Looks like one of our traders does not take care of our cars when test driving!
21 January 2016, 08:02 PM
#785
I've avoided posting for some time as some of th members appear to be very aggressive, and quite frankly not very knowledgeable. But what has turned out to be a baying mob trying to close down a garage seems more than a bit of a hysterical reaction and has prompted this reply. I've used Scooby clinic many times in the past and have nearly always has excellent work done with the odd small exception, the trouble seems to be that those who don't know him don't realise that Kev is a blunt speaking northerner with an abrasive sense of humour, but this doesn't make him or his staff less good at fixing cars. The road to the farm is indeed awful but everyone knows that and allows for it when visiting. I live in South Wales so just find it too far to go to Chesterfield and now get my car tuned by Martin in Plymouth who is extremely good and even better than Pat so far. I still can't find a good garage closer to home (Don't talk to me about garages that do Scoobies in Cardiff!). Kev at SC has always been rubbish at customer service (look at the waiting area) and Adam can be a patronising pipsqueak sometimes, but as a woman Scooby driver I've learnt to ignore this not uncommon attitude. Maybe this whole episode might make Kev send his staff on customer care courses, to remind them who actually pays their wages. Please don't bother posting angry male rants back to me as I hardly ever visit Scoobynet these days and your bile will be entirely wasted.
#paragraphs please.
21 January 2016, 10:17 PM
#790
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I took my car there a few months ago with an ABS issue and after 2 visits and them having the car for 4 days in total I ended up with the car no better off,3/4 tank of V-power missing but only 53 miles on trip computer,mpg down from 29.1 to 23.7,a flat tyre that apparently wouldn't inflate so had to purchase a wheel with a tyre that they fitted in the wrong direction for £90 and told me that my lower arm bushes were shot to pieces and would need replacing asap. Little did they know that the bushes were only 2 months old. Then I start to notice my turbo smoking...funny the narcissistic plank on the front desk was suggesting I upgrade my turbo to one of their sc45 units or something like that!! They're cowboys. I would never recommend them after that never mind after seeing this! Anybody who considers taking their pride & joy to that joke of an establishment after this seriously needs their head looking at!!!
Safe to say my local Subaru dealer sorted the ABS issue within 4 hours.
Safe to say my local Subaru dealer sorted the ABS issue within 4 hours.
Last edited by bugeyestuart; 21 January 2016 at 11:05 PM.
21 January 2016, 10:26 PM
#791
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I think someone needs to explain to me how there are any Impreza's left in Northern Ireland. We have government run MOT centres which do probably about an MOT every minute (think MOT factory), and roller brake tests are mandatory.
Maybe I should start supplying centre diffs to the thousands of cars here that are all broken every year? Make a killing!
Maybe I should start supplying centre diffs to the thousands of cars here that are all broken every year? Make a killing!
pointless, they'll all be dead before next years MOT due to the lack of decent quality fuel
21 January 2016, 11:41 PM
#792
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22 January 2016, 06:07 AM
#795
Your 'view' is in direct contradiction to Subaru and every diff manufacturer on the planet, and you hold it because you don't know how a diff works.
Sitting at 7k rpm in 3rd from a standstill and slowly releasing the clutch isn't going to immediately destroy the clutch is it, that's equivelant to what you're saying has no effect on the diff.
22 January 2016, 06:16 AM
#796
The garage of a lifetime as a petrolhead and 20 years as an engineer. I'm not a mechanic simply because I earn a hell of a lot more as a specialist in my field.
I've not once in this thread asked anyone to take my word for anything, just to read up on the facts that are easily available online.
I also appologise again for derailing this thread, it just happens to particularly irk me when so called specialists fail to understand the most basic of topics.
I've not once in this thread asked anyone to take my word for anything, just to read up on the facts that are easily available online.
I also appologise again for derailing this thread, it just happens to particularly irk me when so called specialists fail to understand the most basic of topics.
22 January 2016, 09:19 AM
#797
I agree with RB5 245 , and i've changed a few burnt out diffs in my rally cars over the years , a diff is not designed to slip 100% , as in only one axle spinning , that's the whole point in having it limited , the most popular diffs are either plated , or viscous , a plated diff , the plates are made to a certain thickness , and are then shimmed up to so when its bolted together it has a certain amount of preload , the last diff I rebuilt and reftted had 130nm of preload , this is the amount of pressure on a torque wrench it would take to spin the diff , ie , make it slip , anyone who doesn't know about diffs , they also have ramps on them , that can be adjusted , as the diff slips , the ramps move and tightens the diff even more , you can use different ramps to make it tighten up slowly or more aggressively , and you can have them to tighten on acceleration only , and free up when you come off the throttle , or a 2 way diff so they tighten on acceleration and deceleration , competition cars will have 2 ways diffs.
