She's failed-MOT/Front Discs For a 500
Discussion
I took our Griff for a MOT test, I ve noticed nothing unusual about the car she's been fine.Nothing to worry about I thought.
So you could have knocked me down with a feather when the tester reported a failure. It seems the discs are running out.
Can you fix it ?
Yes we can.
How much?
£160 all in
Go ahead says I thinking it would be more like £350 .
After a while some discs turn up but they are not the correct type but off a Ford Escort.
In the end I had to go to a TVR dealer and bought the discs off them at twice the price.
Does anyone know which car the front discs are sourced for a Griffith 500?
I searched the forum but no one seems to know.
Cheers
Ian
So you could have knocked me down with a feather when the tester reported a failure. It seems the discs are running out.
Can you fix it ?
Yes we can.
How much?
£160 all in
Go ahead says I thinking it would be more like £350 .
After a while some discs turn up but they are not the correct type but off a Ford Escort.
In the end I had to go to a TVR dealer and bought the discs off them at twice the price.
Does anyone know which car the front discs are sourced for a Griffith 500?
I searched the forum but no one seems to know.
Cheers
Ian
Measure the ones that came off is easiest, there is a good chance but no gaurantee they are from a Mk 4 Escort RS turbo IMHO. Which AFAIR... disc dia 260mm; overall height 58mm; disc thickness 24mm; hub dia 63.6mm; 4 stud pcd 109(ish I think).
If they are 53mm they have 5mm spacers, throw the spacers away and buy the proper 58mm height ones. I think this was down to TVR getting a job lot ofd the wrong ones at the right price
.
just had a thought I've written the above based on an assumption it is a 5 ltr and not an early 4ltr in which case it will have a 240mm disc diameter with the rest the same. AFAIK it is still from a Mk4 escort.
Add the usual Shpub measure and measure again and take them along to the suppliers to make sure they look the same too, bar the disc height mentioned above that is.
AIMHO etc............
Harry
If they are 53mm they have 5mm spacers, throw the spacers away and buy the proper 58mm height ones. I think this was down to TVR getting a job lot ofd the wrong ones at the right price
. just had a thought I've written the above based on an assumption it is a 5 ltr and not an early 4ltr in which case it will have a 240mm disc diameter with the rest the same. AFAIK it is still from a Mk4 escort. Add the usual Shpub measure and measure again and take them along to the suppliers to make sure they look the same too
, bar the disc height mentioned above that is. AIMHO etc............
Harry
I wouldn't throw the spacers away as some cars need them because the uprights are slightly different. There is a lot of variation including the redrilled Grandad 5 stud discs. Don't order a set of those as they won't have the 4 stud fitting.
Take all comments of it's from a such a such with a very large pinch of salt as often this info is wrong or only correct for one particular car and there is nothing to say that yours will be the same. Add to that the fact that some of the pattern parts have variation as well and I am not surprised you ended up with the wrong discs. Unless you check and compare, chances are that it will happen.
BTW several of the well known suppliers actually have the wrong data in their catalogues as well....
Take all comments of it's from a such a such with a very large pinch of salt as often this info is wrong or only correct for one particular car and there is nothing to say that yours will be the same. Add to that the fact that some of the pattern parts have variation as well and I am not surprised you ended up with the wrong discs. Unless you check and compare, chances are that it will happen.
BTW several of the well known suppliers actually have the wrong data in their catalogues as well....
MajorClanger said:
So you could have knocked me down with a feather when the tester reported a failure. It seems the discs are running out.
What's the criteria for worn discs failing an MOT? i.e. how badly worn do they have be to fail the MOT?
MC
Test was carried out on a rolling road for the brakes.
This test meauseres imbalance, pressure and fluctuation.
If i had a DTI I would have been able to tell you it was 60 thou but.....
Ian Lewis said:
The discs that came off are re-drilled 5 stud Granada stock.
Ian
If they were re-drilled, sounds like the old discs were wrong, so no point in trying to match the wrong ones?
I was told front escort cosworth, rear sierra rs 4x4 (i think)!
If you are desperate to match what was originally on there, the factory are quite helpful about finding your original spec.
If you just want a good set of discs that work, speak to a well-liked dealer or indie - Peninsula have always been very good with parts and overnighting spares and Jason there is very helpful, to the point of going to ask the mechanics what they actually do to make sure you have all the parts you need for a job.
I'm going to get a lot abuse about this reply but here goes
, do not fit anything apart from TVR discs to your P&J
I was told that at the factory when I picked a new set of front discs up from the factory, they are not standard.
The blam
nks are indeed ford , they are heat treated and crossed clyndrically ground at the factory to relieve all stresses.
you are not stopping some ford escort even a cossie, you are stopping one of the livelest cars on the road.
total price from the factory with a set of pads 205 pounds
regards simon
, do not fit anything apart from TVR discs to your P&J
I was told that at the factory when I picked a new set of front discs up from the factory, they are not standard.
The blam
nks are indeed ford , they are heat treated and crossed clyndrically ground at the factory to relieve all stresses.
you are not stopping some ford escort even a cossie, you are stopping one of the livelest cars on the road.
total price from the factory with a set of pads 205 pounds
regards simon
do they take the vauxhall switchgear and dynamically balance that as well? 
Come on, later cars had decent set ups but my early 4ltr is std sierra/escort
They get ford discs and put them in TVR boxes.
The pad compound *may* be different, but.....
I wouldnt put pattern discs on but I took mine to the Ford dealer and measured them up against the sierra stuff and then just fitted them.
www.speedways.co.uk/shop/index.html
do a search for Ford discs and cross referance the size of the originals against the charts
Come on, later cars had decent set ups but my early 4ltr is std sierra/escort
They get ford discs and put them in TVR boxes.
The pad compound *may* be different, but.....
I wouldnt put pattern discs on but I took mine to the Ford dealer and measured them up against the sierra stuff and then just fitted them.
www.speedways.co.uk/shop/index.html
do a search for Ford discs and cross referance the size of the originals against the charts
Dream Machines supplied me Griff 500 discs at £32.50 each. They are 260mm dia, 24.25mm thick, 58.25mm thick overall from back face to hub face, 146mm dia hub face, 4 stud. If it will help, I have a jpeg drawing of the disc but can`t get to it until Monday.
I made the drawing to prove Tarox`s web site, and those of their suppliers, list the wrong size part for the Griff 500. (G88 grooved discs 0891, not 0892G - fantastic with standard pads but not cheap at £160 odd)
Is it fair to say Ford parts that can stop a fast Cosworth will be more than up to the job of stopping an equally fast TVR that weighs 1/3rd less?
I made the drawing to prove Tarox`s web site, and those of their suppliers, list the wrong size part for the Griff 500. (G88 grooved discs 0891, not 0892G - fantastic with standard pads but not cheap at £160 odd)
Is it fair to say Ford parts that can stop a fast Cosworth will be more than up to the job of stopping an equally fast TVR that weighs 1/3rd less?
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