PLUG ON TOP OF WATER PUMP USE??

[chris142]

If you replace the stat put a small piece of paper in it to block it open slightly. This will help prevent an air pocket.

 

[79jasper]

For anyone else reading this topic, if this happens when it's *not* extremely hot, it's a blown head gasket.

So an air bubble is equal to a blown hg?
That isn't necessarily being "extremely hot" either.

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[DiecellDan]

Is removing the check ball in the thermostat housing okay? I lost the check ball

 

[DiecellDan]

@Macrobb

 

[IDIBRONCO]

You'll be fine without it.

 

[79jasper]

Many either A) don't have it. B) its sealed shut with rtv/rust. Lol

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[Macrobb]

Is removing the check ball in the thermostat housing okay? I lost the check ball

Yes, and it works so much better with it missing.

So an air bubble is equal to a blown hg?
That isn't necessarily being "extremely hot" either.

Sent from my SM-G892A using Tapatalk

In my experience, an air pocket will escape during warmup, not usually once it's hot - everything will have already expanded by then.
A bubble or three, sure. If you get constant bubbling(which is what I was thinking of when I made that post), or a bunch of bubbling right after "overheating" it, you might well have a partially blown head gasket - that's what mine did for about a year(slowly getting worse) before blowing to the point of coolant out the exhaust and a "boiling" overflow at idle.

 

[frankenwrench]

Many either A) don't have it. B) its sealed shut with rtv/rust. Lol

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I was unsure of that ball when building my block so I rtv'ed it in place to keep it from falling out while assembling. Lol