Injector crack pressure tester diy

[97_gq_lwb]

I was thinking about making an injector crack pressure tester.
Heres my thoughts.
Clutch slave cylinder and a gauge similar to a compression tester attached wich you press to reset.
A small pot of some sort running through a filter for the fuel feed.
Just not sure if a clutch slave would compress diesel at a high enough pressure to crack the injector .

[Bambill]

Have a look at this.

http://www.peachparts.com/shopforum/...op-tester.html

[97_gq_lwb]

Cool i am sure i have an old bottle jack lying around somewhere.

[nissannewby]

Are you looking at playing with your injectors?

[97_gq_lwb]

Yes have a spare set here to mess with.

[nissannewby]

Make sure the area is absolutely spotless that you are working on them. In a shop these are all done in an air con "white room" Im not sure on the exact figures of a standard pump but may be worth a look in to see if she can supply enough pressure to crack them once you have bumped your crack pressure up. I would imagine it would be right just be worth a look in. If its more power you are chasing you standard injectors will supply quite a lot of fuel before needing upgrading its mostly the pump that cant keep up thats why plungers are modded to allow more fuel.

[Bambill]

Don't set them over 110bar.
About all you can do is look for a lazy injector (pop pressure) and the spray pattern.
My ute makes around the 190odd rwkw with standard injectors.