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Performance Exhaust on a Turbo Diesel
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 Moderated by: Tom James, MOTman, KevG  

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Hardcore
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 Posted: Fri Oct 14th, 2011 10:36 pm

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Yeah, that was the old 106 that had the rear axel replaced. I like my cheap small capacity diesels just now.

My 106 was standard, and even with some modifications i don't quite like my Corsa B as much :(

Wesley
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 Posted: Fri Oct 14th, 2011 10:28 pm

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kit1958 wrote: The last 2 mots were correct, as the load valve was not fitted as standard ie from new.


kit1958,

I hope you are referring to "ye olde" 106? and not the new model of "Landie"?? A "Corsa B"??? LOL!;):P

ps; sorry I forgot to mention the "Scooby":P....:D

Last edited on Fri Oct 14th, 2011 10:42 pm by Wesley

Wesley
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 Posted: Fri Oct 14th, 2011 10:25 pm

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Hardcore wrote: Hardcore wrote: rocky69 wrote: The bypassed load sensing valve is also a fail I am afraid.

Since the majority of Corsa B's don't come with them as standard (mines is a higher specced CDX) if it was removed altogether, then is it still a fail? I.e not present to test it

I heard to adjust it, it has to be done when the weight of the car is on all 4 wheels.
The problem i have is almost all garages in my area have 2 poster ramps for services and stuff. The ones that have 4 posters are stictly for MOT's and no servicing and stuff.

Years ago i had a poverty spec 106. The rear Torsion beam axle has knackered. I replaced it with one from a Saxo. The Saxo one had the bias controller on it (buy my original 106 one didn't)
Rather than use it, the garage bypassed it with some fine copper pipe work.
It passed 2 MOT's at seperate stations after that.
Were they in the wrong?

Again, appretiate the answers so far guys. I studied automotive engineering at college years ago and i worked in a garage for a while as well.
I work with IT now, but i enjoy working on cars as a hobby. It know a lot of boy racers and the likes chav up their Corsa B's. I'm trying to modify mines, keeping it subtle and proper so i don't get any greif from the Vosa people or the traffic police.





Oh Dear!:(

A post originally for a "Corsa B" transformed itself into a "Landy" and then into a "Pug 106"??.....:?:?

ps; I forgot the "Scooby!:P.....LOL

Last edited on Fri Oct 14th, 2011 10:37 pm by Wesley

kit1958
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 Posted: Fri Oct 14th, 2011 06:04 am

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The last 2 mots were correct, as the load valve was not fitted as standard ie from new.

Hardcore
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 Posted: Thu Oct 13th, 2011 10:46 pm

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Hardcore wrote: rocky69 wrote: The bypassed load sensing valve is also a fail I am afraid.

Since the majority of Corsa B's don't come with them as standard (mines is a higher specced CDX) if it was removed altogether, then is it still a fail? I.e not present to test it

I heard to adjust it, it has to be done when the weight of the car is on all 4 wheels.
The problem i have is almost all garages in my area have 2 poster ramps for services and stuff. The ones that have 4 posters are stictly for MOT's and no servicing and stuff.

Years ago i had a poverty spec 106. The rear Tortion beam axel has knackered. I replaced it with one from a Saxo. The Saxo one had the bias controller on it (buy my original 106 one didn't)
Rather than use it, the garage bypassed it with some fine copper pipe work.
It passed 2 MOT's at seperate stations after that.
Were they in the wrong?

Again, appretiate the answers so far guys. I studied automotive engineering at college years ago and i worked in a garage for a while as well.
I work with IT now, but i enjoy working on cars as a hobby. It know a lot of boy racers and the likes chav up their Corsa B's. I'm trying to modify mines, keeping it subtle and proper so i don't get any greif from the Vosa people or the traffic police.


kev1975
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 Posted: Thu Oct 13th, 2011 09:47 pm

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Hardcore wrote:
rocky69 wrote: The bypassed load sensing valve is also a fail I am afraid.

Since the majority of Corsa B's don't come with them as standard (mines is a higher specced CDX) if it was removed altogether, then is it still a fail? I.e not present to test it


there is a failure for load sensing valve removed when it was fitted as standard .
why remove it ? surely it would be easier to re adjust it .

Hardcore
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 Posted: Thu Oct 13th, 2011 09:13 pm

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rocky69 wrote: The bypassed load sensing valve is also a fail I am afraid.

Since the majority of Corsa B's don't come with them as standard (mines is a higher specced CDX) if it was removed altogether, then is it still a fail? I.e not present to test it

kit1958
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 Posted: Thu Oct 13th, 2011 08:17 pm

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Agreed, missed that bit !!

rocky69
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 Posted: Thu Oct 13th, 2011 08:08 pm

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The bypassed load sensing valve is also a fail I am afraid.

kit1958
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 Posted: Thu Oct 13th, 2011 07:14 pm

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As long as they are supported, not damaged, corroded (excessively)or fouled by moving parts they should be ok.
By the way I always fail cars like yours on excessive noise :D
Nothing personal of course !!

Hardcore
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 Posted: Thu Oct 13th, 2011 06:04 pm

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Thank's for the replys.

It seems unreasonable for it to fail to me since reading a few inspectors on here have passed Land Rover's running a straight pipe with 0 silencers.

I know the inspectors are only following rules if they do fail it though, so i wouldn't blame them.
I guess i'll wait until MOT time and see if it passes or fails. If it fails, i should be able to re-connect the standard backbox to the custom centre section and it should be as quiet as standard again pretty much.

Rather than create a different thread, i guess i could ask this here as well.
My car has a brake bias controller / (load valve?) on the rear axel to increase braking to the rear wheels when there is a load on it.
For reasons related to lowering the car's suspension what is the MOT's stance if the brake pipes were routed to the rear wheel cylinders and bypassing the load sensing valve would this be a pass or fail?

rocky69
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 Posted: Thu Oct 13th, 2011 05:15 pm

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So it's a fail then.:D:D

robplaying
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 Posted: Thu Oct 13th, 2011 06:32 am

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assess subjectively the effectiveness of the silencer in reducing exhaust noise to a level considered to be average for the vehicle. Note:  The level of exhaust noise should be assessed at all engine speeds required for the exhaust emissions check




a silencer in such condition, or of such a type, that the noise emitted from the vehicle is clearly unreasonably above the level expected from a similar vehicle with a standard silencer in average condition.


http://www.motinfo.gov.uk/htdocs/m4s07000101.htm

Hardcore
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 Posted: Wed Oct 12th, 2011 10:56 pm

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Hi everyone,

I have a Corsa B 1.5TD. I've recently fitted a full stainless steel exhaust system from the downpipe back.
It has had the CAT and the centre silencer removed but still has a performance style real backbox in place.
Because it's a low RPM diesel engine, it's louder than a standard car obviously but probably 3/4 the noise at most the average Impreza with a performance exhaust makes.

I know the MOT is very vauge on this part and a lot of it depends on the inspectors perception but would it be unreasonable to fail it based on the above?
I've read other posts here about Landies with 100% straight through's being ok for MOT's

Last edited on Wed Oct 12th, 2011 10:57 pm by Hardcore


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