New Holland Workmaster 75 is emitting blue smoke only when going downhill

[Ron Cloninger]

While mowing yesterday I noticed that every time I go downhill, the tractor will emit blue smoke and at the end of the day the engine oil level was a little low, but not below the minimum oil level. Any ideas? This tractor does have a turbocharger.

 

[RickB]

Check the pipe connecting the tube to the intake manifold if there is any oil residue, do not run the tractor except to move it to a suitable repair location. You are risking a runaway engine and the associated catastrophic engine failure.

 

[Ron Cloninger]

Thanks. If you mean the hose from the turbo to the intake manifold, there is nothing showing. This only smokes when going downhill. I was mowing and running around 2000 rpms. Probably used a pint in 6+ hours. The only downhill part is a mystery to me

 

[RickB]

Nothing showing on the outside, or inside of the hose?

 

[Ron Cloninger]

Maybe very very soon slight on the inside of the hose. Cleaned with paper towel and only seen black from the hose. What do you think about only while going downhill? Thanks for your replies

 

[RickB]

Low boost pressure under light load. Check your air filter and intake plumbing for restriction.

 

[Ron Cloninger]

I will check that tomorrow, I have not checked the air filter lately. Thanks for your help.