I have a 1975 jd 4430 diesel tractor that is new to me. After start up, I notice smoke coming out of a tube that is located between the frame and the battery box on the right side of the tractor. The tube is pointed straight down. Is this some a breather tube for crankcase oil? Thanks, Carr
JD 4430 smoke source
- Thread starter cdupuy
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Tx Jim
New Member
cdupuy
Yes as other poster stated tube you refer to is engine crankcase breather tube. I've seen engines have blow-by without using a lot of oil between oil changes. Colder ambient temps can cause more blow-by to appear. Have you checked PH of engine coolant?
Yes as other poster stated tube you refer to is engine crankcase breather tube. I've seen engines have blow-by without using a lot of oil between oil changes. Colder ambient temps can cause more blow-by to appear. Have you checked PH of engine coolant?
Zebrafive
Super Member
My 2030 (which does not get used hard), has a lot of blowby, not smoke, just air that blows hard enough to stir up the dust on the ground. When used hard, the blowby goes away for a while.