diesel fuel and exhaust

[Ebberdene]

I have a Lehman 120 with about 3500 hours on it. Starts fine, runs fine. Also burns little to no oil and oil always looks good. but I notice that there appears to be a small sheen of diesel from the exhaust discharge. Hopefully nothing major. Any thoughts?

 

[RT Firefly]

Greetings,
Mr. E. Common for a Lehman IMO.

 

[Ebberdene]

Thanks. That is my general understanding and that it is common with a Lehman 120. As previously stated the engine starts easily from a cold start, runs well, good rpm/power and oil looks fine.

 

[sunchaser]

On most diesels, lots of idling/low RPM can cause an exhaust sheen on the next startup.

 

[Xsbank]

Nope, Lehmans always mark their territory. You can diminish it a bit by servicing your injectors, but don't expect miracles.

 

[OFB]

Might just want to check the oil cooler. They can bleed into the water system and produce a slick if leaking internally.

Random thought.

 

[Ebberdene]

Seems to confirm what I was told about Lehmans. Work horse of an engine but with a few unique characteristics.

 

[Capthead]

Read my old posts about changing to synthetic.

I have happy Lehmans.

 

[jleonard]

Nope, Lehmans always mark their territory.

That's pretty funny.