What causes fuel dilution in oil?
Diesel fuel dilution of the engine oil occurs due to internal leakage of the fuel injection system. Causes vary with different engines, but can be related to sealing ring failure, loose connections, faulty fuel injectors, or even the result of extended periods of idling.
How much oil pressure should a 3406E cat have?
Cat give the minimum oil pressure while at operating temp. The specs are: The minimum oil pressure on a 5EK at idle is 15 psi. At 1200 to 2100 RPM’s the minimum oil pressure is 40 psi.
Why is there diesel in my oil?
In the specific case of diesel cars, diesel fuel also enters the crankcase as a result of post-injection during regeneration so that the fuel gases can reach the crankcase and help the regeneration process by providing heat.
Is some oil dilution normal?
Some dilution is normal, but excessive dilution is probably a symptom of a bigger problem – perhaps a serious fuel system or inlet air problem where your engine is over-fuelling.
How much oil dilution is too much?
For this particular OEM, the limit for “excessive” fuel dilution in engines is 4%. If the amount of fuel in the oil reaches 4%, the oil should be changed and the source of “excessive” fuel dilution found and corrected. However, an oil change does not locate and correct root cause; it merely addresses a symptom.
Are there any oil leaks in the Caterpillar 3406E?
However, as with all engines, there are usually a few issues that are well known. You may have heard of oil leaks with the 3406E. A common spot for leaks is near the rear side of the engine around the spacer plate and the cylinder block. During the production of the 3406E, Caterpillar wasn’t using the best gaskets.
Where does the dipstick go in a diesel engine?
An open dipstick tube pokes a little way down into your block, but likely not past the bottom of the block casting and certainly not into the oil itself. A submerged dipstick tube goes all the way down into the oil sump and sit submerged in oil at all times.
What’s the difference between a caterpillar C25 and a 3406E?
The Primary Differences Between Caterpillar 3406E, C15, and C15 ACERT Diesel Engines. 1 Caterpillar 3406E. The Caterpillar 3406E has been known as a reliable diesel engine throughout the years. Many mechanics praise this engine as being 2 Caterpillar C15. 3 Caterpillar C15 ACERT.
Can a Caterpillar engine leak diesel into the oil?
I have searched the Internet regarding the problem and it seems that this particular Caterpillar engine has an injector seal that can leak. When that seal leaks, diesel gets into the oil. Do you know anything about this problem?