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PostPosted: Sun Oct 26, 2014 12:56 pm 
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Joined: Mon Jun 10, 2013 8:59 am
Posts: 793
Hey guys, have a lil problem that maybe someone can help. I am getting bubbles in the resevior once the Engine heats up. If I crimp the line coming from the radiator fill cap the bubbles stop. This leads me to believe that the radiator cap is bad. If I empty the resevior and run the Engine, coolant fills up the resevior thus pulling coolant out of the radiator:(

Any help or suggestions will be much appreciated!


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PostPosted: Sun Oct 26, 2014 1:24 pm 
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Joined: Thu Nov 27, 2008 1:45 pm
Posts: 1085
Location: Cedar Crest New Mexico
Leaking head gasket?


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PostPosted: Sun Oct 26, 2014 1:29 pm 
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Joined: Mon Oct 25, 2004 10:02 am
Posts: 2865
Location: East Peoria IL
Any pepper looking flaks in the coolant?


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PostPosted: Sun Oct 26, 2014 1:34 pm 
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scpilot66 wrote:
Leaking head gasket?



I think it's my head gasket or radiator cap.
Need to do some more investigating!


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PostPosted: Sun Oct 26, 2014 1:35 pm 
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rmesser wrote:
Any pepper looking flaks in the coolant?



No sir, coolant is clean.


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PostPosted: Sun Oct 26, 2014 1:37 pm 
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Location: Cedar Crest New Mexico
Smell inside the radiator, does it smell like exhaust at all?


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PostPosted: Sun Oct 26, 2014 1:46 pm 
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scpilot66 wrote:
Smell inside the radiator, does it smell like exhaust at all?


I just mowed the grass and I can't smell a thing:(
Let me run her and smell in a lil bit.


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PostPosted: Sun Oct 26, 2014 2:09 pm 
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Joined: Thu Jun 16, 2005 7:19 pm
Posts: 2245
Location: Chandler, AZ
Are you loosing coolant out of the reservoir? Is the radiator low on coolant when you take the cap off? I ask because it's normal for coolant to run back and forth between the reservoir and radiator as the system heats up and cools off. It's not normal to loose coolant from the reservoir though.


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PostPosted: Sun Oct 26, 2014 2:16 pm 
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Joined: Thu Jun 16, 2005 7:19 pm
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Location: Chandler, AZ
Also Hoser has a great trick of extending the reservoir over flow hose up to the front of the buggy so you can see if it's puking coolant out while your riding. That way you are not guessing if your over heating or lost a head gasket. You can visually see if coolant is puking out.


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PostPosted: Sun Oct 26, 2014 3:17 pm 
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afastcar wrote:
Are you loosing coolant out of the reservoir? Is the radiator low on coolant when you take the cap off? I ask because it's normal for coolant to run back and forth between the reservoir and radiator as the system heats up and cools off. It's not normal to loose coolant from the reservoir though.



Coolant is going into the resevoir and not returning to the radiator once cooled down.


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PostPosted: Sun Oct 26, 2014 3:17 pm 
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afastcar wrote:
Also Hoser has a great trick of extending the reservoir over flow hose up to the front of the buggy so you can see if it's puking coolant out while your riding. That way you are not guessing if your over heating or lost a head gasket. You can visually see if coolant is puking out.



Please share:()


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PostPosted: Sun Oct 26, 2014 4:00 pm 
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afastcar wrote:
Are you loosing coolant out of the reservoir? Is the radiator low on coolant when you take the cap off? I ask because it's normal for coolant to run back and forth between the reservoir and radiator as the system heats up and cools off. It's not normal to loose coolant from the reservoir though.



Confirmed that the radiator is puking into the resevoir and then the resevoir is puking out the over flow. Fluid begins to look frothy once this happens!


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PostPosted: Sun Oct 26, 2014 4:38 pm 
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Swapped radiator caps and still had same problem. We can rule out the cap.


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PostPosted: Sun Oct 26, 2014 6:57 pm 
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Location: Chandler, AZ
Pilot bird wrote:
Swapped radiator caps and still had same problem. We can rule out the cap.


Sounds like the head gasket is bad. It's letting compression into the coolant system and forcing the coolant out.


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PostPosted: Sun Oct 26, 2014 7:06 pm 
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afastcar wrote:
Pilot bird wrote:
Swapped radiator caps and still had same problem. We can rule out the cap.


Sounds like the head gasket is bad. It's letting compression into the coolant system and forcing the coolant out.



I did replace the head gasket and problem solved. Appreciate everyone's help and input. Sometimes it's best to just get down and dirty and getter done:)
Still need to test drive under load and see how she performs.


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PostPosted: Sun Oct 26, 2014 7:17 pm 
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Joined: Mon Oct 25, 2004 10:02 am
Posts: 2865
Location: East Peoria IL
Man you didn't waste any time on that job. Any photos of the failed gasket?


I had a Ford Van that the head gasket failed on - similar to your problem. the damn gasket was acting like a check valve, letting pressure into the cooling system but no coolant was leaking into the cylinder. I was out of state on vacation when it failed. If I could have come up with a way to run the van with a open cooling system I could have kept driving. Problem with a open system - no pressure and the coolant will boil. The pressure raises the boiling point. anyway, glad you figured it out.


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PostPosted: Sun Oct 26, 2014 9:29 pm 
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rmesser wrote:
Man you didn't waste any time on that job. Any photos of the failed gasket?


I had a Ford Van that the head gasket failed on - similar to your problem. the damn gasket was acting like a check valve, letting pressure into the cooling system but no coolant was leaking into the cylinder. I was out of state on vacation when it failed. If I could have come up with a way to run the van with a open cooling system I could have kept driving. Problem with a open system - no pressure and the coolant will boil. The pressure raises the boiling point. anyway, glad you figured it out.



The job is a quick 10-15 minutes:)
I too am glad it worked out, just hope there are not any more problems!


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