Bigfoot62
Veteran Member
- Joined
- Aug 5, 2008
- Messages
- 2,485
- Location
- W. Central Louisiana
- Tractor
- JD 5090M; JD 5085M; JD 5083E; NH TN70A; Ford 2600
Great post, thanks! It's gonna get printed out. I will need to figure out what the "crankcase ventilation blow-by" is, lol. . .
OK, on any internal combustion engine, some of the compressed air/fuel vapor will leak past the piston rings and valve seals. This is worse on a diesel because of the higher compression ratio.
On your car or pickup, you have a pcv valve that lets "blow-by" vapors go back into the intake.
Most tractors, heavy equipment, big trucks, etc, don't do that. They are just vented into the air via a "slobber tube."
I tried to find a pic of a x000 or x600 tractor that showed one, but couldn't. Here's a pic of a NH 3010 that does: NH 3010
The slobber tube is just in front of the oil filter.
And, here's a pic of a CAT engine: CAT 3176 engine
The slobber tube is the large black hose that comes out of the valve cover and goes down to the bottom of the engine. (between the two filter units)
Hope that helps.