A viscous diff is a sealed unit , that has many more plates fitted , and then is pumped up with oil or grease , these seem to be fitted more in road cars as they don't need the maintenance of a plated diff , there are companies such as Bara motorsport that modifies these and tightens them up , had one done about 15 years ago when I had a Gp A Sierra Sapphire I used to rally.
Sorry if i'm teaching anyone to suck eggs , but slipping a diff WILL cause damage , it will not break a gearbox , but by slipping a diff will either overheat and burn the oil and grease in a viscous diff , and wear the plates prematurely in a plated diff , when the diffs wear you will end up having a 2wd Impreza !
Even a DCCD diff should not be run on a brake test machine , as these are not fully open when people think they are , they are also set to a certain preload , which will be less than a non DCCD diff , as the electrical motor spins to tighten and slacken the diff in use.
My WRC car had the box rebuilt last year , my car has an active front and centre diff , which is a more sophisticated version of a DCCD diff , they are plated diffs , and instead of an electric motor tightening them up , they are run off oil pressure , which is also pressured up with nitrogen , the rebuild of my box last year had both diffs re-plated as they were worn , they lasted 800 miles !
I've seen a few Impreza's on suspended tows , which makes me cringe , I recon you could burn a centre diff out in less than a mile doing that , it wouldn't take long .
And you will cause damage running them on a brake tester , it wouldn't burn out by testing it once , but everytime you put your car on one , it will damage the centre diff , the more you do it , the more damage is done , it will slacken off more everytime you did it until it doesn't work anymore
Anyway , thats my tuppence worth
Cheers Ian
A viscous diff is a sealed unit , that has many more plates fitted , and then is pumped up with oil or grease , these seem to be fitted more in road cars as they don't need the maintenance of a plated diff , there are companies such as Bara motorsport that modifies these and tightens them up , had one done about 15 years ago when I had a Gp A Sierra Sapphire I used to rally.
Sorry if i'm teaching anyone to suck eggs , but slipping a diff WILL cause damage , it will not break a gearbox , but by slipping a diff will either overheat and burn the oil and grease in a viscous diff , and wear the plates prematurely in a plated diff , when the diffs wear you will end up having a 2wd Impreza !
Even a DCCD diff should not be run on a brake test machine , as these are not fully open when people think they are , they are also set to a certain preload , which will be less than a non DCCD diff , as the electrical motor spins to tighten and slacken the diff in use.
My WRC car had the box rebuilt last year , my car has an active front and centre diff , which is a more sophisticated version of a DCCD diff , they are plated diffs , and instead of an electric motor tightening them up , they are run off oil pressure , which is also pressured up with nitrogen , the rebuild of my box last year had both diffs re-plated as they were worn , they lasted 800 miles !
I've seen a few Impreza's on suspended tows , which makes me cringe , I recon you could burn a centre diff out in less than a mile doing that , it wouldn't take long .
And you will cause damage running them on a brake tester , it wouldn't burn out by testing it once , but everytime you put your car on one , it will damage the centre diff , the more you do it , the more damage is done , it will slacken off more everytime you did it until it doesn't work anymore
Anyway , thats my tuppence worth
Cheers Ian
Last edited by Godspeed Brakes; 22 January 2016 at 09:21 AM.
22 January 2016, 09:55 AM
#799
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It's not a matter of your 'view' it's simply a fact which is easily verifiable after probably 5 mins on Google.
Your 'view' is in direct contradiction to Subaru and every diff manufacturer on the planet, and you hold it because you don't know how a diff works.
Sitting at 7k rpm in 3rd from a standstill and slowly releasing the clutch isn't going to immediately destroy the clutch is it, that's equivelant to what you're saying has no effect on the diff.
Your 'view' is in direct contradiction to Subaru and every diff manufacturer on the planet, and you hold it because you don't know how a diff works.
Sitting at 7k rpm in 3rd from a standstill and slowly releasing the clutch isn't going to immediately destroy the clutch is it, that's equivelant to what you're saying has no effect on the diff.
