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GreenBlurr,

I to am offended at your response. Frankly we can do without your comments. To assume we are all idots and kids is foolish. If you want to comment on a thread keep it civil or keep quiet.I would have thought maybe you had a bad day or something but since you commented twice I believe you are just that way.

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To some people thier way is the only way. The rest of us don't know anything.
Yeah those 'tools' do work but there are millions of cooling systems filled without using this that that have no problems. Evidently this is just idiot's luck.

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Yea that was harsh, I know you get aggravated by some peoples response when you try to help but you should blow it off.

I guess I have been lucky over the years. Last weekend I flushed my 71 440s coolant and let run for about 20 mins in the driveway and all seems well?

"Got everyone's attention though didnt i. and now they read, and now they learned."

I learned not to talk down to people, thanks.

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Back to the original topic, why not put the 160 degree thermo back in and see if your problem goes away and go from there?

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Where do I pickup my prize?

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Looks like you are two for two (first this problem then mine) You got my vote for Guru status.

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Where do I pickup my prize?

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Right here Just because his stat housing doesn't leak anymore, doesn't mean his problem is gone. Appears as though his over-heat problem went away with the new stat housing also?????????? Normally, the highest cooling system pressure occurs after shut down, when the engine heat soaks ( and that's when the stat housing leaks at it's worst), not as you rev up the motor - unless you are pumping air in to the cooling system. Not sure who anymore, but someone used to sell a kit that would detect exhaust gasses in the cooling system. Good way to verify that all is ok.

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Where do I pickup my prize?

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Right here Just because his stat housing doesn't leak anymore, doesn't mean his problem is gone. Appears as though his over-heat problem went away with the new stat housing also?????????? Normally, the highest cooling system pressure occurs after shut down, when the engine heat soaks ( and that's when the stat housing leaks at it's worst), not as you rev up the motor - unless you are pumping air in to the cooling system. Not sure who anymore, but someone used to sell a kit that would detect exhaust gasses in the cooling system. Good way to verify that all is ok.

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He didn't have a overheating problem before he changed the thermostat, why would have one after changing it other than the thermostat housing leaking???

What do you think he should do? Change the head gaskets??

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Where do I pickup my prize?

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Right here Just because his stat housing doesn't leak anymore, doesn't mean his problem is gone. Appears as though his over-heat problem went away with the new stat housing also?????????? Normally, the highest cooling system pressure occurs after shut down, when the engine heat soaks ( and that's when the stat housing leaks at it's worst), not as you rev up the motor - unless you are pumping air in to the cooling system. Not sure who anymore, but someone used to sell a kit that would detect exhaust gasses in the cooling system. Good way to verify that all is ok.

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He didn't have a overheating problem before he changed the thermostat, why would have one after changing it other than the thermostat housing leaking???

What do you think he should do? Change the head gaskets??

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Read his entire post - including the post title ( "odd overheating problem "). Leaky t-stat housings don't cause overheats, but overheats can cause leaky t-stat housings. I think he should go a little farther to verify he doesn't have a head gasket problem - if his initial post and diagnosis as an overheating problem ( only when he mashed on the gas pedal )was correct. Obviously, time will tell. Here is your prize =