Used Diesel 4 Cylinder Engine Head D04FR 8 Valve For SK130-8 Excavator

D04FR Diesel Used Engine Heads For Excavator SK130 - 8 Water Cooling

Specification

Description

Cracked Cylinder Head Symptoms

1. Coolant Leak

Although a coolant leak can cause a cracked head, it is also a symptom. If the cylinder head is severely cracked, then you’ll probably have coolant leaking out of it in addition to oil.

This will cause your engine to overheat, which your car will warn you about on your dashboard. Sometimes coolant leaks are internal. Internal leaks may leak into the oil passages or the combustion chamber.

Either way, check your coolant level and do not continue to drive when you have a visible coolant leak or notice the coolant level quickly dropping over time.

2. Poor Engine Performance
car hesitates when accelerating - gas pedal

The first symptom you might experience is a noticeable loss in engine power. If the cylinder head has a crack, that means compressed air is escaping from the combustion chamber.

You will notice the engine running a lot slower or awkwardly once this happens.

3. Smoke From Engine
white smoke from exhaust

Although this is rare, big cracks in the cylinder heads will allow coolant to leak into the combustion chamber and cause white smoke to come from the engine.

In addition, leaking oil can make contact with hot engine components to produce this smoke. This is clearly a sign that a cracked cylinder head may be at fault.

4. Engine Misfire
engine misfire causes

This relates to number three. If the cracked cylinder head is severe, then the mixture in the combustion chamber will cause a misfire. This means the mixture won’t burn like it should.

Either that, or your engine will simply die as you’re driving and you will have to repeatedly start it back up.

A minor crack in the cylinder head may go unnoticed for some time, but the symptoms will be pretty obvious in severe cases. Below are five common symptoms to watch out for in the event that this happens.