22 January 2016, 10:12 AM
#800
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I agree with RB5 245 , and i've changed a few burnt out diffs in my rally cars over the years , a diff is not designed to slip 100% , as in only one axle spinning , that's the whole point in having it limited , the most popular diffs are either plated , or viscous , a plated diff , the plates are made to a certain thickness , and are then shimmed up to so when its bolted together it has a certain amount of preload , the last diff I rebuilt and reftted had 130nm of preload , this is the amount of pressure on a torque wrench it would take to spin the diff , ie , make it slip , anyone who doesn't know about diffs , they also have ramps on them , that can be adjusted , as the diff slips , the ramps move and tightens the diff even more , you can use different ramps to make it tighten up slowly or more aggressively , and you can have them to tighten on acceleration only , and free up when you come off the throttle , or a 2 way diff so they tighten on acceleration and deceleration , competition cars will have 2 ways diffs.
A viscous diff is a sealed unit , that has many more plates fitted , and then is pumped up with oil or grease , these seem to be fitted more in road cars as they don't need the maintenance of a plated diff , there are companies such as Bara motorsport that modifies these and tightens them up , had one done about 15 years ago when I had a Gp A Sierra Sapphire I used to rally.
Sorry if i'm teaching anyone to suck eggs , but slipping a diff WILL cause damage , it will not break a gearbox , but by slipping a diff will either overheat and burn the oil and grease in a viscous diff , and wear the plates prematurely in a plated diff , when the diffs wear you will end up having a 2wd Impreza !
Even a DCCD diff should not be run on a brake test machine , as these are not fully open when people think they are , they are also set to a certain preload , which will be less than a non DCCD diff , as the electrical motor spins to tighten and slacken the diff in use.
My WRC car had the box rebuilt last year , my car has an active front and centre diff , which is a more sophisticated version of a DCCD diff , they are plated diffs , and instead of an electric motor tightening them up , they are run off oil pressure , which is also pressured up with nitrogen , the rebuild of my box last year had both diffs re-plated as they were worn , they lasted 800 miles !
I've seen a few Impreza's on suspended tows , which makes me cringe , I recon you could burn a centre diff out in less than a mile doing that , it wouldn't take long .
And you will cause damage running them on a brake tester , it wouldn't burn out by testing it once , but everytime you put your car on one , it will damage the centre diff , the more you do it , the more damage is done , it will slacken off more everytime you did it until it doesn't work anymore
Anyway , thats my tuppence worth
Cheers Ian
A viscous diff is a sealed unit , that has many more plates fitted , and then is pumped up with oil or grease , these seem to be fitted more in road cars as they don't need the maintenance of a plated diff , there are companies such as Bara motorsport that modifies these and tightens them up , had one done about 15 years ago when I had a Gp A Sierra Sapphire I used to rally.
Sorry if i'm teaching anyone to suck eggs , but slipping a diff WILL cause damage , it will not break a gearbox , but by slipping a diff will either overheat and burn the oil and grease in a viscous diff , and wear the plates prematurely in a plated diff , when the diffs wear you will end up having a 2wd Impreza !
Even a DCCD diff should not be run on a brake test machine , as these are not fully open when people think they are , they are also set to a certain preload , which will be less than a non DCCD diff , as the electrical motor spins to tighten and slacken the diff in use.
My WRC car had the box rebuilt last year , my car has an active front and centre diff , which is a more sophisticated version of a DCCD diff , they are plated diffs , and instead of an electric motor tightening them up , they are run off oil pressure , which is also pressured up with nitrogen , the rebuild of my box last year had both diffs re-plated as they were worn , they lasted 800 miles !
I've seen a few Impreza's on suspended tows , which makes me cringe , I recon you could burn a centre diff out in less than a mile doing that , it wouldn't take long .
And you will cause damage running them on a brake tester , it wouldn't burn out by testing it once , but everytime you put your car on one , it will damage the centre diff , the more you do it , the more damage is done , it will slacken off more everytime you did it until it doesn't work anymore
Anyway , thats my tuppence worth
Cheers Ian
BTW I'm certainly not starting an argument with you, based on what happened last time..
22 January 2016, 10:21 AM
#801
I think the point being made is a LSD is not designed to completely slip , as in one axle turning independently from the other , as on a brake test machine or suspended tow , that will cause damage to an LSD
Cheers Ian
22 January 2016, 10:39 AM
#802
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Correct , it will offer some slip , as in limited , you cannot have it completely locked , a diff has to have some slip , I can lock the diff in my rally car , and its not nice to drive , and sounds awful.
