Smoking 7.3 NA

[GrampaTruck]

I have a 91 F350 7.3 IDI NA. She won’t smoke at an idle or anything but once you accelerate it’s just white smoke through all the gears till cruising speed. It doesn’t smell sweet so I don’t believe it’s coolant. What else confuses me is when it’s under load (pulling a trailer) it seems to be perfectly fine and just smoke black around 2100 rpms which seems ideal to me. I’m kinda guessing here, but maybe air in the fuel? Idk I have plans of just replacing injectors and IP and getting it timed properly. I recently replaced all my return fuel lines due to some leaks and I was hoping that would solve it but it didn’t. I need some help gents! Thank you!

 

[frankenwrench]

Check your timing. May be retarded. If that isnt the case, may need to check your cdrv

 

[GrampaTruck]

I feel so stupid I didn’t think to even check the cdrv! I’m willing to bet that’s a big cause because it is so full of oil under the air cleaner! Thank you!