EGR valve mod

[sheeprus]

Dear Mr. Bushwacker,

Just some follow up info - having done the EGR mod, it's difficult to say if there's much difference.

However, I've got to take the ponies up to Builth Wells for the weekend, from Porthcawl. I know the route with the Surf well, so I will know if there are any improvements by the time I get home on Sunday night.

Will post news after the event.

Best regards

Dear Lovely Boyo

How did the trip to Bulth Wells go and does this whole EGR bit help or not? I have to ask as I'm towing 5 llamas in a fecking big cattle box from Windsor to Cork in a few weeks and and extra always helps.

Cheers

Chris
(a Risca Boyo in Cork)

[BUSHWHACKER]

I'll try that on mine and see how it goes, just out of curiosity what is an EGR valve, seems a bit like an appendix, makes no odds if you have one or not.

Here you go Chris....
http://www.yotasurf.co.uk/forums/att...achmentid=2565

p.s. Risca boy eh? I'm in Abercarn.

[sheeprus]

p.s. Risca boy eh? I'm in Abercarn.

Always good to have the Taffia at large!! Thansk for that, will make that mod tonight, still curious, what exactly does is this thingy supposed to do when it's connected? Still seems like the surf equivilant of an appendix to me.

Cheers

C

[Draig]

Always good to have the Taffia at large!!
C

oh yes - eventually we'll get the world back.

remember, you can take the boy out of Wales, but you'll never take Wales out of the boy

[Chillitt]

bit like Ireland, where you can take the girl out of Cork, but...

[da SLUG man]

oh yes - eventually we'll get the world back.

remember, you can take the boy out of Wales, but you'll never take Wales out of the boy

but vince isn't welsh!... or did i dream it?

[BUSHWHACKER]

SSSSSHHHHHHHHHH!
hehe you're right, but I am Wenglish!
I've been living in Wales for 18 years now and I pay welsh taxes, so surely I'm multinational now.

[da SLUG man]

don't panic, i'm scotlish... you'd never know except words like cold... and sometimes stutter if i can't think of the local word for what i'm talking about!

sounds strandge with my estuary-bristol cross accent saying oose! and oxta!

[ja1983]

....lol, anyway back on subject..!

EGR, Exhaust Gas Recirculation..?

basicaly a device just to keep the bunny huggers happy and sends warm, semi-burnt exhaust vapour back through the combustion process, thus burning off all the nasty stuff that usually gets flung out of the exhaust.

[Guest]

....lol, anyway back on subject..!

EGR, Exhaust Gas Recirculation..?

basicaly a device just to keep the bunny huggers happy and sends warm, semi-burnt exhaust vapour back through the combustion process, thus burning off all the nasty stuff that usually gets flung out of the exhaust.

Actually it's there to reduce the combustion temperature to below that where Oxides of Nitrogen are formed, Abou 600 degrees F I seem to remember. Actually increases CO2 emissions slghtly as well as heavy particulate emissions.

[BUSHWHACKER]

So by disconnecting the EGR, the engine will run hotter?
and when it's connected, how come more smoke is produced if they're being burnt?
You see how confusing this bl**dy thing is?

[Guest]

Engine might run a little hotter, but possibly not as it has to work less hard. Belches black smoke because the engine runs less efficiently and dosen't burn all the fuel - black smoke equals unburnt fuel. As I said, EGR does also reintroduce dirty exhaust which doesn't really get burnt up - just reduces combustion temp. With regards to the increase in temp, the EGR only reduces the burn just enough to stop NoX being produced probably only 20 degress or so.

[fatfires]

What's the down-side of doing this?

youve got one less cable tie

[rainmaker]

Hi

Approaching this from a slightly different angle, if the valave is rendered useless (or unused, whatever) wouldn't it be easier to remove the whole assembly - as in the aforementioned Pajeros - and get rid of the surplus?

Also, when you do the bend-tie-enjoy method, do you need to block the tube where the tied pipe went to originally?

I'm asking all this because my 2.4 is currently being disembowelled at the hands of yours truly and if it doesn't need putting back, I'd rather not.

[Chillitt]

i think on the australian site there is dimensions for a blanking plate if you want to remove the thing completely.
but i may be wrong