What is the purpose of injector cups?
The injector cup seals the cooling system from the injector inside the cylinder head. When the injector cup fails, you will no longer have a seal between the fuel system and the coolant system. Because of the higher pressure of the fuel system, the fuel goes into the coolant.
What causes injector cups to fail?
heating cycles will cause the Loc-Tite to degrade and lose its’ sealing properties…but they are usually ‘good’ for a couple hundred thousand miles. OVER-heating (run out of coolant & overheat the cyl head) is another way to cause the cup/sealant to fail…as well as just normal metal fatigue.
What are the symptoms of bad fuel injectors?
Dirty Fuel Injector Symptoms
- The Engine Misfires. Dirty fuel injectors may cause your vehicle’s engine to misfire.
- Idling Gets Rough. Does your vehicle sputter and shake when you’re at a stop sign or sitting in traffic?
- Your Gas Mileage Tanks.
- The RPM Needle Starts to Dance.
- Your Car Won’t Start.
Why does my powerstroke blows white smoke?
White smoke often occurs when there is either too much fuel being injected into the combustion chamber, or not enough heat to burn the fuel. Un-burned fuel travels through the exhaust system & exits out the tailpipe which will produce a scent of rich, un-burnt diesel.
How much oil does a C7 cat hold?
The Caterpillar C7 engine is an line 6 cylinder diesel fueled engine with a displacement of 7.2 liters. The maximum heavy duty hp dry weight is 1,425 lbs., with an oil capacity of 4.75 gallons or 6.75 gallons with the deeper sump pump and oil pan. The cooling system and water pump allow up to 3.99 gallons.
Does C9 have liners?
Although the mid-sections of the cylinder liners in Cat C9 and C12 engines do have close clearances to the cylinder block, the tightest of the mid-area specification ranges still allows approximately . 0015” clearance between the block and liner.
Can I drive with a bad fuel injector?
While fuel injector problems usually give warning, driving your vehicle for a long time with a clogged or faulty fuel injector can cause problems. Increased fuel consumption. A noticeable increase in tailpipe smoke and emissions. Rough idle and hesitation during acceleration.
Can injectors cause blue smoke?
This can be caused by worn/leaking injectors or restrictions in the air intake system. Blue smoke is normally the result of engine oil entering & burning inside the combustion chamber. This is most often caused by low compression, or worn piston rings. (Ford 7.3 & 6.0) injectors.