David Brown 990 Fuel System
Injectors cleaning
![injectors before](image/DB990/i1.jpg)
![after](image/DB990/i2.jpg)
Back to the wire wheel and the bench grinder to clean up the old parts
DPA pump rebuild
![CPA pump](image/DB990/fs3.jpg)
![stripping out](image/DB990/fs4.jpg)
![govenor basket](image/DB990/fs5.jpg)
![empty shell](image/DB990/fs6.jpg)
![advance and retard](image/DB990/fs7.jpg)
![resealed and finished](image/DB990/fs8.jpg)
Striiping down the pump, cleaning everything inside and resealing with a sparex kit.
the kit contains all necessary seals, filters and caps to complete the job, I had to buy a 5/16"
allen key to release the drive bush from the front, some big fisted bugar had been in here with a hammer
and given the retaining bolt a lip.