Flushing your intercooler

Hirsty's wrote:
> As to what is organic, take a look at the container and it might state this,
> if not use the help number they give ( or should give ), in the extreme any
> university chemistry department will help with a few polite questions.
>
>>What exactly is the 'hazardous nature' of organic solvents? I am carefull
>>when using solvents but I wouldn't recognise an organic one if it came
>>and slapped me round the face.

The web, stick your solvent name into google, preferable the chemical
name if you know it and safety or "COSHH" (COSHH = Control Of Substances
Hazardous to Health), is generally pretty good at this sort of thing as
long as you have your twaddle filter (mental rubbish sorting) turned up
fairly high. If several sites are in agreement then you probably have
the right answer.

Alistair

Trichloroethane
Genklene


isn't that the stuff that seemed like it would go boom! if a match went near
it,
But it put the match out?

On Tue, 20 Jul 2004 20:05:53 +0100, "Jon" <[email protected]> wrote:

>Trichloroethane
>Genklene
>
>
>isn't that the stuff that seemed like it would go boom! if a match went near
>it,
>But it put the match out?
>

Tric used to be used in fire extinguishers, those old ones with the
pump handle on top.

Pretty evil stuff, I think the EU banned it a while ago, but it was
fantastic at cleaning old car parts, dissolved the grease something
fantastic. Has a similar effect on brain cells as well.

Alex

On or around Thu, 22 Jul 2004 21:12:41 +0100, "Jon" <[email protected]>
enlightened us thusly:

>
>"Austin Shackles" <[email protected]> wrote in message
>news:[email protected]...
>> On or around Wed, 21 Jul 2004 09:13:32 +0300, "Pantelis Giamarellos"
>> <[email protected]> enlightened us thusly:
>>
>> >Diesels have a tendency to soil the intercooler's internals with lots of
>> >black oily and sticky stuff.
>>
>> how'd they manage that then?
>>
>> AIUI, you go inlet > filter > turbo > intercooler > engine.
>>
>> so where does the gunge come from? Unless the turbo's dodgy?
>engine breather
>


--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Nessun maggior dolore che ricordarsi del tempo felice nella miseria"
- Dante Alighieri (1265 - 1321) from Divina Commedia 'Inferno'

On or around Thu, 22 Jul 2004 22:56:33 +0100, Austin Shackles
<[email protected]> enlightened us thusly:

>On or around Thu, 22 Jul 2004 21:12:41 +0100, "Jon" <[email protected]>
>enlightened us thusly:
>
>>
>>"Austin Shackles" <[email protected]> wrote in message
>>news:[email protected]...
>>> On or around Wed, 21 Jul 2004 09:13:32 +0300, "Pantelis Giamarellos"
>>> <[email protected]> enlightened us thusly:
>>>
>>> >Diesels have a tendency to soil the intercooler's internals with lots of
>>> >black oily and sticky stuff.
>>>
>>> how'd they manage that then?
>>>
>>> AIUI, you go inlet > filter > turbo > intercooler > engine.
>>>
>>> so where does the gunge come from? Unless the turbo's dodgy?
>>engine breather
>>

oops. how did that escape?

--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"Quos deus vult perdere, prius dementat" Euripedes, quoted in
Boswell's "Johnson".

In article <[email protected]>, Austin Shackles wrote:
>
> the word on TDis is that you don't gain a lot from biggering the intercooler
> unless you plan to up the boost as well; conversely, if you want to up the
> boost, you need to upgrade the intercooler to keep the temperatures
> reasonable.

The guy I spoke to on the Allisport stand at Billing reckoned upto 20%
increase with a little pump tweaking and their standard intercooler which
fits into the same space as the standard one.

Only problem was it costs £280. :-(

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

On or around 23 Jul 2004 09:01:23 GMT, Simon Barr <[email protected]>
enlightened us thusly:

>In article <[email protected]>, Austin Shackles wrote:
>>
>> the word on TDis is that you don't gain a lot from biggering the intercooler
>> unless you plan to up the boost as well; conversely, if you want to up the
>> boost, you need to upgrade the intercooler to keep the temperatures
>> reasonable.
>
>The guy I spoke to on the Allisport stand at Billing reckoned upto 20%
>increase with a little pump tweaking and their standard intercooler which
>fits into the same space as the standard one.
>
>Only problem was it costs £280. :-(

There's always a catch, innit. it might be that their intercooler is more
free-flowing or something, but there's a definite limit to how much
pump-tweaking you can do without making it smoke, unless you also up the
boost to get more oxygen in.

I did once speculate about adding O2 from a welding bottle, 'til I worked
out how much you'd have to add... start looking at how much air goes into
the engine: 2.5 litre requires 1.25 litres per revolution as a normally
aspirated thing, presuming a not-too-restrictive inlet tract. run it at say
3000 rpm, you get 3750 litres per minute, at approx 20% oxygen in dry air,
which is 750 litres per minute (if you want that in more conventional
mass-flow-rate units, it's about 28 cfm)

'course, the air's not dry, so you can take off a bit for the water vapour
content, though I'm damned if I know how much. But to make a useful
increase in the available oxygen, you'd have to add something in the region
of at least 100l/min to the inlet tract at 3000 rpm, I reckon. now I don;t
know ho much in litres the big O2 bottles hold, they are, it has to be said,
at about 200 bar, so they have 200 times as many litres as they appear to
contain. The cylinder might have a capacity say 100 litres... in which
case, you'd get 200 minutes-worth at 100l/min. which ain't very long...

granted, at lower revs you'd not need so much to get the same percentage
increase.



--
Austin Shackles. www.ddol-las.fsnet.co.uk my opinions are just that
"My centre is giving way, my right is in retreat; situation excellent.
I shall attack. - Marshal Foch (1851 - 1929)

In article <[email protected]>, Austin Shackles wrote:
>
> There's always a catch, innit. it might be that their intercooler is more
> free-flowing or something, but there's a definite limit to how much
> pump-tweaking you can do without making it smoke, unless you also up the
> boost to get more oxygen in.
>

He told me that the end tanks on their version are smaller than the LR
ones as well as being made from sheet as opposed to cast. The thinner
material and smaller end tanks means they can fit in more core so you
get more cooling.



--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.

In article <[email protected]>, Hirsty's wrote:
>
> Good Luck, let us know how you get on as I might have a go myself
>

Well, the intercooler has now been removed, flushed and refitted. All hoses
were wiped out at the same time. I found a container of 1-1-1 trike in the
shed that I got from I don't remember where years ago so I used that to do
the flushing.

The solvent came out very dirty and left what I could see of the inside of
the intercoler looking spotless, whereas before it was covered in a thick
black oily film.


Net result? Absolutely no difference whatsoever!

I'm a bit disappointed as it seemed as if a lot of muck was washed out of
the intercooler.

Now I've just got to get someone to get me an Allisport one for my birthday
next month to make up for it.

--
simon at sbarr dot demon dot co dot uk
Simon Barr.
'97 110 300Tdi.