Injector before refurb:
Seperating injector (being careful of the needle):
Injector stripped down:
Injector needle:
Ultrasonic bath, previously used to clean surgical instruments until health and safety declared all ultrasonics must have a locking lid. Luckily I've retrieved it from the skip and put it back to work. I've filled this with a cocktail of assorted rubbish lying around the garage, diesel, paraffin and xylene:
The injector bodies were coated in polymerized vegetable oil. I gave them a dip in some caustic solution as the solution in the bath wasn't effective. The nozzle also had heavy carbon build up. I used from 1500 grit lubricated with diesel to clean the outside of them.
Cleaned components in a bowl of fresh diesel:
Ready to rebuild. What was of note was that the needle was very tight in the nozzle and difficult to move. Once cleaned up it was moving freely again.
Rebuilt and torqued to 75nm:
I think I might cut a window in the socket at the top with the angle grinder. Might void the Halfords lifetime warranty though.
