3406b pump mod help!!

Sorry I have a slow scanner and don't have time to scan/upload pics from my manual. You can take apart the AFRC and put it back together with the same parts if you just wanna look at it. Not that complicated. Just don't lose any small o-rings! And make sure to slip the nailhead looking rod back over the forked lever of the servo inside the gov. hsg. when you put it back together.

It helps to have a flashlight and small mirror to see around in that tight area.

If you have a nice parts guy at CAT they can email you pics and diagrams. You can buy a service manual too like I did.

 

Simple way to block it off without spending any money is to just cut the end of the afc shaft off, this will disable the rack limiter.

 

You'll just cut the end of the rod off, which looks like the head of a nail.

Yes it will smoke!

 

It will depend on how you drive it. At first your mileage will probably drop until you learn to handle the extra HP.

 

It is no different than the block off plate, both disable the rack limiter.

 

All the AFRC does is delay the fuel until there is a proper amount of boost for a cleaner burn.

Disabling it just lets you give it too much fuel until the boost catches up which might be 2-3 seconds. It won't affect mpg noticeably.

You could leave the line to the manifold or remove and plug.

I like the extra room you have when the whole AFRC is gone.