Overhead adjustment

[kman500hp]

My 7.3 01 psd has 149,000 miles on it. I have an 80hp superchip. My mileage has been terrible with the chip installed. Would it be a good Idea to have the overhead adjusted? Truck seems to run ok no ball of fire but looking for mileage.

 

[scheid6996]

is that all u have is the chip? no intake or exaust? cus u should get better mileage with anything u do for performance on a diesel, its not like a gas truck, when was the last time u changes ur fuel filter?

 

[JLDickmon]

My 7.3 01 psd has 149,000 miles on it. I have an 80hp superchip. My mileage has been terrible with the chip installed. Would it be a good Idea to have the overhead adjusted? Truck seems to run ok no ball of fire but looking for mileage.

are you talking about the factory overhead Lie-O-Meter?

 

[CSIPSD]

There is no way to ajust that... once you install a chip or programer its off... Hand calc is about it now...

 

[dzl_x_4x4]

That is very strange, when I installed (80hp) my Superchips I got 2-3 MPG better17-18MPG and if you go by the lie-o-meter it says 21MPG (it used to be dead on if you reset it after each tank) when I run on 110HP setting lie-o-meter says I get closer to 24MPG. When in actual I get 16-17MPG (driving habits ).

The Overhead is useless after a Superchip, just us it for a compass and Temp. They will still work

 

[kman500hp]

Valve adjustment

I was reffering to the valve adjustment. Not familiar with the 7.3 engine is it adjustable?

 

[CSIPSD]

I was reffering to the valve adjustment. Not familiar with the 7.3 engine is it adjustable?

No ajustment nessasary. Change the filters, Fuel, Oil, Air... drive the hell out of it.