Is the blow by filter a maintenance item?
My manual, my dealer, and now JD customer service do not identify the blow by filter as a maintenance item. I found this out by first talking to the dealer, and then JD customer service. It should be a maintenance item. I replaced the filter this morning, or actually the dealer sent a tech to my house.
What is blow-by oil in the air filter?
Oil in the air filter or housing is known as blow-by and it can be caused by several different reasons that should be corrected immediately as it could be the result of or lead to serious engine damage.
How does a blow-by work?
Internal combustion engines operate through the ignition of air and fuel. When this explosion makes its way to the crankcase through the piston rings and then out of the engine, a blow-by occurs.
What is blow by in a car engine?
During combustion, high pressure on the top side of the piston pushes combustion gasses, as well as droplets of oil and fuel, past the piston rings and into the crankcase. This mixture is known as “blow-by.”
What does blow-by mean?
Definition of 'blow-by' 1. leakage of the air-fuel mixture or of combustion gases between a piston and the cylinder wall into the crankcase of an automobile. 2. a device, fitted to a crankcase, for conducting such gases back to the cylinders for combustion.
Does Blowby reduce power?
Over time, blow-by can reduce engine efficiency as it coats parts of the intake in oil and fuel. In forced-induction and intercooled engines, blow-by often coats the inside of the intercooler, severely affecting its ability to transfer heat and cool the intake charge. These issues become even more apparent with age.
How long will an engine last with blow-by?
Engine blow by reduced Recommended rebuild life was about 11,000hrs. There were many failures due to severe carbon build up, some with only 3000-4000hrs. Typical rebuild intervals were 8,000-10,000hrs. One 10-piece fleet using FTC Decarbonizer stood out!
How do I know if my engine has Blowby?
0:061:17Here's What I Think of Engine Blow-By in 1 Minute - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo a easy way to check it is to run the car and look around to see if there's any oily gaseous airMoreSo a easy way to check it is to run the car and look around to see if there's any oily gaseous air being blown through. Especially you could take off the air filter.
How do you stop Blowby in a gas engine?
How do you fix a blow by?Clean Crankcase Ventilation. The first thing you need to do is check your crankcase ventilation to make sure it is clear of sludge and dirt. ... Oil Treatment. ... Replace Piston Rings. ... Replace Pistons. ... Replace Engine Block or Remanufacture Cylinders.
Can a turbo cause Blowby?
Anyway, if the seals are out in the turbo the boost pressure or exhaust gases from the turbo can get into the oil return to the crankcase inturn causing blow by.
Should I buy a truck with blow-by?
Truck Blowby can be reduced or avoided It generally won't correct itself, and can only get worse. If it is caused by wear, ignoring it risks more serious damage, or failure and much higher costs to rectify. Our best advice is to clean up the internals and determine for sure if it does need a rebuild.
How much engine blow-by is normal?
1.5 cubic feet per minuteHow Much Blow-By Is Normal? All engines have minor levels of blow-by, as piston rings aren't completely watertight, even in new engines. For instance, a 12-liter engine in good condition may experience 1.5 cubic feet per minute (cfm) of blow-by under normal operating temperatures.
What are the symptoms of blow-by?
Engine Blow by SymptomsBlue Exhaust Smoke. A blue cloud of smoke blowing from the exhaust pipe may be a sign that your vehicle's engine is blown up. ... White Exhaust Fumes. ... Knocking or A Rattling Engine. ... Coolant in Engine Oil. ... Engine Failure. ... Flushing Oil Concentrate. ... FTC Decarbonizer.
Why is smoke coming out of my oil cap?
If you see smoke coming out of the oil filler cap, it means that the intake valve stem seals or piston rings are bad.
How to fix a car engine that blows by?
However, there are some things you need to do to fix it. 1. Clean Crankcase Ventilation.
Why do piston rings blow by?
The piston rings are continuously being pushed back and forth in the cylinder wall, and with time they become worn and destroyed. This leads to leakage of gases, which causes blow-by.
