Carbon/Ash in extension manifold?
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Carbon/Ash in extension manifold?
I pulled off the Upper and lower intake manifolds saturday to clean the "6-ports". Found that 2 of the intake passage ways in the extension manifold and the attached ports in the lower intake manifold were coated with black crusty crud. The other 2 passage ways were nice and clean.
Anyone else have this? Anybody know what would have caused it. Normal or the sign of something not right?
The 2 that were dirty were the same 2 that the secondary injectors sit in. The air bleeds was all caked with the crap too.
Anyone else have this? Anybody know what would have caused it. Normal or the sign of something not right?
The 2 that were dirty were the same 2 that the secondary injectors sit in. The air bleeds was all caked with the crap too.
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I am glad to find out that I am not the only one getting this.
Does anyone know why it only happens to the secondary ports?
My secondary throttle plates seemed to be opening a little late and it may have been a factor (I have now corrected it).
I also wonder if eliminating my EGR valve would help.
Does anyone know why it only happens to the secondary ports?
My secondary throttle plates seemed to be opening a little late and it may have been a factor (I have now corrected it).
I also wonder if eliminating my EGR valve would help.
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