samc88

Drivels spiritual representative

• Jul 19, 2015

• #1

Got a 2.5na diesel.

Used to do 70 easy then injector pump started playing up and developed a leak. Power dropped way down struggling to do 50.

Recon injector pump fitted as well as a new delphi lift pump. Engine runs nice on idle but kicks out black smoke on start up and has a haze of black smoke coming out the exhaust when driving. This has got worse ( did it only on dual carriageway but now its through town as well)

So im guessing injector issue? Only thing i havent changed in the fuel system or is it something else causing lack of power?

 

ArticFox

New Member

• Jul 19, 2015

• #2

Sounds more like pump timing to me - black smoke is due to overfuelling usually. Lack of power seems to confirm it?

 

samc88

Drivels spiritual representative

• Jul 19, 2015

• #3

Timing marks are spot on for the belt and the pump is advanced all the way atm (so it should be running lean). When the pump overfuels it ( when the timing is retarded) it makes white smoke not black

 

samc88

Drivels spiritual representative

• Jul 19, 2015

• #4

Just seems odd that swapping the pump has had no improvement in it.

 

Blackburn

Well-Known Member

• Jul 19, 2015

• #5

post a pic of linkages on the top of injection pump.
How do they compare to the old pump?

 

samc88

Drivels spiritual representative

• Jul 20, 2015

• #6

The same as far as i can tell. Its a DPS pump