I have a 3126 cat in a Fl80.It has some blow by I changed the air compressor this week an my blow by got alot worse. what could the air compressor have to do with it
Year: 1999Make (other): FreightlinerModel: FL 80Engine: 3126 cat
Hi my name is Chad. Was it a new compressor? I have seen some compressor once they get worn out start leaking compressed air past the piston rings in the compressor. That air compresses the crank case through the oil return line/drain causing blowby to get bad. In fact I just replace a compressor last week ona Cat 775E haul truck for they same problem. . If you have any more qustions, please let me knowChad
I changed the air compressor an their is alot of blow by coming out now
Yes the air compressor was new and it caused the blow by to have more pressure.
If you put your hand over the dipstick tube hole does it feel like a steady pressure or more like its pulsing
it is a mainly steady pressure . some pulseing
Take you compressor discharge line off at the compressor and see if the blowby goes away some.
10 years experience lead equipment technician and troubleshooter Mining equipment expert
Man I have another question sent In .I am having more trouble with this 3126 cat
OK what seems to be the trouble.