lrmonks · Sep 11, 2024

Just received this message from my MOT testing station.
'Please note that as part of the MOT test, Diesel engines are run at high revolutions for sustained periods of time, it is important to be aware of the condition of your diesel engine, especially with regard to things like camshaft drive belts prior to having an MOT carried out'.
I am rather concerned about this for my 1997 300tdi. Is this a new regulation? What can I do about this? I have always tried to take care of the engine and never brutalised it like thas. Makes me wonder if they are trying to wreck old diesels.

Anaconda · Sep 11, 2024

Place I go have this sign up for a fair few years now.

lrmonks · Sep 11, 2024

Anaconda said:
Place I go have this sign up for a fair few years now.

Do you know what revs and for how long? My station is now closed otherwise I would call them.

ER1C · Sep 11, 2024

lrmonks said:
Just received this message from my MOT testing station.
'Please note that as part of the MOT test, Diesel engines are run at high revolutions for sustained periods of time, it is important to be aware of the condition of your diesel engine, especially with regard to things like camshaft drive belts prior to having an MOT carried out'.
I am rather concerned about this for my 1997 300tdi. Is this a new regulation? What can I do about this? I have always tried to take care of the engine and never brutalised it like thas. Makes me wonder if they are trying to wreck old diesels.

Forget it they need to rev/run to pass emissions usually anyway this is just covering them, " please don't fall down the toilet"

Anaconda · Sep 11, 2024

No, but surely they have always done this?
The notice is to cover themselves in the rare occasion something might go wrong.
Eg, your cambelt fails due to it never been changed.

lrmonks · Sep 11, 2024

Anaconda said:
No, but surely they have always done this?
The notice is to cover themselves in the rare occasion something might go wrong.
Eg, your cambelt fails due to it never been changed.

Never heard of this before, so maybe thay have thrashed the F out of in in neutral before. I really don't like the sound of it as I once had a diesel which ran away and blew up and that was only for less than a minute!

Anaconda · Sep 11, 2024

They don't sit there with their foot flat to the floor.
You have no choice if you want a MOT.

lrmonks · Sep 11, 2024

Anaconda said:
They don't sit there with their foot flat to the floor.
You have no choice if you want a MOT.

Just wondering if they differentiate between a BMW M3d and an old 300tdi. Also the memo makes me wonder if they have blown a few up.

Anaconda · Sep 11, 2024

Somewhere between 3500rpm and 4500rpm.
I imagine the above vehicles have different official readings they need to match.
I don't know I'm not a MOT tester.

Hicap phill · Sep 11, 2024

Just wind the pump stop out so they can’t over rev it.

They may complain but just say it was built like this

Anaconda · Sep 11, 2024

Consultation regarding a new particle number emissions test as part of the MOT.
For modern diesel vehicles, maybe that is what your getting concerned about?

lrmonks · Sep 11, 2024

Anaconda said:
Consultation regarding a new particle number emissions test as part of the MOT.
For modern diesel vehicles, maybe that is what your getting concerned about?

If it's just for modern diesels then I can now sleep peacefully.

Anaconda · Sep 11, 2024

lrmonks said:
If it's just for modern diesels then I can now sleep peacefully.

They still rev yours up though, like they always have.

lrmonks · Sep 11, 2024

Anaconda said:
They still rev yours up though, like they always have.

I have been present at the old tests with the pipe down the exhaust but I was OK with the revs then. If it's still the same that'll be OK.

lynall · Sep 11, 2024

Just make sure the engine is up to operating temperature before presenting for the mot.

lrmonks · Sep 11, 2024

lynall said:
Just make sure the engine is up to operating temperature before presenting for the mot.

I hope I can have a While U Wait then.

kevstar · Sep 11, 2024

Mine bounces off the limiter every day lol no big deal plus the reek that comes out it they will soon back off.

ER1C · Sep 12, 2024

lynall said:
Just make sure the engine is up to operating temperature before presenting for the mot.

That's my thinking, for older diesels they would tend to fail the MOT on emissions. They used to say, take it out for 5 mins "drive it like you stole it", then it would pass.

300bhp/ton · Sep 12, 2024

lrmonks said:
Never heard of this before, so maybe thay have thrashed the F out of in in neutral before. I really don't like the sound of it as I once had a diesel which ran away and blew up and that was only for less than a minute!

That would have been something wrong with the engine then, not the test..... ffs

ER1C · Sep 12, 2024

300bhp/ton said:
That would have been something wrong with the engine then, not the test..... ffs

Exactly and that's why we need the noddy guidance......

"please make sure you use the door on the way out....... walking through the wall tends to hurt"

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