Fuel pump and injectors

[growler2058]

Understand that diesels blow a bit of black smoke when being pushed, but my ol girl is blowing a bit too much (black not blue) are injectors serviceable or do I have to replace them?? Can I try tuning the fuel pump?? I thought I read that stuffing with the fuel pump can potentially FUBAR the motor ( spose if you lean it off to much)

[MudRunnerTD]

When my GQ needed injectors it blew random plumes of ugly black smoke. Was a bit weird. Not like black fuel smoke but inconsistent puffs and running rough under power.

Before I put the turbo on mine blew heaps of black smoke. So much so I was concerned about putting the turbo on! When the turbo was fitted the fuel did not need adjusting but the black smoke was gone.

Reckon you might just need a good tune bud. Even think about putting it on a Dyno for a good setup.

Newby is your man though, I can only give you my own experience bud.

[AB]

When my GQ needed injectors it blew random plumes of ugly black smoke. Was a bit weird. Not like black fuel smoke but inconsistent puffs and running rough under power.

Before I put the turbo on mine blew heaps of black smoke. So much so I was concerned about putting the turbo on! When the turbo was fitted the fuel did not need adjusting but the black smoke was gone.

Reckon you might just need a good tune bud. Even think about putting it on a Dyno for a good setup.

Newby is your man though, I can only give you my own experience bud.

I think his motor is subliminally saying...turbo me growler, turbo!!!

Like that move little shop of horrors..."feed me sucker and feed me now!"

[nissannewby]

They are serviceable but it's easier to just can an exchange set probably cheaper too. Also your pump could be getting a little tired as you do have a few k's on the ole girl. Unfortunately the only real way to test injectors or your pump is on a bench so generally again it's easier just to get them redone.

[Col.T]

G'day Growler,
I've found a lot of short running fouls up the injectors and the fix is a dose of injector cleaner (or possibly some of the more way out additives sometimes used) together with a good long hard run at full operating temps..
If that doesn't clean the exhaust, then go with the above,
regards
Col.

[HippoNZ]

also check the airfilter/intake for any blockages...

[threedogs]

Have heard as well a hard run within limits clears out the system.
I'd run some injector cleaner first to see how you go,