hi all, every single time, my car starts losing power after 3-5k miles, lots of smoking too. Definitely incomplete combustion. No matter the WMO - diesel/kerosene ratio it happens around 3-5k all the time.
I found out the reason: the injectors heatshields get plugged;
After replacing them power is restored (temporary).
That was last time, all were equally plugged. This time 2 were ok'ish, and the other 2 were plugged like above. What was the difference? The 2 cylinders with the fouling had lower compression (325 vs 400 psi)! Made me think, with the IDI the air that's forced in the pre-chamber is used to mix fuel and air, see for example this old bosch movie:
Less compression = less mixing, worse combustion
I will put a turbo on it, low boost (5 to 10psi), and see how it fares!
I found out the reason: the injectors heatshields get plugged;
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After replacing them power is restored (temporary).
That was last time, all were equally plugged. This time 2 were ok'ish, and the other 2 were plugged like above. What was the difference? The 2 cylinders with the fouling had lower compression (325 vs 400 psi)! Made me think, with the IDI the air that's forced in the pre-chamber is used to mix fuel and air, see for example this old bosch movie:
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Less compression = less mixing, worse combustion
I will put a turbo on it, low boost (5 to 10psi), and see how it fares!