Who said it started hard??
I agree with Hermits comments in his last post.
To clarify, the fuel and air are not mixed IN THE INTAKE MANIFOLD like a gas engine, they do, of course, mix when the fuel is injected into the combustion chamber.
Yes there is an injection period not a moment, the same can be said of a gas engine spark, that later being pretty much a constant length of time and the former changing with power output.
Injection begins BTDC around 5 degrees and ends when it ends, shortly after TDC
Hermit:
After talking to lots and lots of folks I have come to realize that most (you appear to be an exception) don't have a clew on how diesels work and think it is just a gas engine that uses a different fuel. I try to emphasize some of the more distinct differences to get my point across. I was also not trying to specifically diagnose the problem but provide the background principals so the problem can be understood. I have this forehandedness problem and am pretty sure that when the excriment hits the rotating breeze production device the poor sap will not have SBO.com to extract his 4th point of contact from the incenerator.
So yea, I call momentary black smoke and oil in the exhaust on cold start an injector problem. Course I would also know if she was cranking "at the right speed" which would also cause the same thing and be an electrical power to the starter or starter problem. You have to have all the facts to make a good diagnosis. Unfortunatly most of us are not mechanics and don't know what facts to report. Had a case once where the engine would not start on cloudy days no mater the temp. Seemed that the clouds where keeping the engine from starting.
The batts sat in a south facing locker and the locker got warm on sunny days. Yea, he just needed a new bat and the terminals cleaned but diagnosing the symptoms was a bit convoluted.
I agree with Hermits comments in his last post.
To clarify, the fuel and air are not mixed IN THE INTAKE MANIFOLD like a gas engine, they do, of course, mix when the fuel is injected into the combustion chamber.
Yes there is an injection period not a moment, the same can be said of a gas engine spark, that later being pretty much a constant length of time and the former changing with power output.
Injection begins BTDC around 5 degrees and ends when it ends, shortly after TDC
Hermit:
After talking to lots and lots of folks I have come to realize that most (you appear to be an exception) don't have a clew on how diesels work and think it is just a gas engine that uses a different fuel. I try to emphasize some of the more distinct differences to get my point across. I was also not trying to specifically diagnose the problem but provide the background principals so the problem can be understood. I have this forehandedness problem and am pretty sure that when the excriment hits the rotating breeze production device the poor sap will not have SBO.com to extract his 4th point of contact from the incenerator.
So yea, I call momentary black smoke and oil in the exhaust on cold start an injector problem. Course I would also know if she was cranking "at the right speed" which would also cause the same thing and be an electrical power to the starter or starter problem. You have to have all the facts to make a good diagnosis. Unfortunatly most of us are not mechanics and don't know what facts to report. Had a case once where the engine would not start on cloudy days no mater the temp. Seemed that the clouds where keeping the engine from starting.
The batts sat in a south facing locker and the locker got warm on sunny days. Yea, he just needed a new bat and the terminals cleaned but diagnosing the symptoms was a bit convoluted.
