crank case breather on a 5 EK cat

Look right back behind the air compressor, drivers side rectangular opening (basically at #3 cylinder) with 4 bolt holes. If your engine does not have the block style crankcase breather , it will have a block off plate over that opening IF it's a newer block.

 

Its a bit of a pain looking at SIS on my phone but will try and remember when I have my laptop out next. Thing is with SIS if you search by prefix only you get absolutely everything available. When you search with a specific S/N you get the info pertinent to that specific engine as it left the factory. It is entirely possible that different block P/N's were used on engines produced within the same S/N break and that would explain why some have it and some don't.

 

@snowman_w900 I can take a pic of my MXS with the breather tube. I realize it's not the 5EK block.


Not my block

 

Hey @peterbilt_2005 you referring to the style that comes right off one of the valve covers?

(Not the old style E model)

Do you have the oil canister that catches the oil out the of blowby tube I'm assuming, some had it some didn't

 

It's just like this pic above

 

The oil canister was added at the dealer after the engines were made to deal with slobber complaints. Lots of the twins never got it installed.

So the original complaint is you have to wait to check oil? How long? I cant see any other way you know oil is getting held in the top end

 

I usually give it 30 seconds or so to check oil level.
If the breather was plugged, it would blow out oil seals

 

Was the engine cold? That's the only reason I could think of that would increase the drain back time. Obviously colder the oil, longer it will take.