The Ways the Head Gasket, Head, Engine Block can fail

[dom14]

Hey Guys,

Below are the scenarios that I can think of the ways the engine fails due to head, head gasket or engine block issues.

• Water to oil
• Oil to water
• Water to combustion chamber
• Oil to combustion chamber(Rare I think?)
• Water to outside
• Oil to outside
  
• Compression issues from combustion gas leak cylinder to cylinder
  cylinder to outside
  cylinder to water (or oil)
  valve seat/valve recession)
• Compression, oil blow-by, smoke issues from worn oil scraper rings
• Smoke issues from worn valve guide seals(smoke on idling, no smoke on revving)

Let me know if I need to correct or add more scenarios or details.

Thanx

Dom

[fat mick]

I think you have it covered

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[UncleFrosty]

Not sure on the "rarity" of point #4 @dom14...
Any opinions @AB??? ;-)

[Turtle_au]

Oil to combustion chamber, worn scraper rings, worn cylinder bore, worn valve guides

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[Turtle_au]

What about the inside out.....rod through block

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[dom14]

Not sure on the "rarity" of point #4 @dom14...
Any opinions @AB??? ;-)

I'm not sure either. It's just a thought that popped into my head.
I wasn't actually taking the excessive blow-by from piston ring wear into account.
That needs to be added.