B
Badger
Guest
"MVP" <mr.nice@*nospam*softhome.net> wrote in message
news:[email protected]...
> since fitting new injectors (recon) to my 2.5 n/a there seems to be
> more smoke of the black variety.
> This is too much fuel/not enough air?
Probably.
> The air filter is coming up to a year old, I don't expect that's a
> problem but I'll pull it out and check anyway, assuming it's ok then I
> need to adjust the pump? how?
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.
> while on the subject I'm intending to fit a snorkle soon, I assume
> this will restrict the airflow to some degree?
Possibly, but if opening faces forward you might even get a little ram
effect if you go fast enough!
> I was also thinking of putting a K&N as I understand this had a
> free-er air-flow and would perhaps counteract the restriction of the
> snorkle pipework?
> I also like the idea of using a K&N and cleaning it when required
> rather than throwing away and replacing paper elements.
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.
