black smoke = over-fuelling?

Probably.

It's possible that the injector lift pressures are set too low and they are opening at the lower pressure and hence allowing slightly too much fuel in. It doesn't take a lot of fuel to give black smoke. My preferred option would be to get the injectors reset by whoever supplied them, explaining the fact that there wasn't black smoke beforehand. If you do wish to adjust the pump however, there is a screw and locknut (normally lead sealed) half way along the side of the upper chamber, side nearest the engine block. Out increases max flow, in decreases.

Possibly, but if opening faces forward you might even get a little ram effect if you go fast enough!

Sound theory, if it works. I find that oiled filters such as K&N's tend to quickly choke to a lower flow than a std element does, even though the initial flow is higher. Badger.

Mark Hi,

I would say that your new injectors are letting more fuel into the engine (since they are new and unblocked and function as they were supposed to).

As for the snorkel I can only say that on my 200Tdi engined Discos it actually assists performance and lowers the fuel consumption. It appears that the longer induction helps on torque. (I remember reading something about it but it is supposed to only work when the increase in the induction happens between the intake manifold and the intake valves. Any comment from fellow listers specialized on this topic would be extremely appreciated) The obvious thing though is that the snorkel lets much colder and cleaner air inside the air filter housing when compared to the air that is usually drawn inside the air filter from inside the engine compartment. And as we all know colder air is richer in oxygene and therefore provides better combustion and better performance and lower fuel consumption (if the air/fuel ratio is not changed) On more bonus (already quoted above) of fitting a snorkel is that your engine will be breathing cleaner air and this will have a very noticeable effect you how frequently you will be changing your air filter elements. Fitting a more freely flowing air filter element has also helped a lot on both my engines. I keep full fuel consumption records since the day I bought my cars and the more freely flowing air filter (RamAir) together with the snorkel does make a difference of about 4 to 5 per cent. In order to check that I had disconnected the snorkels in the past only to reconnect them since the drop in performance was immediately noticeable along with the increase in fuel consumption and the speed of soiling of the air filter element.

Two more things that have also made some difference in the way the engines feel and perform were the fitting of the FuelMax thingy (two pieces of very strong magnet connected with a tie-rap over the fuel line a few inches before it arrives to the fuel pump and adding SLICK50 to the oil once every

Take care and HTH Pantelis

"MVP" wrote in message news: snipped-for-privacy@4ax.com...

is the snorkle a ram type such as safari or a more conventional muchroom top?

Is the ramair filter a direct replacement for the conventional filter?

I looked at the fuelmax, £50 seems alot for some magnets, could you not just buy some magnets and get the same effect?

Regards. Mark.(AKA, Mr.Nice.)

You could just not buy some magnets, and still get the same effect!

Mark Hi,

both vehicles were factory fitted with the Mantec rearwards facing metallic snorkel. I have a huge dislike for Safari Snorkels mainly because of the HUGE hole you have to drill to the side of the fender and also because of them being made of plastic. My Mantec made snorkels have withstood extremely bad treatment (remember both my vehicles are Camel Trophy evented veterans having been used on the event itself and then as training and selection vehicles). Despite them being fitted for 12 and 11 years now they are still going strong and have absolutely not problem with UV sun rays etc as a plastic item would have.

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The ramair filter actually requires a modification to the air filter housing's cover since the very early type of this cover was incorporated with the air filter element itself. The RamAir (and also all other similar types and brands of free flowing aftermarket air filters) does NOT have this incorporated cover. So you have to remove it from the old factory made paper type air filter element and then take it to a lathe so that they open up its internal diameter by 0.8 of a mm. This allows the free flowing air filter element to be easily positioned inside the cover only and you can fit it without any other problems.

Is that every 60 decimal 000 km or every 6*10^4km? B-)

I'm not convinced this "magnetic effect" thing is complete snake oil, but the effect doesn't last long so in the case of water you should fit them on the fed to the HW cylinder not in the rising main as the effect will have worn off in the CW storage tank...

How ever the field strengths are quite high so your average science class magnet won't work. Maybe look at the cobalt(?) serious, have your finger off, magnets that are on eBay?

Dave Hi,

it is sixty thousand Km.

Take care Pantelis

Is that every 60 decimal 000 km or every 6*10^4km? B-)

I'm not convinced this "magnetic effect" thing is complete snake oil, but the effect doesn't last long so in the case of water you should fit them on the fed to the HW cylinder not in the rising main as the effect will have worn off in the CW storage tank...

How ever the field strengths are quite high so your average science class magnet won't work. Maybe look at the cobalt(?) serious, have your finger off, magnets that are on eBay?

-- Cheers snipped-for-privacy@howhill.com Dave. pam is missing e-mail

Yes, there's nothing ferrous in diesel fuel! TonyB

Tony Hi,

supposedly the strong magnets alter the orientation of particles and ions in the fuel's structure. I do not know whether it is true but on the other hand it is true that they did make a difference together with the more freely flowing air filter.

Take care Pantelis

On or around Sun, 6 Mar 2005 04:15:08 +0200, "Pantelis Giamarellos" enlightened us thusly:

sounds like something ideally suited for growing roses...

the free-flow filter is much more likely to affect things.

You did test each item individually, didn't you?

Absolutely sure to attract bugs. BTW have you noticed that roses blossom much better when you throw or better still burry a few iron nails around them????

One of the best things you can do to also upgrade the sound of your Tdi.

Take care Pantelis

Actually I have first installed the larger, full frontal area, intercooler, then adjusted the fuel pump and turbocharger's wastegate operating pressure.

Then I have fitted the magnets and lastly have installed the free flowing air filter.

The biggest difference performance wise was noted with the adjustment of the fuel pump and wastegate, and then with the installation of the free flowing air filter.

The intercooler has assisted VERY MUCH in maintaining performance during the HOT Greek summer days.

The difference (consumption wise) the magnets have made by themselves is around 1 to 2% according the fuel consumption figures. It made no "seat of pants" difference performance wise but the general feel of the engine's way of operation was a bit smoother.

Take care Pantelis

P.S. Slick 50 made the most spectacular change in the way the engine feels. It is significantly smoother and less noisy on tickover. Some people hate it but I use it and have used it on ALL my cars. It always makes the engine feel smoother and more free revving than without it.