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Diesel Service
Diesel Service, Technician
Category: Heavy Equipment
Satisfied Customers: 133
Experience:  25 years experience, on highway tractor trailer
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rack adjustment for a 4 cyl detroit diesel

Customer Question

rack adjustment for a 4 cyl detroit diesel
Submitted: 5 years ago.
Category: Heavy Equipment
Expert:  Diesel Service replied 5 years ago.
HelloCustomer is it a 4-53 and what exatley are you trying to adjust the amount of rack travel at the govenor, or the arms at the injectors??
Customer: replied 5 years ago.
yes it is a 45 3 and i am trying to adjust the fuel nozzel, i need to know it needs to be depressed.
Thx
Expert:  Diesel Service replied 5 years ago.
Hello again, are you looking for the timing dimension, in other words the injector height? If thats what you need I'll need the number on the side of the injector, an example might be S55 or S70.
Customer: replied 5 years ago.
yes the fuel nozzel height, and how to adjust it.
thx
Expert:  Diesel Service replied 5 years ago.
What is the number on the body on the injector?
Customer: replied 5 years ago.
50
thx
Expert:  Diesel Service replied 5 years ago.
Could that be an S50? Check the others
Customer: replied 5 years ago.
yes
thank you
Expert:  Diesel Service replied 5 years ago.
ok hang on, I'll see what I've got for specs, I'll get back to you shortly!!
Customer: replied 5 years ago.
thank you so much. You are giving us the information that we have been looking for!!!!!!!11
Expert:  Diesel Service replied 5 years ago.
Alright boys, had to blow the dust off of that book, Turbo and non turbo engines, injector height is 1.460" timing gauge # XXXXX or equivilent, bar engine over until the exhaust valves are all the way down and set the injector on that cylinder. Hope this helps you.
Customer: replied 5 years ago.
now i need to know if the rocker need to be in the upward or downward position. thx

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