i used a porta power hydralic unit
( http://www.princessauto.com/tools/autom ... -hand-pump )
then then ran some lines off of the end , to "t" , on one side of the tee was a pressure guage , and the other side i brazed on a nipple from a injection pump , then attached a single injection line to the nipple and conected the injector to be tested to the other side of the line .
the nice thing about using the porta power unit is most of them are really easy to change out the fliud your testing the injector with .
eventually you will find out that even 10 weight oil at room temp will not vapourize at any pressure a ve pump is capable of .
the veg oil i tested with was NONhydrogenated canola oil , which remains liqiud a room temp .
i should also add , DO NOT let the pressureized spray hit your hand ...... if it does , they will have to amputate the affected area .... NO JOKE !!!