bigpursuit
New Member
Leak Down test concludes head gasket.
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Leak Down test concludes head gasket.
I know I'm Jumping in a little late here, but the above statement is impossible.
You have done enough testing it's time to pull it apart techmitch is right a leak down test will show you could have a blown head gasket if the tech did see bubbling in the coolant it might be a blown head gasket or a crack in an area where coolant runs.
The word "concludes" is a little too sure I admit. The leakdown test concludes their are gases excaping into the coolant. It could of course be a cracked block. The leak down did conclude the boat needs to be taken apart at which point I HOPE it is only A head gasket!I know I'm Jumping in a little late here, but the above statement is impossible.
The word "concludes" is a little too sure I admit. The leakdown test concludes their are gases excaping into the coolant. It could of course be a cracked block. The leak down did conclude the boat needs to be taken apart at which point I HOPE it is only A head gasket!
It's got me freaked out even if it's a head gasket. The boat is 10 years old and only has 400 hours on the engines. ShouldThe chances are much higher that it is a blown gasket...blocks don't usually crack unless they are full of water and exposed to freezing temps for a prolonged period of time....but a cracked block is a possibility, just a small one IMHO...
Did you drain the fluid recently? If so, could there be air trapped in the coolant loop? Air expands when heated, fluids don't....
It's got me freaked out even if it's a head gasket. The boat is 10 years old and only has 400 hours on the engines. Should
I do anything with the other engine as well?
are you experiencing any problems with the other engine?...if not i would not go looking for trouble....
if you are still a little paranoid of the possibility of a bad head gasket in the other engine you can check for some of these symptoms:
check the condition of the spark plugs...if the tip of a plug is much cleaner than the rest of the plugs there is a good chance the head gasket is bad and allowing coolant to get into the combustion chamber...the coolant will be vaporized and 'steam clean' the plug tip...you may notice an erratic idle or engine mis-fires from that engine since coolant does not burn, but if the amount of coolant is low enough the idle and performance of the engine may not be affected at all....if a spark plug has coolant on it when it is removed you have a problem...if you see white smoke coming from the exhaust the coolant is being vaporized in the combustion chamber and the exhaust may have a 'sweet' smell to it....there are only two ways to loose coolant from a closed cooling system...it can either be leaked out or it can be vaporized in the combustion chamber...if you are frequently having to add coolant to the system you need to be looking for where it is going...as you have seen, bubbles in the coolant or radiator while the engine is running are also common signs of a blown head gasket...head gaskets can blow in different ways...one is when the passage between the coolant passages and the combustion chamber is opened up...this results in the symptoms you are seeing, bubbling in the coolant resevoir or radiator and the resevoir filling with coolant...a blown head gasket can also open up the passage between the oil passeges and the coolant passages...this will cause the oil to become cloudy or milky colored due to the mixing of oil with coolant...this is not good because coolant will quickly destroy bearings which could lead to a major engine rebuild...a blown head gasket may allow combustion gases and pressure to escape out into the engine bay which sometimes causes a whistling/wheezing sound from the engine while running...
but like i said before, don't go looking for trouble...you can almost always find something that is not 'perfect' and start throwing time and money at it when in the end it may not be needed at all...
I had another compression test done with the following results; 1-160,2-150,3-150,4-150,6-150,7-150,8-160,5-140. This doesn't look right to me, have I been ripped off?