Oil in the coolant and coolant in the oil

billr

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Even without the pix, I can probably answer the easy question. The heads each have a coolant port blocked, but on opposite ends of the heads, because the same P/N head is used for both banks; so coolant flow is in opposite directions for each head. I'll elaborate if that doesn't make sense to you.
 

billr

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The "blue" thing is a balance shaft.

The black part of the gaskets is relatively unimportant for sealing. It is primarily a framework or holder to keep the tan sealing strips in place. The tan strips should be a bit soft (compliant) and work as odd-shaped O-rings.
 

wolfsmane

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The "blue" thing is a balance shaft.

The black part of the gaskets is relatively unimportant for sealing. It is primarily a framework or holder to keep the tan sealing strips in place. The tan strips should be a bit soft (compliant) and work as odd-shaped O-rings.
Everything on the gasket is stiff. I'll keep look for the tool to do the pressure test on the heads.

When the time comes to put it all back together, does this engine require new intake and head bolts, or reuse the original bolts? I know on my Chevy Avalanche they use torque to yield bolts which are a one time use.
 

billr

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What is your favorite FLAPS? This is the AZ version:

I can't say about the head screws. The only TTY head screws I have had to fuss with, I re-used...
 

wolfsmane

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What is your favorite FLAPS? This is the AZ version:

I can't say about the head screws. The only TTY head screws I have had to fuss with, I re-used...
Not available within a 30 mile range of me.

Question - you were saying that each gasket had a port blocked, but on each end. If you refer back to the original pics I posted you will see that on one of those ports, it was busted open. Would that allow oil in the antifreeze?
 

wolfsmane

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Not available within a 30 mile range of me.

Question - you were saying that each gasket had a port blocked, but on each end. If you refer back to the original pics I posted you will see that on one of those ports, it was busted open. Would that allow oil in the antifreeze?
Also, both of the blocked ports were right across from each other, both close to the firewall, not one in the back by the firewall and one closest to the radiator. Was that put in incorrectly by whoever was in this engine before me?
 

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billr

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"right across from each other" is how they usually are, and it is usually the ones at the rear of the engine (end furthest from water pump) that are blocked.

No, those rusted-through sections may disrupt the intended coolant flow, but would not cause any oil/coolant interflow.
 

grcauto

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Torque to Yield bolts need to be new. You never want to use them more than once.
 

wolfsmane

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"right across from each other" is how they usually are, and it is usually the ones at the rear of the engine (end furthest from water pump) that are blocked.

No, those rusted-through sections may disrupt the intended coolant flow, but would not cause any oil/coolant interflow.
Ok, I misunderstood. I thought one would be in the back and then on the other side it would be in the front.
 

billr

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I peeked at Rock Auto listing for that vehicle/engine. Info for "head gasket kits" and "head bolts" listings both indicate the screws are TTY.
 

grcauto

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If the headgasket kit comes with new bolts they are TTY. Most any manufacturer of these kits will not sell them without the bolts if they are TTY.
 

grcauto

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That being said if you get a cheap kit in may not have the bolts and you will want to get them separate.
Just get the kit that has them.
 
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