L2900 blue smoking after replacing injectors.

[garrettohio]

It didn't do that with the injectors in it.now blue smoking alot and didn't fix the knocking.only thing I noticed different is motor not pinging.

 

[D2Cat]

Perhaps you have low quality replacement injectors?

 

[85Hokie]

It didn't do that with the injectors in it.now blue smoking alot and didn't fix the knocking.only thing I noticed different is motor not pinging.

white smoke typically is unburned diesel fuel - blue smoke is burned engine oil, worn valves seats, worn rings.....

Where you get your injectors from?

And describe a knocking ....... that in itself is a whole different problem - and describe the pinging too.

 

[North Idaho Wolfman]

I've made the comment twice that the injectors that you got are very likely not good.
Find a local fuel injection shop to test them.
OR better option:
Find a local fuel injection shop to rebuild yours or send them here:

Home

Oregon Fuel Injection specializes in the repair of diesel fuel injection systems, replacement diesel parts, performance parts, drive-in service, repairs and diagnostics.

oregonfuelinjection.com

It's really sounding like you have broken rings or a broken piston.
A compression test will tell you instantly.