V6 Head gasket question
Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=2058
Printed Date: 18 January 2025 at 9:03pm
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Topic: V6 Head gasket question
Posted By: Dawg
Subject: V6 Head gasket question
Date Posted: 02 September 2010 at 9:45pm
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Yesterday after crawling all over the car for 3 hours and burping the coolant over and over I finally opened the engine filler cap and removed the thermostat. Once the pressure in the coolant system was gone I saw never ending tiny bubbles in the coolant. Piss! That means new head gaskets are in my future. It seems like it almost stops when the coolant is under pressure. So I told Michelle to keep the revs down and limp to work till we get around to fixing it. She did today and it was fine. I've checked the dipstick over and over and there is no coolant in the oil so far. My question is what about torquing the head bolts another 5 foot pounds all around? It might just buy us a few months which we could use to save up some cash. And if I do this, can the valve covers be taken off without removing the intake? DG ------------- You dream it up....I'll make it |
Replies:
Posted By: ARTIC-1
Date Posted: 02 September 2010 at 9:58pm
you can fix it for $5,these tabs work great!lLORDCO
 ------------- SNOW MAN 87-GT/AUTO-2.8_ WHITE 88-TTop/ Duke-2.5. RED |
Posted By: Dr.Fiero
Date Posted: 02 September 2010 at 10:29pm
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^^^ a caddy 4.9 withOUT the above will have all sorts of troubles! Try them - or try the barsleak stuff. Unfortunately, cylinder into water jacket (and I gotta tell ya - of all the 2.8's I've done - I've never seen that!) it probably won't work. Really only works if the waters trying to escape. Damn physics. 15psi of jacket pressure meeting a couple thousand psi of combustion pressure. You know who's going to win THAT pushing match! |
Posted By: Romeo
Date Posted: 02 September 2010 at 10:34pm
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That wont work, Arctic, the head gasket leaks off into the cylinders. It's completely inaccessible. As to your question Damien, while the bolts might take it, it wont help matters, the bolts are already stretched they're holding the head so tightly. The leak is likely in such a manner torquing down wont fix it at all. ------------- Never shift into reverse without a back-up plan. |
Posted By: Capt Fiero
Date Posted: 03 September 2010 at 1:24am
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There are ones out there that are designed to be put in the cooling system and after the engine has been ran, so the cooling system is hot, and the engine off, the tiny bit of coolant that will push back into that tiny hole and over time seal it up. Lordco does carry it, and I myself might be buying it for the 4.9. I forgot to put the above mentioned GM tabs the last time I moved this engine around and into the 87 then proceeded to drive it. This is a major No No on an engine that has an aluminum block with floating steel sleeves. Some of the caddy guys say the barsleak stuff is the same or better than the GM Tab's and in the past I have had problems with the tabs in the Fiero, as they clog up in the thermostat housing. Personally I would look for something better than either product. I can't remember the name of the one I am thinking of, I just remember seeing it at the Scott Road Lordco near Dr. Fiero. ------------- Capt Fiero 88 Fiero GT 5spd V6 Eight Fifty Seven GT V8 5spd. |
Posted By: ARTIC-1
Date Posted: 03 September 2010 at 9:24pm
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Dr.Fiero an Dave are right,it probly wont work vary well for a head gaskit,but
it does work for a cracked cylinder wall or block,check out 1/2 way down this page ive link under the part-Cooling System Sealers-i my self drive one of these 6.5 Turbos Diesel Suburban an it has this vary prob.how i discovered it was pressure in the rad in the morning when it was dead cold,sitting over night.then i found those tabs an they work for me for $5,thought they might be worth a try for buddy.but there are doos an dont's as Dave describes-ALUM blocks an such. http://flashoffroad.com/Diesel/No8Cyl/CrackedBlock.htm ------------- SNOW MAN 87-GT/AUTO-2.8_ WHITE 88-TTop/ Duke-2.5. RED |
Posted By: Dawg
Date Posted: 03 September 2010 at 9:46pm
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Well I went to Lordo (Still Creek) and talked to my guy. He pointed me to one of the best products on the market and said it should work seeing as my problem is just getting started. What have I got to lose? It's really thick goo so I'm going to remove the thermostat and shove it in little bit at a time. I'll run it at idle in the driveway till it gets as warm as it's going to get and then let it cool down for an hour or so. Then do it again and again till I see no bubbles. Wish me luck! DG ------------- You dream it up....I'll make it |