TBI/EFI folks ever noticed this?

[6872xtc]

You feel or you think?

I know that an electric motor, (the starter) pulls more amps when trying to get to speed , than maintaining speed. That has been proven many times over. So forcing the starter motor to grunt from a dead stop 2 times, puts more heat into the windings and the solenoid. It puts more wear on the bushings from the extra torque required to initiate cranking of the engine and get the mass rotating.
If watch the dome light dim and then get brighter when you start the engine, this is an indication of the amp draw incurred by the accelerating the engine to cranking speed from a dead stop.
It's easy to prove that it takes more amps to crank over a cold engine vs a warm one. Is it possibly due to just the viscosity of the oil? Not sure.
So I THINK that it's easier based on my years of experience. But I have FELT how much resistance difference there is to turn a transmission with cold oil vs warm oil. And the starter has to turn that too, except if you push in on the clutch.

 

[black dawg]

I a cold climate you probably have to do my technique times X2.

No.....they start in basically in the same number of revolutions at 50 degrees as they do at 10 degrees. Messing around cranking a little and stopping can end up with a loaded up engine, maybe to the point of a no start.....at cold temps. See this happen every winter with older fuel injected stuff.

 

[1-ton]

No.....they start in basically in the same number of revolutions at 50 degrees as they do at 10 degrees. Messing around cranking a little and stopping can end up with a loaded up engine, maybe to the point of a no start.....at cold temps. See this happen every winter with older fuel injected stuff.

Have you ever looked down into a TBI as the starter motor was engaged with the ignition in the ON position to see what actually happens?

 

[70jimmy]

Mine I turn the key to the on position, wait for the fuel pump to run and shut off then start. But my pump is frame mounted.

 

[black dawg]

Have you ever looked down into a TBI as the starter motor was engaged with the ignition in the ON position to see what actually happens?

Yes, I have looked into one while the engine was cranking. At cold temps (like 10 deg or less) the initial fuel that comes out of the injectors while cranking is huge, and starting and stopping cranking (causing this to happen several times)can end up flooding the engine. Usually if the min air adjustment is adjusted correctly this wont happen, but factor in sloppy injectors and or crappy tune up parts, and things start to get iffy. And yes, at these cold temps I have personally seen a completely healthy set up get flooded to the point of a no start by following the crank a little then stop, then crank again.

 

[1-ton]

Yes, I have looked into one while the engine was cranking. At cold temps (like 10 deg or less) the initial fuel that comes out of the injectors while cranking is huge, and starting and stopping cranking (causing this to happen several times)can end up flooding the engine. Usually if the min air adjustment is adjusted correctly this wont happen, but factor in sloppy injectors and or crappy tune up parts, and things start to get iffy. And yes, at these cold temps I have personally seen a completely healthy set up get flooded to the point of a no start by following the crank a little then stop, then crank again.

I think starting a vehicle is very technically challenging effort that needs more debate and argument to settle.

 

[6872xtc]

I think starting a vehicle is very technically challenging effort that needs more debate and argument to settle.

That's what I thought, but you don't like some of the information being shared here. You seemed to question responses, and I thought that you wanted honest answers. I have seen some of the same things as @black dawg .

And this isn't what the original post was about.

 

[1-ton]

You seemed to question responses

I just want to argue every little statement anybody makes because arguing is more fun than agreeing with anybody on a discussion forum.

 

[dyeager535]

I just want to argue every little statement anybody makes because arguing is more fun than agreeing with anybody on a discussion forum.

Wrong.

 

[1-ton]

Wrong.

Nobody's going to tell me that grass is green and the sky is blue without getting an argument from me about what color it is.

 

[imiceman44]

Dyeager was agreeing with you that it's more fun to argue.
So which is is it ?
Argue or agree?

Nobody's going to tell me that grass is green and the sky is blue without getting an argument from me about what color it is.