MOT failure on Shocks.
Discussion
Just had the chim fail the MOT on leaking front shockabsorbers. So I now need to replace both the front ones. Anyone know the cost of the standard ones? and where can I order them from?.
If I wish to upgrade then which ones are the best value for money and their cost, at the moment I don't have a lot of spare cash but would consider upgrading the front now and the back possibly in the summer. I am not looking for the bet ones for track/racing but something that will improve general road driving.
Thanks.
If I wish to upgrade then which ones are the best value for money and their cost, at the moment I don't have a lot of spare cash but would consider upgrading the front now and the back possibly in the summer. I am not looking for the bet ones for track/racing but something that will improve general road driving.
Thanks.
I think your going to find that replacement originals cost as much,if not more than alternative adjustables.The Protechs are the ones to go for in this case.It would be very worth your while talking to Joo at www.track-car-solutions.co.uk about this,especially at the moment
jsr said:I think the rose joints are important,particularly on the front of these cars.The heat kills bushes quickly,rose joints are definately the way to go
I've just had rose jointed Avo dampers fitted by Leven Technology. Very please with them and cheap too. Just about to update a thread i started earlier this week.
.Jack the car up, wipe off the drips and put it back in for it's MOT. I got a "your shock absorber is leaking" comment after a service once. The suspension has been tested at every service since and it's still fine some 3 years on (although it's a bit tired in the way all standard shocks of the age are).
Or if you're feeling unsure, get a specialist to check it out.
Ian.
Or if you're feeling unsure, get a specialist to check it out.
Ian.
IPAddis said:I had exactly the same thing happen to me,you couldn't see a leak either.Come mot time(different garage) it sailed through.I asked my garage specifically,to check it out when it went for the mot,and they said it was fine!A second opinion is definately worth it if your not certain.
I got a "your shock absorber is leaking" comment after a service once. The suspension has been tested at every service since and it's still fine some 3 years on (although it's a bit tired in the way all standard shocks of the age are).
Or if you're feeling unsure, get a specialist to check it out.
Ian.
>> Edited by mongoose on Thursday 23 February 13:50
mongoose said:
I've just had rose jointed Avo dampers fitted by Leven Technology. Very please with them and cheap too. Just about to update a thread i started earlier this week.
There are two sides to every story, TVR's don't do heaps of mileage generally and underused bearings can sound like an old bedstead if they go rusty and a metal to metal joint in that area is rather asking for trouble (even on the expensive ones fitted to Nitron & Ohlins).
Its not the fact that I don't sell them if asked, I just reserve the right to point out that a good metalastic joint will still be good in 5 years plus and I can't guarantee that on a bearing.
As for having problems on the front shocks from heat, I think you will find that confined to the company that supplied polybushed joints.
gemini said:
The new Gaz shocks are getting good praise
Set of 4 for £570 ish
Designed especially for the TVR
See TVRCC web site
Early days on these yet, there was a delay getting the first deliveries out and only about 5 kits have been fitted so far but I'm sure feedback will follow as Gaz catch up.
gemini said:You should find that whichever brand you buy,they should be designed for the car specifically.People like Trackcar,will personalise your own inividual set to your requirements free of charge,with regard to both damping and spring stiffness,you you end up with your very own bespoke set
The new Gaz shocks are getting good praise
Set of 4 for £570 ish
Designed especially for the TVR
See TVRCC web site
Derek,i can see where your coming from about bushes over rose joints,but as we all know to use these cars regularly i dont think they will suffer,certainly had no problems on the Protechs.Also i prefer the rose joints from the point of view that should any problem occur,they are very easy and inexpensive to change.A good poly bush is better than rubber of course,but just like the superflex bushes,if i did have them,i would want to heat shield them.
>> Edited by mongoose on Thursday 23 February 19:26
mongoose said:
The new Gaz shocks are getting good praise
Set of 4 for £570 ish
Designed especially for the TVR
See TVRCC web site
Derek,i can see where your coming from about bushes over rose joints,but as we all know to use these cars regularly i dont think they will suffer,certainly had no problems on the Protechs.Also i prefer the rose joints from the point of view that should any problem occur,they are very easy and inexpensive to change.A good poly bush is better than rubber of course,but just like the superflex bushes,if i did have them,i would want to heat shield them.
