Ok, here's how you clean injectors, this is something you should do if you run Bio SVO or other homemade fuel, by the time the injectors are knackered running on Dino juice you should be looking at pro recon or new injectors
First, remove the injector from the car, you will need a deep 27mm socket, and one with a window in for injector 4
Clamp the injector in a vice and using a ring spanner to separate the 2 halves, this will be tight! They are put together with around 80nm plus been in your engine for a while!!
No you will need to separate the parts from inside, on this one I have a shim stuck inside, hopefully you will not have this issue. After cleaning it came out
now place all the parts into an ultrasonic bath and go have a brew! or 2
before putting all parts back together you will have 4 surfaces that will need to be lapped so they seal, I use 2000grit tapped to a piece of glass, use some diesel as lube
build your injector back up in the vice and tighten the 2 parts back together to 80nm
fit a new copper washer before fitting back to the car ;-) and make sure you do 1 injector at a time!! do not mix up the internal parts from different injectors!
and if it's leaking from the plastic part then buy new, or good second hand
