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Old 07-16-2011, 03:29 AM   #1
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Angry Head Gasket Nightmare

IM STUMPED! Heres the story,

My water pump went out so i tried to get it home one day and over heated bad. Next thing i know i have white smoke coming from the tail pipe so as a precaution decided to change out the head gasket and all others at the time i was doing the water pump change. Well i brought the head to rep machine shop and had him magnaflux it and do any other work that needed to be done. He said it was good to go no leaks and he leveled it off. Well get it home put it all back together... start it up and..... rough idle white smoke, ran like crap. I said ok maybe just didnt get the head on right or i messed something up along the way. SO got another head gasket replaced it again torqued every thing to spec and sequence, changed the plugs and the wires, and bam ran great. I ran it around town for a little while everything running better than before. So I got home from work tonight and cranked it up. almost immediately getting white smoke again, but this time motor sounds like its running like a champ (No ruff idle).

THE ONLY THING I CAN THINK OF is that i used the original head bolts...
PLEASE SOMEONE HELP

tearing down the head on this little 4 banger and to bad but it sucks when you have to do it time after time... and oil and coolant arnt cheap three times around in a month.

FYI
1997 TJ 2.5 with 156000 miles
Inspected the block for cracks and there were none visible
Using Copper Cote

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Old 07-16-2011, 05:15 AM   #2
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Sorry to hear you are having trouble. I just replaced my head gasket, 65000 miles. But after one go everythong went well. I think i would take the heato a dfferet machine shop. Check the coolant if there are traces of oil i would also resurface the block. Sometimes the block is the ones whos surface is not straight.

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Old 07-16-2011, 07:12 AM   #3
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Pressurize the coolant and pull out the plugs.
See which one getting water in it
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Old 07-16-2011, 07:13 PM   #4
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Just an update pulled the valve cover off an notice water in the oil... Now I had water in the oil before I changed the head gasket could I have not gotten all the water out .. The white smoke coming out the pipe is not very much ... No were near as much before
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Old 07-16-2011, 08:40 PM   #5
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Check the compression. And do a cooling system pressure test.

The white smoke may just be water trapped in the exhaust steaming off from before. Sometimes it takes quite a while to completely evaporate - 100-200 miles.
You might drill a small 1/8" hole in the lowest point of the muffler to help.
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Old 07-16-2011, 09:10 PM   #6
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Quote:
Originally Posted by rrich
Check the compression. And do a cooling system pressure test.

The white smoke may just be water trapped in the exhaust steaming off from before. Sometimes it takes quite a while to completely evaporate - 100-200 miles.
You might drill a small 1/8" hole in the lowest point of the muffler to help.
Well what about the water in the oil ... Left over?
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Old 07-16-2011, 10:36 PM   #7
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Could be leftover.
Drain and refill, see if it comes back. When you had water in it before it was probably condensed all over the inside of the engine.

Make sure your CCV system is working properly - the vents in the valve cover tends to plug up, preventing it from sucking the fumes out properly - especially the front one that connects to the air filter. Blow through the hose - it should flow fairly freely.

BTW - Many mufflers have that weep hole, it helps prevent corrosion. if you make it too big and you can hear it, you can always plug it with a sheet metal screw.

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