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  #11  
Old 08-17-2016, 01:18 AM
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Originally Posted by Sam Cogley View Post
Some sort of a blockage in the block water passages? I think the IR thermometer is a good idea - figure out where the overheating is starting, and you might be able to pin down the cause.
Yeah I guess I should have tried that before I took the head off .... Lol


I think now that the head is off all I can do is verify it's not cracked, has a flat sealing surface, not warped and reassemble with new gasket and new headbolts .... See what happens
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  #12  
Old 08-17-2016, 08:15 AM
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Do you have any equipment to run some high pressure water through the water passages?
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Old 08-17-2016, 12:13 PM
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Grab one of those cheap bore scopes and look around inside any passages while it is open. I've only just used the one I bought a few times, but it paid off.
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Old 08-17-2016, 01:13 PM
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Is it single cam or twin cam engine???? IF single cam, make damn sure the machine shop fixes the valve seats.......I have had TWO of those engines that upon reaching 150k miles eat the valve seat, and in my wife's case I had to replace the entire engine.....in a friend's case we got lucky and replaced #4 piston/rod assy.....and of course got the head reworked......

Wife now has a twin cam 2.0 in her 01 Focus.......so I am curious as to what you find.....
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Old 08-19-2016, 03:16 PM
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It's a DOHC 2.0 and I found the head on Ebay, $325 shipped rebuilt, resurfaced etc ... Incl lifters and cams .... tempting ....
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  #16  
Old 09-30-2016, 12:19 AM
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Update: head looked good, cleaned everything, blue checked head to block surfaces, good contact, not a warped head .... Ni obvious sign of a leak anywhere ....
Ok, pretty much gave up and reassembled with new gasket and new bolts , started it up, ran fine for ten minutes and again overheated .....

No more bubbles in the cooling system though .... Hmmmmm

Ok, now I was wondering if maybe maybe maybe the thermostat was stuck .... In theory the previous overheating could have f'd it up ????? Anyways, took it out, drilled two good size holes in it , reinstalled .... Voila .... Fixed .... Idled fine for almost an hour, no probs .....

So I'm guessing it was both, head gasket and bad thermostat, the thermostat alone wouldn't cause the bubbles and it probably would take less than 10 minutes to overheat if it was only a stuck thermostat .....

Anywsys, it's fixed finally .....
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  #17  
Old 09-30-2016, 10:36 AM
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Nailed it! Post #2
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Old 10-03-2016, 11:33 PM
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Quote:
Originally Posted by BBShark View Post
Nailed it! Post #2
Yes you did .... I have to admit I've never seen a thermostat doing this, I did not think that with a stuck thermostat it would take over 10 minutes to overheat, maybe it did stick intermittend .... The water in the radiator got hot so I assumed there's flow ...
Maybe it was both, head gasket and thermostat... No idea just happy it's finally running ....
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  #19  
Old 10-03-2016, 11:55 PM
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In my '72 350 engine vette, I had some issues, and found the NEW stat in the car was still allowing over heating....well in the fight, I found the stat was in fact opening at like 212 or so on the stove with a IR gun and pot of boiling water....lucky to see it then....it was rated at 180....so much for China junk....

running the car with NO stat now....

seems fine....on that score, anyway...

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