Injector questions

[Angie]

hi all, if there is a place other than here to post these Q's, please redirect this thread. I have looked around in tech section and can't find answers to a couple questions. ( i am sure these have been asked in here before) but haven't seemed to find any threads on this.

How do you know when your injectors are done? I have 4.0 90tm and in stages of rebuilding. I have taken carb cleaner to the injectors and sprayed them out till the cleaner pours through them clear. will this clean them enough?

How can you tell what injectors/sizes you run if you want to change them? where are the id numbers? and does anyone know of a web page that gives the id of the numbers/jector sizes?

Are there any differences in swapping out different injectors IE from 4.0 explorer or other 4.0 motor? is this how you can get better flow?

thanks

 

[Bob Ayers]

There are places that will clean, and flow test injectors. To properly clean injectors, they have to be reverse-flowed. This is what should be done. The OEM injector sizes are optimized for your engine, going over sized will just cause problems.