derv injectors

[EsSeX dAn]

with diesel injectors on a non pd engine,if an injector plays up so it making the engine clatter,is it the whole unit to be replaced or just the nozzle? reason i ask is i was doing some research and says something about excessive noise stopping when you crack the union nut off for the injector basically its faulty

[Agreeable Slick]

Depends on the nozzle design.

It could just be the nozzle/shimming is worn and needs replacing in which case you would need to crack them open, re-shim/spring and then retorque them, and do a pop test on testing machine.

Or

They could just need cleaning (ultrasonically) to get the crap off them.

[EsSeX dAn]

any reccemondations on who can tesn an cleam them?

[Agreeable Slick]

I think in this instance it will be a case of getting on google and having a ring around.

There is always the option to build/buy your own pop tester & ultrasonic bath (although that's the expensive route )

[NoCrap]

By your user name i'm guessing you're in essex?

There's a good company near me in ipswich called Diesco, they specilise in diesel injection and are very helpful

Give them a call - http://www.diescogroup.co.uk/diesel-fuel-injection

[EsSeX dAn]

yes im from essex. ill give them a shout. thanks for that