What causes excessive crankcase pressure?
A few things can cause excessive blow-by apart from worn cylinders or rings.
Powerful spikes in crankcase pressure are a classic sign of a blown head gasket, or a cracked engine block.
This is especially true if the gases coming out of the breather hole carry with them a strong stench of raw gasoline.
Is crankcase pressure bad?
Internal combustion engines inherently have at least a small amount of blow by, which occurs when some of the gases formed during combustion escape past the piston rings and down into the engine’s crankcase. This is necessary, as excessive crankcase pressures can cause oil leaks to form if allowed to build too high.
How do you fix excessive Blowby?
Engine blowby can be reduced by following 2 steps : Step 1 Simply add FTC Decarbonizer in with the diesel . Step 2 Use Flushing Oil Concentrate when completing an oil change. “To fix engine blow by, FTC Decarbonizer is added to the diesel at each fill, and you literally just drive the engine clean!
What causes high crankcase pressure in a diesel engine?
When you combine a large cylinder bore, high cylinder pressure through turbocharging, many hours of use and marginal maintenance, excessive blowby is the result. The leakage of any combustion gases, air, or pressure into the engine’s crankcase is considered blowby.