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Originally Posted by 245d6
Filter has been replaced when I got it and drained all of the fuel to replace with new diesel. Last week, when it was finally allowed to be driven on the road, I did run it out of fuel (tank indicator wasn't working yet). Put some new diesel in, started right up again. Maybe this pulled some dirt from the tank into the filter? First time I drove it i was actually able to get it up to 120 km/h...
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How long was the car sitting? Bet there's still a lot of crud in the tank. Might require several filter changes before it clears up.
Quote:
Originally Posted by 245d6
I'll look at IP belt tomorrow, could be a bit too tight maybe. Is it adjustable without altering the timing? When setting the pump, I thought the position / belt tightness could also alter the IP timing?
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Yes you are correct, usually alters IP timing. That's why 1) Adjust belt tension first; 2) Set IP timing.
Quote:
Originally Posted by 245d6
Regarding injectors: I replaced the fuel return lines with new ones. Looks like 1 injector is leaking at the base where it enters the head, when the engine runs there are some small bubbles coming through. The other one seems to leak at the seal between the body and the injector itself. I'll leave them alone for now as there are no puddles of fuel under the car / on the engine.
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Have you washed the engine recently? Any residual water in the injector wells will bubble and boil off with a hot engine. As will any fuel spilled in there also.
Quote:
Originally Posted by 245d6
One other thing: it gets 13,5 km / liter, around 32 mpg, seems quite okay to mee for a 2.4l diesel?
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Yes, right in the ballpark.
Quote:
Originally Posted by 245d6
Also something to clean and maybe reroute the breather for now to eliminate the possible ''running on oil'', even though it's probably not the problem.
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Doesn't seem like a problem. Why reroute the crankcase breather?
Quote:
Originally Posted by 245d6
Going to fix the cooling system (several sketchy looking hoses) first and then i'll drive it hard for a bit, maybe engine will change a bit  |
Another trick for clearing out carbon: with a hot engine, spray water (spray bottle) into the intake as you rev the engine. You will see the brown clouds of smoke diminish after a few minutes of this. Decarbonizes the rings, ring lands, piston crowns, combustion chamber, and sometimes the intake manifold.
Quote:
Originally Posted by 245d6
Seems strange that fuel starvation could cause smoke, I was thinking it might not be getting too much air but i'm used to gasoline engines and this is the first diesel i'm working on. Curious to figure out what is causing these issues..
So in theory, more fuel shouldn't be a problem? The only thing that will happen is more smoke, as not all of the fuel will be burned, but the engine won't run worse? The only time a IDI diesel can run worse is when there is not enough fuel injected?
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My experiences with a clogged (or clogging) fuel filter is abrupt loss of power at higher RPMs accompanied with grayish-brownish smoke.
Fuel starvation will cause power loss as will air starvation (ex. clogged air filter). Overfueling can damage the engine with carbon/soot buildup. And especially damaging to the environment.