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Northstar Engines and System Technical Discussion Discussion, Sucessful Northstar head gasket repair in a bottle in Cadillac Engine Technical Discussion; Originally Posted by basscatt oh - and about that video - IT SUCKS - Basscatt's got a case of the ...
  1. #166
    the recluse is offline Cadillac Owners Connoisseur
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    Re: Sucessful Northstar head gasket repair in a bottle

    Quote Originally Posted by basscatt View Post
    oh - and about that video - IT SUCKS -
    Basscatt's got a case of the crabbies today....


    -------------------


    scratch that, saw the video...between the anorexic chick singing background and the white trash with the Pabst...well...it seemed to ruin the car viewing experience....

  2. #167
    ksmay71 is offline Cadillac Owners Member
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    [QUOTE="basscatt;10946194"]
    ------------------------------------
    if your mechanic-in-a-can "fixed" the head gasket leak - for 4000 miles -
    than you DID NOT actually have a head gasket leak -
    it was simply misdiagnosed - like so many are -

    -----------------

    So Basscat, how else would you explain exhaust gasses detected in the coolant tank? BTW, I just passed 4500 miles since the fix. I jumped on the gas pulling onto the freeway and got an interesting little cloud of smoke out the tailpipes. This may be the end of my run, but we'll find out tomorrow morning when I go out to start it up.

    ----------

    Hehe... I need to learn how to quote.

  3. #168
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    There is a BIG difference between an HG gasket failure, and pulled head bolt hole threads.

    Sealing products will do NOTHING for pulled threads, the gap is forever changing and widening.

    In the case of an actual HG breach, a sealant MIGHT fill the gap temporarily... while making a mess of your cooling system, heating circuit, and block.

  4. #169
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    Submariner409 is offline If it won't run, stick on fender vents
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    Re: Sucessful Northstar head gasket repair in a bottle

    An "interesting little cloud of smoke" might just be the built-up "normal driving" black dust blowing out of the tailpipes upon sudden acceleration demands. Fairly common under sudden power application in any car.

    QUOTE: Hit the "Reply with quote" tab, edit the resulting post box, add your comment/advice/opinion and click submit.

  5. #170
    ksmay71 is offline Cadillac Owners Member
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    Well, I got in the next morning and it started right up! Thanks to a hefty commute, I'm now over 5100 miles since my fix-in-a-can. Whatever the original problem, the can fix is worth trying if a Caddy ia having head gasket - like issues.

  6. #171
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    Re: Sucessful Northstar head gasket repair in a bottle

    Quote Originally Posted by ksmay71 View Post
    Well, I got in the next morning and it started right up! Thanks to a hefty commute, I'm now over 5100 miles since my fix-in-a-can. Whatever the original problem, the can fix is worth trying if a Caddy ia having head gasket - like issues.

    Sorry, i still wont ever put snake oil crap in my engine.

  7. #172
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    Re: Sucessful Northstar head gasket repair in a bottle

    I don't think you had a HG issue to begin with.
    JoeTahoe likes this.

  8. #173
    ksmay71 is offline Cadillac Owners Member
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    Re: Sucessful Northstar head gasket repair in a bottle

    I'm open to that. But I can't find any other way of explaining exhaust fumes detected by a professional in my coolant tank.

    By the way, today marks 6,500 miles since my $20 crap-in-a-can fix.

  9. #174
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    Re: Sucessful Northstar head gasket repair in a bottle

    Quote Originally Posted by ksmay71 View Post
    I'm open to that. But I can't find any other way of explaining exhaust fumes detected by a professional in my coolant tank. .
    Begs the question: Have you done a recent test for exhaust gases in the surge tank ?

  10. #175
    ksmay71 is offline Cadillac Owners Member
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    Quote Originally Posted by Submariner409 View Post

    Begs the question: Have you done a recent test for exhaust gases in the surge tank ?
    Not since the first time. And strangely, the two or three times I have opened the tank it seems to be unusually pressurized. Kind of like it was before the fix.

  11. #176
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    Re: Sucessful Northstar head gasket repair in a bottle

    Quote Originally Posted by ksmay71 View Post
    Not since the first time. And strangely, the two or three times I have opened the tank it seems to be unusually pressurized. Kind of like it was before the fix.
    Yeah you're screwed. Unusually pressurized indicates exhaust gasses in the surge tank.

    That being said, you did well by getting another 6,500 miles out of it, if you did have an HG related issue to begin with. Whatever works for you, it's your car and your money.

  12. #177
    ksmay71 is offline Cadillac Owners Member
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    Heads up: me and my "screwed" car just drove from Mesa to Vegas and back. I know it was risky, but I didn't think it would be right to fly to the SEMA show.

    FYI, I manned the SEMA Action Network booth. If you want notification when laws affecting the car hobby are being considered in your state, visit www.semasan.com/join and put in your info. No spam, and you'll join 65,000 other car nuts who help keep us and our smokin' hot rides legally on the road.

    ----------

    And I just hit 8,000 miles since the fix. If anyone has any alternative explanations for what my problem was, I'm open to that.

  13. #178
    rodnok01's Avatar
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    Quote Originally Posted by ksmay71 View Post
    ----------

    And I just hit 8,000 miles since the fix. If anyone has any alternative explanations for what my problem was, I'm open to that.
    Pure dumb luck, but hey sometimes luck is all you need. I drove a car with rod knock for years and would have sworn it would blow any minute.

    You prob have a very minor HG problem and along with your fix and flushing the system has stabilized it. Still wouldn't use myself.

  14. #179
    SpawnX is offline Cadillac Owners Member
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    Re: Sucessful Northstar head gasket repair in a bottle

    I just bought a 99 eldorado etc that Idled hot. The thermostat was missing. Replaced the thermostat. Idle ran good but when i kept RPM at 2000 it got too hot. So next thing I changed was water pump. The original made slight noise. It seems the problem is fixed. I let fans turn on, kept engine cool. Then i kept RPM at 2800 and it didnt even reach 3/4 temperature. Took the car for a ride and i almost overheated, thermostat is now stuck closed I replaced it again.

    I changed:
    1. thermostat x2
    2. waterpump
    3. radiator


    I am going to research purge valve clogged. Then i am going to try K&W Nanotechnology gasket sealant.

    The car seems to run good when moving but at idle (red lights) it overheats with no sign of cooling. Fan speeds do reach max.

    Oil is clean no signs of smoke no coolant loss. But now my dashboard says low coolant level and its topped off.

  15. #180
    Ranger's Avatar
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    Re: Sucessful Northstar head gasket repair in a bottle

    Quote Originally Posted by SpawnX View Post
    I am going to research purge valve clogged.
    There is no "valve". It's simply a purge (vent) line.


    Then i am going to try K&W Nanotechnology gasket sealant.
    Have you not read all the advice given over and over again?

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