I think the point being made is a LSD is not designed to completely slip , as in one axle turning independently from the other , as on a brake test machine or suspended tow , that will cause damage to an LSD
Cheers Ian
I think the point being made is a LSD is not designed to completely slip , as in one axle turning independently from the other , as on a brake test machine or suspended tow , that will cause damage to an LSD
Cheers Ian
The issue of a 'protracted' slip is of course unwelcome levels of friction and subsequent heat damage. We've seen that a surprising number of times where unwise gearbox swaps by owners have resulted in ending up with one ratio in the front and a different one in the back! = Fried internals..
Have a nice day fella!
Re the original point of this post, I'm not condoning any aspect of it, although my understanding, correct me if I'm mistaken here, is that the car in question was subsequently used on a track day with no suspension work required whatsoever.. ?
22 January 2016, 11:22 AM
#804
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MOT stations at present are independent businesses. They want to you come to them. Therefore it isn't in their interests to annoy you with nit picking. Most of them are small, and therefore inclined to be nice to you. They also by and large don't have 4x4 brake testers. The big ones are more likely to have 4x4 brake testers but regrettably are often soul less places with no chance of a healthy rapport with the man who is doing the testing.
The small ones would therefore either pop a Tapley in and go for a drive about in your highly tuned pride and joy or possibly feel that they don't want to do that and just leave that part out.
Those who are horrified by that fact should also rush out and put their cat back on while they are at it!
22 January 2016, 11:36 AM
#805
Correct , it will offer some slip , as in limited , you cannot have it completely locked , a diff has to have some slip , I can lock the diff in my rally car , and its not nice to drive , and sounds awful.
I think the point being made is a LSD is not designed to completely slip , as in one axle turning independently from the other , as on a brake test machine or suspended tow , that will cause damage to an LSD
Cheers Ian
I think the point being made is a LSD is not designed to completely slip , as in one axle turning independently from the other , as on a brake test machine or suspended tow , that will cause damage to an LSD
Cheers Ian
does this negate the LSD damage you are implying always happens?
22 January 2016, 11:40 AM
#806
In the N.Ireland MOT where every car has to go through a government controlled MOT centre. the 4wd brake tests are done on a single axle roller but only 1 side of the roller is activated the other is free, so theoritically braking force is tested on each wheel individually
does this negate the LSD damage you are implying always happens?
does this negate the LSD damage you are implying always happens?
22 January 2016, 12:23 PM
#808
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Careful Alan, the customer service police will be after you at this rate.
22 January 2016, 12:36 PM
#809
In Republic of Ireland down the south, they never put my type-r on rollers while they're at testing.
If I see there's a younger fella taking my car for test, I politely remind him that the car is full time AWD, therefore cannot be tested on the rolling road.
Usually works.
If I see there's a younger fella taking my car for test, I politely remind him that the car is full time AWD, therefore cannot be tested on the rolling road.
Usually works.
22 January 2016, 12:38 PM
#810
My local place uses a Tapley if thats what its called.
You have flagged up all my concerns lol
You have flagged up all my concerns lol
Well here's a bit more controversy for you.
MOT stations at present are independent businesses. They want to you come to them. Therefore it isn't in their interests to annoy you with nit picking. Most of them are small, and therefore inclined to be nice to you. They also by and large don't have 4x4 brake testers. The big ones are more likely to have 4x4 brake testers but regrettably are often soul less places with no chance of a healthy rapport with the man who is doing the testing.
The small ones would therefore either pop a Tapley in and go for a drive about in your highly tuned pride and joy or possibly feel that they don't want to do that and just leave that part out.
Those who are horrified by that fact should also rush out and put their cat back on while they are at it!
MOT stations at present are independent businesses. They want to you come to them. Therefore it isn't in their interests to annoy you with nit picking. Most of them are small, and therefore inclined to be nice to you. They also by and large don't have 4x4 brake testers. The big ones are more likely to have 4x4 brake testers but regrettably are often soul less places with no chance of a healthy rapport with the man who is doing the testing.
The small ones would therefore either pop a Tapley in and go for a drive about in your highly tuned pride and joy or possibly feel that they don't want to do that and just leave that part out.
Those who are horrified by that fact should also rush out and put their cat back on while they are at it!