Originally Posted by leathermang

If you have a diesel timing light.. which I assume also involves the sensor which clamps onto the metal injection pump line ... go for it.
If not, the Factory Shop Manual shows using the drip method to set the IP.
Do not use the ' bubble up ' method... at least drip size has some basis in physics in order to standardize the procedure... ' bubbling up' does not.
All this stuff is well discussed in the archives also...