Apollo
New Member
- Joined
- Sep 14, 2007
- Messages
- 138
- Reaction score
- 0
- Points
- 0
- Age
- 35
- Location
- Blanding Utah
- Vehicle Year
- 1990
- Make / Model
- Ford
- Transmission
- Manual
one of the drivers that works for us had us do a maintinence inspection on her bus (1995 chevy 6.2l diesel bus) she said it was running like crap and overheating real bad. upon inspection i noticed a real loud pinging sound so i thought it was a sticky valve, no biggy. but as the temp rose to well over 260 we decided it was a cracked cylinder head once again (3rd one this year) well i got some photos to depict what we found.
the 6.2l in the bus before removal
Who needs an engine stand when you have a forklift?
Got the heads off
As you can see around the larger valve there has been some coolant leaking into the combustion chamber. And at the top of the cylinder impression there is a lot of buildup from the coolant burning
This is the cause of all the problems. First pic is of what the piston should look like and the second one is of what happens when a wingnut challenges a piston to a game of "who can last longer"
the 6.2l in the bus before removal
Who needs an engine stand when you have a forklift?
Got the heads off
As you can see around the larger valve there has been some coolant leaking into the combustion chamber. And at the top of the cylinder impression there is a lot of buildup from the coolant burning
This is the cause of all the problems. First pic is of what the piston should look like and the second one is of what happens when a wingnut challenges a piston to a game of "who can last longer"