On Mar 10, 2006, at 8:55 PM, Zoltan Finks wrote:
So am I to understand that throttle position has an effect on the
metering
of the IP *
Yes.
Also, what is the reason behind the owner's manual instructing us
to pump
the pedal to the floor three times prior to engaging the starter
(for cold
conditions)?
I don't know but I will guess that it is to make sure the linkage
returns and the internals are released from the last shut-down. There
is Motor oil in the IP, earlier models have their own supply which
must be topped off occasionally,( your 1983 uses the oil in your
engine) I think the fuel shut-off can hang up in the off position if
oil has the consistency of toothpaste. Another good reason to use
synthetic oil.
(BTW, yes, I think it says to hold it to the floor after the
three pumps) This sounds like the pumping of the pedal in a gasser
- the
function of which, of course, is to squirt a bunch of fuel down the
intake
to get things going.
To the best of my knowledge there is no fuel enrichment and no
squirting going on. The pump runs off of a camshaft directly, there
is one "pump" per cylinder and the camshaft determines the sequence
of injection.
It seems that you have a genuine interest in how this all works. The
IP is a highly technical device, if you have the desire for a more
technical description, get your hands on an MB engine manual and give
section 07 a good read where you will find more technical info.
Putting it all into words is beyond my abilities, the authors of the
manual, however, have done a wonderful job.
If my hp all-in-one didn't get fried by lightning, I would gladly
scan and e-mail the pertinent pages to you. I haven't checked but I
bet its on the skinnerbox website.
Johnny B.
I Mac Therefore I am
