100 85% bioethanol E205 in carbu

crude vegetable oil, diester, bio-ethanol or other biofuels, or fuel of vegetable origin ...
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Flytox
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by Flytox » 28/09/11, 23:19

This time, it may be the torque screw wealth / throttle opening must be re-set to remove the hole just above the idle. For this, start by speeding up your slow down before traffic (+ 100 min turns?). You will return after when you have found the best wealth.
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by yannko » 28/09/11, 23:32

Ok thanks for this info Flytox. The wealth screw still influences when acceleration at low speed?

Otherwise the idle is nickel, when it shifts in regime, and that I restart, the idle is stable and without fault. So I try tomorrow what you have recommended me.

A priori it would be necessary to enrich or impoverish as it is at first sight?
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by Macro » 29/09/11, 08:24

The membrane of the recovery pump may not have appreciated ethanol. Normally engine stopped when you operate the gas pedal there must be a small fuel spout that flows directly into the drain. If it is not the case check its good supply and the good condition of the diaphragm or pump ..

The wealth screw plays on the slow motion ..

How much time did you have before that it started to merder and by what outside T ???
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by yannko » 29/09/11, 09:09

Hi Macro, thank you for your help.

I will check the pump recovery, I have a new membrane in the refection pouch carbu (I had not changed, in fact I just kept the parts in case the ethanol would eat all over it).

In fact it is put to shit recta when I change the sprinklers by bigger (+ 38% to respect the stoichiometric ratio). On this, I had an empty battery, a carburetor winding without needle that has all inundated me 2 or 3 times the time that I see it. And finally, I changed gasoline filter and accelerator cable (it remained 2 strands on the whole :| ) to start on a good basis.

This morning, I left to restart the car, without touching anything in the first place. This time, it's the cat, because even when cold, it does not hold idle at all, and stalls systematically. Interesting thing: the choke lever does nothing at all (even by manually pulling the choke in the engine block) apart smother the engine ???

I then hack the wealth screw, without result on my side. I am thinking of reassembling the original jets this evening, because I am completely drying up (it will be practical in the night street "mrgreen :).

What to say, maybe the floats are blocked, that they sink in the essence (small hole invisible to the naked eye?), But good after a night of rest anyway ...

I will put a video, the engine runs oddly (recurring cycles that repeat: fast, then slow kind chokes, then fast, and again he chokes ...).

See you soon for new misadventures : Mrgreen:I go to work :frown: .
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by Macro » 29/09/11, 15:57

Have you touched in advance ???
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by yannko » 29/09/11, 16:01

No, not yet, I decided to do things one by one to avoid chaining problems, so the lead is the same as SP95.
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by Flytox » 29/09/11, 18:40

yannko wrote: The wealth screw still influences when acceleration at low speed?

This will slow down the 1 / 4 around the throttle opening and decrease as the throttle opens from idle.

yannko wrote:A priori it would be necessary to enrich or impoverish as it is at first sight?


Chai not what you changed in the carb, there are jets of fuel ... and air .... If you have one or more in the cabbage, it will bug somewhere, just above the idle for example.... :|

If you have not changed the emulsion well and the associated air nozzle, it may not work properly with a different density fuel (different fuel height in the well) and air holes calibrated for gasoline (not the same ratio for stoichiometry). You may be able to change the diameter of the air nozzle and / or traffic the height of the emulsion well in its housing (some screw on several mm).

http://quanthomme.free.fr/pantone/paged ... avid11.htm
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by Flytox » 29/09/11, 18:49

You should try to disconnect the fuel supply at the carburetor and put a starter stroke. It must spit copiously after a second or 2 .. You may be dry with a fuel pump in bulk. : Mrgreen:

Uh ..... do not test on hot engine ....., we do not like Yannko rotis. : Mrgreen:
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by yannko » 29/09/11, 23:25

Hi Flytox :D ,

Ok so today I first tried to get the car home -> it was difficult even when cold. We had to press hard, tweaking starter, starter, and fairly sustained accelerations. Suddenly, idle stabilization, car nickel, hop it goes like a flower :!: : Shock:

Then I redemonte the carbu (it will do that the 10eme times : Evil: ), I control the tightness of the floats. No air bubbles in the water, and they float nickel in every way possible and imaginable.

Finally, I put the two sprinklers back, as we go back to the starting box : Mrgreen: . Adjustment of the richness and idling again afterwards.

The car runs very well (maybe even a little better than the big sprinklers). In short, I leave warm well as it should (I do not tell you what food I have to slow down since the beginning, it costs expensive and it pollutes to be an experimenter : Mrgreen: ), then I take the risk of going to the assault of my street and its side at the turning : Mrgreen:.

This time I take it gently and backwards. It goes up well, times nickel, and .... crack, she stalls : roll: .

Well, I don't know too much anymore, I have to give a little gasoline I think (I had 11 to 12 L, plus the small remaining base, even if I do not think for a moment to be dry, who knows, with all that happened, the gasoline floods, and what I burned in slow motion a dozen times, ...). The gauge is low, but the "bingo fuel" light is not on : Cheesy: .

Voila, after I do not know what to do, except the gas pump, as you mention (I could not test the fountain of gasoline because it was dark of course : Mrgreen:), I am short of ideas.

How does a Facet work? I completely turn the old pump (she has 22 years I think ...) and I put it in the place? How can I know if the pump is beating, or if the membrane is torn?

Thank you guys for your help : Mrgreen: !
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by SixK » 30/09/11, 00:30

The other method with original jets + ethanol is to clamp the air supply.
Otherwise + 30% on the size of the jet ca seems to me a bit much.
To find the right jet, you have to take several and increase little by little (+ 10%, + 20%, + 30%, ... for example) the size of the jet until you find the one that allows you to have a correct engine usage over its entire speed range.
For the setting of the carbu, there are docs circulating on the net.
From memory it is necessary to tighten thoroughly the screw of richness then to open it to find a slow idle approximately stable.
Then the idle setting, it is necessary to raise the idle to the highest until the screw does not play any more on the mode and to go down again until the engine coughs. The right setting is between the 2. :)

Of course, if there is too much air or not enough air to arrive at the engine, you will not be able to adjust much.

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