the springs.

I will post another message with all the informations i can have.

Regards

Jerome
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Slow M

2,032 posts

93 months

[news] 
Monday 10th October 2011 quote quote all
Take pictures.

Best,
B.

jerseyvixen

100 posts

75 months

[news] 
Monday 10th October 2011 quote quote all
hi
in the past i have had the same problem
been supplied with coil + dampers only to find the springs fitted were 1" to long 13" instead of 12".when i ask wot the spring rate was i was told i dont know.
i didnt know any better back then i would now send them back.



djc100

490 posts

133 months

[news] 
Monday 10th October 2011 quote quote all
I don't wish to insult by asking the obvious - but if the dampers are adjustable are you sure they are not set too hard. If they happen to be Koni's they may not have visible adjusters - you have to remove to adjust.

Anything above about 80% on my shocks results in 'solid' feeling suspension.

r's
David

Comadis

1,625 posts

110 months

[news] 
Tuesday 11th October 2011 quote quote all
first of all i would insist to the company David Gerald to give you the exact spring rates and the length of the coils they sent you.

if they dont do, put the coils in the carton and sent them back. YOU are the customer, YOU paid money, so YOU have the right that YOUR demands get fully satisfied.


are they 2.25inch (internal diameter) springs?

you will find lots of suppliers in UK where you can order such springs in differnt length and spring-rates, also they dont cost very much.

faulkner springs, rallydesign etc....


for the beginning also check that your dampers are set on the lowest damping-rate.

springs are often marked on the face side. the rate is often engraved on the flat area of the face-side.


Edited by Comadis on Friday 14th October 20:57

daza

229 posts

169 months

[news] 
Wednesday 12th October 2011 quote quote all
Jerome,

I had the exact same problem with the your current spring supplier when I was rebuilding my Vixen.

I fitted a four spring setup to the Vixen rear, only to find there was no suspension movement even when I stood on the chassis!!!

It transpired that I was possibly sold a set of Tuscan rear springs, (the weight of the Jag diff in a Tuscan would necesitate the higher rated springs - obviously the Vixen has a lighter diff, so the springs should in theory be weaker). I was also told that the spring rating was unknown.

I took the springs back and got my money back, and after some advice from TVRCC members I ordered a set of springs from Faulkner. The springs supplied by Faulkner were found to significantly improve the situation.

Its rather disappointing and somewhat concerning to hear that your current supplier still maintains "the spring rating is unknown" as my experience took place over 10 years ago.

Good luck!!!

Darren

Comadis

1,625 posts

110 months

[news] 
Tuesday 25th October 2011 quote quote all
conclusion...result? the thread opener has disappeared.....

jaydom

Original Poster:

116 posts

43 months

[news] 
Tuesday 25th October 2011 quote quote all
Hello
Conclusion ? None !
My garage, this great man, didn't call me back !!!!
I'm so angry ! So, so !
I'm leaving for holidays thursday and will come back for the middle of novembre (you know... Wedding holidays !).
So, i will post again after my coming back ; i hope so much to fix this problem
I tried to take some pictures but i have to lift the car cause for the time being, all the pictures aren't useful !
Many thanks again for all your answers
I will let you know how this story ends up
Cheers

Slow M

2,032 posts

93 months

[news] 
Wednesday 26th October 2011 quote quote all
jaydom said:
Hello
Conclusion ? None !
My garage, this great man, didn't call me back !!!!
I'm so angry ! So, so !
I'm leaving for holidays thursday and will come back for the middle of novembre (you know... Wedding holidays !).
So, i will post again after my coming back ; i hope so much to fix this problem
I tried to take some pictures but i have to lift the car cause for the time being, all the pictures aren't useful !
Many thanks again for all your answers
I will let you know how this story ends up
Cheers
Congratulations!

B.

jaydom

Original Poster:

116 posts

43 months

[news] 
Friday 25th November 2011 quote quote all
Hello everybody

some news from the returning man from Africa (south africa, bostwana, zambia, zimbabwe and mozanbique) !
that was great, beautiful, with a lot of different experiences !

Now, the subject of my TVR
No news of my garagist even if i call him 5 times this week only !
So i've asked to David Gerald the brand of the dumpers : AVO with this famous button that allows you to regulate the stiffness.

I know that the dampers are on the softness position (i tried by regulating the dampers on the tw extreme position, and nothing change : the car is like a piece of wood in the two positions)

so i'm sure now that the problem comes from the springs.

I've asked D. Gerald what is the ratio of my actual springs to check if some softer exist.

So, i work on this problem !!!!

If somebody has some AVO's like these, is it possible to know what is your type of springs ?

Cheers

Jerome

Slow M

2,032 posts

93 months

[news] 
Saturday 26th November 2011 quote quote all
Jerome,

Good to hear you had a nice vacation in a warm climate.

Re: TVR M-series suspension

  • Take your car back.
  • Call a UK specialist.
  • Discuss your intended use of the car with them, drive one of theirs if that option exists, and determine a budget.
  • Have pre-assembled spring/damper units shipped to you, and install them yourself.
Best,
B.

Astacus

1,727 posts

121 months

[news] 
Saturday 26th November 2011 quote quote all


Like these,

yum


smile

jaydom

Original Poster:

116 posts

43 months

[news] 
Thursday 22nd December 2011 quote quote all
Hi everybody
So, i took off the dumpers from the back and will send them back to David Gerald at the end of next week as they are closed next week.
Doug from David Gerald was really sad that these didn't match to my car ; he asked me to send them back to him and will check and fix the problem.
By the way, as my car is lift on "candles" (i don't know if it's the correct word in english but we call these kind of metal triangle like this in french), i ordered him some new for the front ; i'm sure the result will be better instead of changing only the rear ones.
I will tell you the final story when i will have fix everything on my car !
Many thanks for your help !
I will need some more help i think to have the right height for my car (2500M from 1972) ; i know with my cerbera that you have to calculate this height from chassis to ground.
If somebody know the right figures, thanks !
Regards
Jerome

heightswitch

4,501 posts

137 months

[news] 
Thursday 22nd December 2011 quote quote all
Astacus said:


Like these,

yum


smile
Who supplied those, and when did you get them?
The reason I ask is that those particular items could be faulty and give you a problem, but it depends upon when you got them and from whom!!

Edited to add, I now know who supplied yours astacus and as such I know they are OK. this is why you should always go to those who know.

N.

N.


Edited by heightswitch on Thursday 22 December 22:16

jaydom

Original Poster:

116 posts

43 months

[news] 
Thursday 22nd December 2011 quote quote all
To answer the last question, my garagist bought them to David Gerald i think 8 months ago.
And, from the beginning, the car was like wood at the back.
That's why i send them back to David Gerald to check everything, but the ons i have are the same thant the last picture on this topic
Cheers
Jerome

jpa

205 posts

118 months

[news] 
Thursday 22nd December 2011 quote quote all
heightswitch said:
Who supplied those, and when did you get them?
The reason I ask is that those particular items could be faulty and give you a problem, but it depends upon when you got them and from whom!!
Dont like the sound of this Neil, when and who would have supplied faulty units like these? I ask as I got a set in 2008. What 'fault' might they have?
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