What happens when a piston ring explodes?
When this explosion makes its way to the crankcase through the piston rings and then out of the engine, a blow-by occurs. If the pistons are leaking and causing the blow-by, you may also notice a loss of horsepower. If not solved, blow by will cause further engine trouble and will also cause increased engine oil consumption.
What is the job of crankcase ventilation?
The crankcase ventilation job is to recycle blow-by into the intake again. If the crankcase ventilation hoses are blocked, it will push it out from the oil cap once you open it, and you may think that your engine has a lot of blow-by. Check the crankcase ventilation and make sure it is clear from any dirt.
Is blowing by a car bad?
Generally, blow-by is a bad thing and often not easy or cheap to fix. However, if you experience blow-by, you will want to check the crankcase breathing to make sure it’s not blocked first. Here is a more detailed list of the 4 most common causes of engine blow-by.
What is a blow by?
What is Blow-by? Blow-by occurs when the explosion that occurs in your engine’s combustion chamber causes fuel, air and moisture to be forced past the rings into the crankcase. Your engine’s rings must maintain an excellent fit in order to contain the pressure.
What are the effects of blow by?
The effects of blow-by: loss of horsepower and oil contamination and dilution. Blow-by inhibits performance because it results in a loss of compression.
What causes a car to blow by?
The causes of blow-by: wear, soot and deposits. As rings and cylinder liners wear away they are less capable of maintaining this seal. Consequently as a car ages the amount of blow-by that occurs can increase. Soot and deposits left over from incomplete combustion that collect on the rings can also inhibit their seal worsening blow-by.
Why is my air filter blowing by?
Oil in the air filter or housing is known as blow-by and it can be caused by several different reasons that should be corrected immediately as it could be the result of or lead to serious engine damage. Determining the cause of the misplaced oil can be a bit tedious and will require at least one special tool that is likely available ...
What happens if you shake the PCV valve?
Shake the PCV valve, if the check valve doesn't move and a rattle is not heard, the PCV could likely be the culprit, allowing oil to pass through the valve and into the intake tube. Replace the PCV valve and check the filter and housing after 500-1000 miles, continue on if the PCV valve is properly functioning or replacing it doesn't solve ...
Why does oil pool in the top of the cylinder head?
As the oil passages become clogged it becomes difficult for oil to drain from the top of the engine down into the crankcase, cause oil to build up and pool inside the top of the cylinder head. Extremely clogged passages will cause pressure to build up and will open the opportunity for oil to push through the PCV valve and enter ...
How does an oil ring work in a piston?
Each piston has an oil ring that allows the piston to travel up and down without oil passing the top of the piston and entering the combustion chamber. Once the oil is in the combustion chamber it will be burned off during combustion or pushed into the intake and exhaust manifolds resulting in oil coated exhaust or oil working its way to ...
How to remove PCV valve?
In most casts the PCV valve can be removed by pulling it out of the valve cover grommet and then removing the rubber vacuum hose. Generally the PCV valve should be changed at every tune-up, but is often overlooked. Remove the PCV valve, and into the side that rests inside the valve cover to see the check valve.
What is a blowby engine?
Engine Blowby problems or Cylinder “Blow-by” (excessive crankcase pressure) is a common and worrying problem encountered by most truckies at some stage in their career . Concern is certainly justified, as it typically means an expensive engine rebuild is necessary, and this is usually recommended by mechanics and dealers.
How much did Hugh Maslin rebuild his Cummins blowby?
The local Cummins dealer told Hugh Maslin that there was way too much blowby, and it would need rebuilding at $32,000! Instead, Hugh tried FTC Decarbonizer and Flushing Oil Concentrate. He was absolutely amazed at how much rubbish came out on the flush.
Can you fix a blowby engine without rebuilding?
Engine Blowby problems can be rectified without a rebuild. “There’s a very simple, low cost, DIY procedure almost anyone can do that will fix your engine blowby, if the engine is fundamentally sound.