Spewing oil from pushrods...DD671

[Triskele]

Removed the valve cover on my port engine the other day and noticed oil was spewing from the pushrods on cylindders 1 + 3. Although I did not check the starboard engine, this does not look to be normal to me. Not a diesel mechanic so can't say. Anyone familiar with this occurance? Took a video, but uploading is not an option on this forum. Posted on Instagram under my user name 1xharpguy if anyone is so inclined to have a look.

 

[Boatsb]

I think they should all be spewing oil.

Just my opinion.

 

[Triskele]

I think they should all be spewing oil.

Just my opinion.

Hmmm...that's a thought. Maybe the problem is the four not spewing oil. Maybe time to remove the starboard valve cover and see what's up.

 

[Triskele]

Much ado about nothing. After checking the DD 70 series manual, overflow of oil from the rocker arms lubricates the valve ends and cam followers. On the contrary, as you alluded to Scott, a lack of spewing oil may indicate plugged oil passages. According to the manual, important to inspect and clean out the oil passages in the rocker arms, bracker bolts and rocker arm shafts with fuel oil and small wire and dry with compressed air.

 

[Glory]

With cold oil at an idle you may not have oil "spewing" from all the rocker shafts. Just a FYI, the push rods are solid, the oil travels to the rocker shaft through the rocker shaft bolts they are hollow.

After a head is assembled running the engine with the rocker cover off is a standard procedure to be sure no fuel lines are leaking. Preforming this check you rarely make a mess that can't be contained with a few rags.

 

[krush]

It's probably safe to say that if oil wasn't flowing where it's supposed to, by now something would've broke.

 

[Dan Mapes]

Hot or cold engine?

 

[Glory]

To test the delivery at all rocker shafts, start up the engine and let I run a few minutes while watching for oil. At normal idle speed, you should see oil at all rocker shafts , it shouldn't take long.

Keep in mind this is the top of the engine and the last place, oil will be deliver, one of the reasons to not lower the idle below spec.