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Petol Engine into a Diesel Van  Rate Topic 
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 Posted: Thu Sep 19th, 2019 04:14 pm
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fotso
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Mana: 
All part of the joys of testing Fran.

Petrol engines get it easy for the emissions test, they just have to run at around half throttle for enough time to keep the cat hot & give a stable gas reading.

Diesels have to go through a number of acceleration cycles to governed speed to measure particulate density.

There's very little in the way of support from DVSA in the event of a diesel going pop .

castrolrob has the misfortune to test a lot of shonky old vans with starship mileges hence he can be a bit cynical - no offence rob 🤗🤗🤗

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 Posted: Mon Dec 17th, 2018 07:18 am
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castrolrob
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nope,test abandoned due to risk of damage or injury,me punching s**t out of the gopher.....

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 Posted: Sun Dec 16th, 2018 12:09 pm
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Stealth
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castrolrob wrote:
I was thinking of someone conducting a smoke test on it:shock:and yeah ive seen it tried:shock::shock::shock:

Zero emissiins...failed to trigger DSM ?

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 Posted: Sun Dec 16th, 2018 10:43 am
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castrolrob
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I was thinking of someone conducting a smoke test on it:shock:and yeah ive seen it tried:shock::shock::shock:

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 Posted: Sat Dec 15th, 2018 09:31 pm
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Stealth
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It will be nowhere near as shonky as some of robs munters believe me.:D

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 Posted: Sat Dec 15th, 2018 09:28 pm
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fran9r
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Lol I own a shonky old van (2006 SDI Caddy). If it goes pop the 2.8 goes in quicker than planned!

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 Posted: Sat Dec 15th, 2018 09:25 pm
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Stealth
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All part of the joys of testing Fran.

Petrol engines get it easy for the emissions test, they just have to run at around half throttle for enough time to keep the cat hot & give a stable gas reading.

Diesels have to go through a number of acceleration cycles to governed speed to measure particulate density.

There's very little in the way of support from DVSA in the event of a diesel going pop.

castrolrob has the misfortune to test a lot of shonky old vans with starship mileges hence he can be a bit cynical - no offence rob 🤗🤗🤗

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 Posted: Sat Dec 15th, 2018 06:42 pm
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fran9r
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I'm pleased it's not straightforward for you guys either, for the layman understanding this has been complex!

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 Posted: Sat Dec 15th, 2018 04:38 pm
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Stealth
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castrolrob wrote:
might rattle a tad on the governor test:D:D:D:Daint there summat in the manual about not conducting a test in such a way that it would cause the car to s**t itself all over your test bay?

Doubt a VR6 is gonna crap itself at 2500 rpm for a BET test

;);)

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 Posted: Sat Dec 15th, 2018 07:22 am
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castrolrob
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might rattle a tad on the governor test:D:D:D:Daint there summat in the manual about not conducting a test in such a way that it would cause the car to s**t itself all over your test bay?

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 Posted: Fri Dec 14th, 2018 09:04 pm
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Stealth
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Clifford Pope wrote:
Stealth wro
If a vehicle first used on or after 1 September 2002 is fitted with a different engine, you must test it to the emissions standards for the age of the vehicle.

You must test "it"  - meaning the engine, or the vehicle?
How do you test a petrol engine to the standards of a diesel ?


"It" meaning the engine Clifford. The text was taken directly from the spark ignition section of the Manual


As for the rest I'm sure you know the answer.

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 Posted: Fri Dec 14th, 2018 08:57 pm
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Clifford Pope
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Stealth wro
If a vehicle first used on or after 1 September 2002 is fitted with a different engine, you must test it to the emissions standards for the age of the vehicle.

You must test "it"  - meaning the engine, or the vehicle?
How do you test a petrol engine to the standards of a diesel ?

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 Posted: Fri Dec 14th, 2018 07:35 pm
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fran9r
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Thanks for the replies everyone.
The engines I have are fitted with cats as OE.  Happy to keep a cat.
I thought the statement that 2002 on cars with different engines adopt the emission standard of the car (not the enigne) would mean the relavent Euro standard, but that appears not to be the case?
If it's the default Petrol spec for 2002 on, as in the book, I have no worries with either.

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 Posted: Wed Dec 12th, 2018 03:26 pm
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castrolrob
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that's why I said the emissions limits for the engines hes suggested will essentially be identical to default which means a cat test of some sort in all likelihood unless hes got a real old cat exempt v6 which he would then have to prove is the case to be tested to the lower limits

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 Posted: Wed Dec 12th, 2018 12:39 pm
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Stealth
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fran9r wrote:



I'm not sure I must therefore pass a Euro 4 level test (2006 Caddy) or a Euro 5 test (2010 Caddy Maxi)?  Although both look as thought they would. 



If you swap engines, the Caddy limits will be irrelevant. The emissions will be tested to the limits set for the donor engine.

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 Posted: Wed Dec 12th, 2018 07:21 am
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castrolrob
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Mana: 
the onus is on you when presenting for test to prove the age of the engine you've installed if you want it testing to a lesser limit or else it gets tested to default for the age of the vehicle which for the engine options you've outlined is pretty much identical.essentially itll need a functioning cat system of some sort.

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 Posted: Tue Dec 11th, 2018 08:34 pm
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fran9r
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bimmer wrote: Here is a link to the emissions book.


https://www.gov.uk/government/publications/in-service-exhaust-emission-standards-for-road-vehicles


Thank you for that.
So the 2.8 is the same as the 3.2 (apart from the max text RPM being slightly higher for the 3.2). 

Obviously my vehicles are not mentioned in the annex as they have totally different engines.
Therefore I presume they will fall into the "Other Petrol Fuelled Vehicle" category, which means:

From 1/7/02but not included in the Annex 0.3% volNo requirementNo specific requirement but engine must not be clearly above its normal idling speed0.2% vol0.02% vol (200ppm)1±0.03˃2500rpm˂3000rpm
Any thoughts from anyone?
I'm not sure I must therefore pass a Euro 4 level test (2006 Caddy) or a Euro 5 test (2010 Caddy Maxi)?  Although both look as thought they would. 

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 Posted: Mon Dec 10th, 2018 10:15 pm
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bimmer
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Here is a link to the emissions book.


https://www.gov.uk/government/publications/in-service-exhaust-emission-standards-for-road-vehicles

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 Posted: Mon Dec 10th, 2018 06:59 pm
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Stealth
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fran9r wrote:
That is excellent news, thank you.  So the Golf R32 ran to 2012, so easily covers the years I need.
2nd Question, any change the 12v VR6 (2.8) can pass Euro 4 standards?
If so I will be a happy guy.


As I said.....check out the book 😉

Most cat emissions limits have hardly altered from the defaults in 1995 when cat testing became compulsory.

There are variances, with some manufacturers having a wider than normal Lambda range for ultra lean burn engines, but you will probably find the 2.8 is same as the 3.2.

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 Posted: Mon Dec 10th, 2018 06:23 pm
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fran9r
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That is excellent news, thank you.  So the Golf R32 ran to 2012, so easily covers the years I need.
2nd Question, any change the 12v VR6 (2.8) can pass Euro 4 standards?
If so I will be a happy guy.

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