Citroen AX diesel 1.4

[MichelM]

Hello Crispus
I do not know about the AX but on the Mercedes it is purged on its own, without doing anything, and the bubbles are rather the sign of an air intake in the fuel supply from the fuel tank (a split pipe or cracked?). For the dirty filter I do not think it makes bubbles either gives a loss of maximum power, a limitation.
Nice editing, but apparently too much water that can go up in the engine and it goes wrong when there is too much ...
Good luck

Michel

[RolCopter]

Hello everyone

Thank you Crispus for my failing vision.

I confirm michelm's comments

it is purged by itself, without doing anything, and the bubbles are rather the sign of an air intake in the fuel supply from the tank (a split or cracked pipe?).

Good work

[crispus]

Hello everybody

I confirm michelm's comments

it is purged by itself, without doing anything, and the bubbles are rather the sign of an air intake in the fuel supply from the tank (a split or cracked pipe?).

Indeed, despite the replacement of the filter, the air bubbles are back, and suddenly with.

I found a disconnected pipe near the gauge well, not mentioned in the RTA, probably the tank vent.
But that's not the cause. It remains to follow the path of diesel. It is not won...

Another recurring, unrelated problem: oil leaks through the crankcase seal. After fitting a new gasket, it oozed even more. After spreading with the "blue seal", it still leaks near the vacuum pump.

All these quirks of girl do not facilitate the development.

The "gurgling" at the bottom of the reactor is less noticeable now that the trap has been lowered, but I'm not sure the rod is quite dry.
In the end it worked better at the beginning, with a water level too high, matching a folded tube that allowed only a drip.

I am thinking of putting a restriction on the water supply to find these conditions. Kind of "tip bic", like André on his carburetor.

To be continued...

[crispus]

Hello,

Some problems solved but still questions!

1) I think I found the origin of the air bubbles:
The fuel oil outlet hose was cracked and poorly tightened. It's better. Still, if the air came through this is also because the diesel was struggling to reach the pump, so I'm not unhappy to have changed the filter.

2) I have also replaced the diesel fuel hoses that have cracked one after the other. As André pointed out, diesel is aggressive for rubber.
Needless to say, it's still shredded for calculating conso since I walked 160 km with cracked hoses ... The gas oil dripping to rinse the oil , see below...

3) Big fright and little discouragement:
To eliminate the oil leaks I dismantled the cylinder head cover and re-spread with "blue gasket": disaster, in 50 terminals, nearly 3 l of oil squirted out from the back and flooded the underside: water circuit , exhaust, gimbals ...

It is the presence of a trickle of oil in the yard that alerted me to the return home. Evidence that fortunately there was still a little oil background!

New disassembly and conclusion: from the beginning this joint is too long and tends to come out of the sump groove. I removed 2 cm long by cutting it at 3 different places, and then I turned it all over. Verdict soon, but at least it does not spill anymore.

4) Let's come back to our heads: the goal was above all to limit the flow of water entering the reactor to eliminate this persistent "glo-glou" ...

Here is a tip bic stripped of its ball, enchassée in a nylon peg:


All nested in the water inlet of the reactor:


The amount of steam produced is lower, the setting seems optimum up to about 80 km / h. Beyond it is necessary to support more than before.

But while this small amount of steam proves that the water level has dropped, how to explain the persistent "gurgling"?

I wonder if the crankcase itself does not produce too much water: when I remove the cap on the breather side it throws large drops of water!

I think I'm going to get it to suck in "clean" air, plus the crankcase fumes. Too bad, the idea of ​​"enhancing" the oil vapors I liked ...

To be continued...

[RolCopter]

Bonjour à tous

Crispus on my two G system vehicles I take the air for bubbling deviate some of the engine degassing, indeed if you connect the breather directly to a bubbler or a GV there is too much pressure and flow.
For now none of my vehicles have had a reactor that hangs for lack of bad suction gas Pantones but I do not despair.

[TDRA2004]

Hello Crispus
Your engine is equipped with a Lucas pump, very sensitive to the slightest air intake.

Here are some ways to find the origin:
Thermostatic capsule seals of the heater.
Manual inflator
Connection clamps
Good luck

[crispus]

Hello everybody

I did not wait for the end of the tank, I refuel after 600 km traveled.

Average consumption: 4,29 l / 100.

Honorable if one takes into account diesel leaks on the first 200 km.

This time the situation is getting better: diesel, oil and air have finally found their respective paths, and driving with the titine is again a pleasure ...

As long as it lasts, at least until the next full

To be continued...

[crispus]

Hello,

I decided to draw air to the reactor instead of the crankcase gases.

Here is the list of modifications.

Install an air intake hose on the exhaust manifold. I do not know how to wear it in time, it seems a little fragile but I'm in a hurry to try.


Rock wool will be used to limit losses and better maintain the pipe in place


Reversing the copper manifold, butt piercing and adding an extension to the outside. A bolt condemns the old internal arrival.


An impurity filter for a drilling pump will filter the air drawn in by the reactor. It is now hidden in the wing: no place under the hood ...


The U of the breather has regained its place, the steam entrance is slightly behind.


First test tonight: almost no depression at idle, rather "soft" behavior compared to usual. The depression may not be enough.

I have just dismantled the throttle mounted on my first assembly on the air filter inlet, because it had gotten "across", which could have caused overconsumption ... But now that I no longer have the crankcase gases which "push" the air into the reactor, I wonder if it shouldn't be put back in place.

Otherwise, given the heat of the air filter inlet pipe, there is a lot of steam circulating. It remains to increase the quantity. I have already raised the water level, it may be necessary to start again.

To be continued...

[PITMIX]

Hello
I get 140 ° C at the reactor outlet at the moment without preheating the air at the inlet.
I think your piece of copper on the collector is useless.
Or at least it is not essential. You must be 180 ° C reactor output, it is useless in my opinion. Do not forget to put a small mob air filter.
But I have a question.
Do not have a windsock between the air filter and the intake manifold?
No vapors breather there you necessarily need a venturi or a component to force the air to be sucked through the reactor. The windsock is convenient to install a venturi.
If you can make a small column of water it is convenient to measure the suction of your system.
Good bricolade ...

[crispus]

Hello everybody

Do not have a windsock between the air filter and the intake manifold?

No, as the pictures show, there is no manifold, but 4 independent intake pipes in the air filter cover. It did not help me ...
___

I made a trip a few days: the conso has fallen under the fateful bar 4 3,94 liter l / 100 on 1000 km.
She "could do better" since the record was 3,8 l / 100 last summer without pantone, but with WITH ...

Not yet significant, but encouraging. Part of the journey has made in the rain where the reactor is less effective (despite the addition of adhesive reflective to minimize losses) and 200 km express road / motorway.

If it is more sober, the car has less fishing than when it swallowed 3 l / 100 water. Conversely this time she was content with 2 liters of water about 1500 km

In short, more adjustments to plan ... The important thing is never to despair.

That said, I think I will end up abandoning the hollow copper rod to test a more "traditional" assembly. If only to be able to check whether the lack of efficiency comes from the copper or from the quality of the reactor assembly.

To be continued...