B7500 coolant gushing out of oil pan?

[sandyc]

Freeze plug?

 

[5030]

The plug is a freeze plug and pushed out means whatever coolant was in the block froze and pushed it out and in all likelyhood cracked the block as well.

It's new motor time or at least a short block. Coolant testers are cheap, should have tested the concentration. You obviously didn't have a high enough concentration of anti-freeze in the block.

 

[hube2]

They can be called freeze plugs, but they are also core plugs. They are used to plug the holes used for casting the block.

Some think that these plugs will help prevent a block from cracking if the coolant freezes. I used to work on cars and I've never seen one of these plugs prevent an block from cracking. If the plug has been pushed out there is a nearly 100% chance that you have a cracked block.

 

[5030]

They can be called freeze plugs, but they are also core plugs. They are used to plug the holes used for casting the block.

Some think that these plugs will help prevent a block from cracking if the coolant freezes. I used to work on cars and I've never seen one of these plugs prevent an block from cracking. If the plug has been pushed out there is a nearly 100% chance that you have a cracked block.

Exactly. It's short block time and the head is probably also shot as it has water passages as well. Think I'd just get a reman and call it good.

 

[Cycledude]

Well Tim any progress ?

 

[ruffdog]

If coolant/water quickly flows from the radiator to the oil pan, it's more than a head gasket or even a cracked head. I would guess that the cast iron wall between oil/water in the block has cracked wide open.

 

[PILOON]

No matter what, it sounds $$ to me.

 

[Cycledude]

Started my trusty B7500 only to find the thermostat reaching red zone. coolant was empty! When I first added coolant, it came out of one of the holes on the side the engine block which typically has a sealing cap on it. I found the sealing cap and re-installed. I suspect I didn't have enough anti-freeze over the winter which pushed it out.

But when I was filling it up the second time, the coolant flooded the oil pan and value cover overflow. Not just seeping, but flooding out as fast as I was adding.

How does coolant get into the oil in such mass quantities? Again, The engine starts fine, so I don't suspect a cracked head. If it were a head gasket, I would have expected lots of white smoke -- and yet, nothing.

Ideas?

Looks like poor Tim only has one post about his old trusty B7500 , I wonder if maybe he just bought a different tractor ?