>> Edited by mongoose on Thursday 23 February 19:26
Poor kevin at protech is pulling his hair out at the moment .. half the floor is covered in damper kits for me, and because they're almost all bespoke valving they take longer to build and test, poor bloke... I faxed another three orders off today so that will make him happy
The bushes play an important part in absorbing road input. If you replace them with spherical bearings this will amplify any limitations of the dampers in absorbing bumps. Which is fine if you have really good dampers, but might make you regret going for budget dampers. The higher spring/damper rate you are running, the more critical this is. If you're running spherical bearings on a road car you need good quality lined bearings, and they should be sealed. You can get flat seals that look a bit like washers to do this, or for an even better job (but a bit more awkward to fit) a gator that goes over the whole bearing. And if you really want to molycoddle your expensive dampers, put sleeves over the outside of the spring to keep dirt away from the top seal/bearing.
The damper bushes take the weight of the car all the time and some of them look quite distressed even when they are new, they are right by the exhaust headers which must make life harder for them, having said that on mine the dampers have always worn out before the damper bushes became a problem.
The damper bushes take the weight of the car all the time and some of them look quite distressed even when they are new, they are right by the exhaust headers which must make life harder for them, having said that on mine the dampers have always worn out before the damper bushes became a problem.
trackcar said:
Poor kevin at protech is pulling his hair out at the moment .. half the floor is covered in damper kits for me, and because they're almost all bespoke valving they take longer to build and test, poor bloke... I faxed another three orders off today so that will make him happy
No wonder Mr Avo is suddenly all over the forums, you must be upsetting him by selling so many shocks, nothing to do with me of course.
[quote=GreenV8S]The bushes play an important part in absorbing road input. If you replace them with spherical bearings this will amplify any limitations of the dampers in absorbing bumps. Which is fine if you have really good dampers,[quote]
I think you are implying that decarbon shocks like Nitron and Ohlins mask the harsh ride but I have yet to hear any comments about a harsh ride from any of the twin tube fitted cars on these forums and I'm not just talking about Gaz here, the Protech boys don't seem to complain either.
I think you are implying that decarbon shocks like Nitron and Ohlins mask the harsh ride but I have yet to hear any comments about a harsh ride from any of the twin tube fitted cars on these forums and I'm not just talking about Gaz here, the Protech boys don't seem to complain either.
No gazman I'm not trying to knock any particular brands, I'm just saying that different dampers have different abilities to absorb bumps without harshness, and in general cheaper dampers tend to be worse and more expensive dampers tend to be better. If you remove the compliance of the bushes, you become more sensitive to the capabilities of the dampers. Similarly if you go for a stiffer setup you become more sensitive to the capabilities of the dampers. Normally the reason for fitting bearings instead of bushes would be for a stiffer setup to improve body control for track use at the expense of ride quality; you'd typically got for a relatively stiff setup in this situation. This makes the quality of the dampers especially important. Hence any time I hear people going for bearings I wonder what setup they're going for and whether the dampers they're using are good enough to produce a decent ride quality with that setup.
GreenV8S said:
No gazman I'm not trying to knock any particular brands, I'm just saying that different dampers have different abilities to absorb bumps without harshness, and in general cheaper dampers tend to be worse and more expensive dampers tend to be better. If you remove the compliance of the bushes, you become more sensitive to the capabilities of the dampers. Similarly if you go for a stiffer setup you become more sensitive to the capabilities of the dampers. Normally the reason for fitting bearings instead of bushes would be for a stiffer setup to improve body control for track use at the expense of ride quality; you'd typically got for a relatively stiff setup in this situation. This makes the quality of the dampers especially important. Hence any time I hear people going for bearings I wonder what setup they're going for and whether the dampers they're using are good enough to produce a decent ride quality with that setup.
Or, what is the point in changing shock bushes for bearings and leaving metalasic or poly bushed wishbones etc?
BTW this thread is not going the way of my shocks are better than your shocks, just objective discussion, lets keep it that way heh
>> Edited by the gazman on Thursday 23 February 20:58
the gazman said:Nope,definately no problem with them on the Protechs,personally i'll never go back to bushes now.I'm about to upgrade to the double adjustable Protechs,and i'll have rose joints on those too
I think you are implying that decarbon shocks like Nitron and Ohlins mask the harsh ride but I have yet to hear any comments about a harsh ride from any of the twin tube fitted cars on these forums and I'm not just talking about Gaz here, the Protech boys don't seem to complain either.
I have heard of the rosejoints being noisy,but just like you say Derek,have never known anyone who has suffered this.Maybe it's a bit like the 'poly bushes transmit more road noise,and vibration' theory.In practice,thats also a myth,quite the opposite i found
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