Adjust idle on Mack 673?

jjmartinez1982 said:

I’m trying to find the spot in the TMs where it shows how to adjust the idle on the diesel engine but I’m coming up with nothing! Does anyone know how to do this? Current idle speed is just at 500 rpm.


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porkysplace said:

There some TM''s that cover Macks in post #11 of this thread.

[h=1]Mack Fuel system TM???[/h]

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AMGeneral said:

It should be between 550 and 650 rpm for a 673 if I remember correctly.

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