Quote:
Originally Posted by layback40
You are welcome to practice a little science experimentation especially given that you appear to be wise enough to critically evaluate your findings.
I have no idea how sensitive the shock sensors are on say a Saab turbo from the mid 80's. It may be possible to attach one to the injector or the injector line. This would be far more sensitive than the GP idea. Probably not subject to hysteresis either. I am sure you have a better understanding of the properties of audio sensors like this than most. 
What scale was your multimeter on when you got your reading?
At the end of the day though, we have no base line to compare a result to. If you work out some algorithm that relates your finding to the required IP timing for a drip test it could be used as a quick test. How repeatable will it be? Will it vary for a pre chamber full of coke that needs cleaning?
Lots for you to think about! |
Hey layback40 - I added the information that I had found because I had one of those moments when, after reading lots of books, I actually saw something that you "know" is meant to happen happen.
It was a $%^%*$^&# me IT DOES ACTUALLY DO THIS moment - much like the time when the effect of electric insulation was "proven" to me:- at a wedding there was a beer cooler that was live. Some people complained of getting shocks - others didn't. The ones that didn't get shocks were wearing rubber soled shoes... take away the shoes and guess what happend...
...you "know" how things are meant to behave but it is nice to see it for real instead of just words in a book.
Anyway going back to the information I posted:-
This is a really basic simple observation - like I said I couldn't even get hold of a thermometer.
I plan to have a chat with a friend who works at a university to see if I can get access to some real instrumentation that will help me to compile some reliable measurements and calibrate the output of the glow plug.
If / when I get to that stage I'll start a new thread and stop bothering the good people who have pointed out that this information is off on a bit of a tangent from the original subject content of the thread. (I hope that a link to this new thread - if I write it - will be tolerated).