3406e injector replacement

probably the easiest thing to do opening up the motor......I'm Learning myself to finally work INSIDE the motor- CAT suggests to replace the Cups also(cheap) when doing injectors.....Run an overhead and your done

 

You need a height gauge to set the injectors. Over head is an easy procedure. I can't remember the height gauge part number but any CAT dealer will know what your talking about. Be sure that the injectors seat by hand, don't pull them down with the hold down clamp.

If you want the sequence and torque specs I can post them but it's easy to find

 

Which injectors are you calling low hp? 57's?

 

You need to make a list of the new trim codes,unless your running 5232 or the 6 what ever it is codes.

 

55's are 3 sizes bigger. What turbo do you plan to run with them?

 

Cups are a Cat shop scam. They're stainless, I don't know how you would ever hurt one. For the last 10 yrs I,ve just changed the o-rings and put them back in.