Why am I getting diesel fuel in my coolant?
The fuel pressure from the injector rail cast into the head (small hole to the left of the arrow) is far greater than the pressure in the cooling system. When a crack occurs, diesel fuel easily passes into the coolant. This is best done if the engine is at operating temp before you put air to the head.
Why does my coolant reservoir smell like gas?
A fuel smell in coolant is a good indicator of a blown cylinder head gasket, a warped head, or a combination. With the engine running, remove the radiator cap (but only when the car is cool!) and see if you observe any gas bubbling in the coolant.
Is diesel in coolant bad?
“Diesel is not explosive at normal engine temperatures”, you can pour it on a hot exhaust (not glowing) it won’t burn, it evaporates off in a smokey cloud. To make it burn you need a source of ignition. MEG;- Ethlyene glycol in its pure state is flammable and a seriously bad idea to use as a coolant.
When a cylinder head injector cup fails What is the likely outcome?
Injector cups are a very vital part of the internal workings of a Powerstroke diesel engine, whether it is a 6.0L or a 7.3L. 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.
How does coolant get in fuel?
Coolant gets directly into the Engine cylinders often when a head gasket fails, this results in decreased performance and smoke out of the tailpipe, but an engine can run for a long time in such conditions, so it’s quite common for engines to run with small amounts of coolant leaking into the cylinders.
How does gas get into coolant?
A blown head gasket will typically send coolant into the combustion chamber while the piston moves downward, partially or completely quenching the combustion event and sending a cloud of white steam from your exhaust.
Can you mix gas with coolant?
Oil, ATF and gas won’t mix with coolant. It can go into emulsion while the engine is running but will separate out once the mixture cools.
When should I change the coolant in my diesel engine?
The coolant in diesel engines needs to be replaced every 2 years (or 30,000 miles), while the coolant in gas engines needs to be replaced only every five years.
How often should diesel coolant be changed?
For diesel trucks using green antifreeze, the recommendation of coolant service is usually around two years or 30,000 miles. For diesel engines running extended-life coolant, service is around five years or 100,000 miles. To be on the safe side, periodically check the antifreeze every six months.
Why do Ford 6.0 heads crack?
The most common result of cracks in the 6.0L injector bores inside the head is fuel finding its way into the cooling system.