“J&L Autoworks” <@J_L_Autoworks>
Hi gang,
The idle quality thing has taken a new turn. I was talking
with Ted about flow matched injectors and I recommended that he find a Bosch
specialist that can rebuild or exchange jis injectors. He did so and I made
a few calls myself. He FOUND one and I did NOT. He was kind enough to pass
along the info and I exercised my art of acquiring knowledge.
I called a friend of mine in a Porsche/Audi independent shop and
asked him about an injector matching specialist. He said he didn’t know of
one. I was surprised and asked him why not. He said that the normal
standards for the flow rate in rebuilt and new injectors is close enough
that poor idle and running quality is likely to be worse because of all the
other variables such as inductive current loss through old injector and
engine harnesses, improperly operating emissions equipment and, of course
things like sticky advance mechanisms, bad vacuum lines and the like. So the
more familiar I am getting with EFI systems that I get, the more I
understand that most EFI setups are way more exact than the equipment that
they run.
One other thing that I feel is an inherent characteristic is the
erratic seemingly random tremor. Is anyone else out there thinking the same
thing about it? You’re sitting there at a light, in gear, foot on the brake,
the car is smooth as silk, and then it just kind of shudders a little. Not
enough to be concerned about, but a strange falter at odd intervals. I think
that the design of the head has some valve overlap that at low rpm creates
some confusion in the air/fuel flow and literally makes it hiccup. That’s
what I think anyway. Okay, engineer guys, go to it…but use small words
for us seat of the pants folk.
Anyway, there should be some way that you can measure inductive
electrical loss from cracked and brittle harnesses. I am not trying to
commercialize the aspect of this, but is there any more investigation going
on into the harness reproduction? All of the '78-'87 cars that are here
could probably stand one and I know I’d like to be able to put one on a
customer’s car without it breaking the bank. Steve at Supercat has the
connector kits.
The art of acquiring knowledge as I see it is to be able to draw out
someone who is passionate about what you want to know by asking for his
expertise. You generally learn a lot and get practical info as opposed to
generic facts. I know the quickest way to get me motivated is to ask how I
would go about a certain type of repair. Look at what you are trying to fix
and figure out what you don’t know. Ask intelligent questions that show that
you put forth effort first. And whatever you do, if you ask him how to do
something, do NOT turn around and argue with him.
I had a gentleman come in a couple of days ago wth enough facts that
I was able to make a most likely diagnosis for him. I sent him home with a
relay and instructions and his car was running in ten minutes. He got
knowledge, saved a towing bill, I felt like a hero and acquired a grateful
new customer. Ain’t it cool?
Cheers,
Jeb
J&L Autoworks
1335 Lutztown Road
Mechanicsburg,PA 17055
717-258-5524
@J_L_Autoworks===================================================
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