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little bit of a problem

  • Thread starter Thread starter Modular2v
  • Start date Start date Oct 24, 2006

Modular2v

Founding Member
Jun 30, 2002
3,222
23
99
oklahoma
Oct 24, 2006
#1
  • Oct 24, 2006
  • #1
My car keeps blowing the seals out of radiator caps! Yes, i have an overflow tank! It seems to only do it on the bottle though! Could it be that the nitrous is finding a "weak spot" and seaping past the headgaskets into a waterjacket causing the preasure to sky rocket? Im not burning any or losing any coolant at all. Im kinda stumped on what to do? Maybe a higher PSI cap? The car will officially be down for the winter as of sunday (have one last race to attend this saturday)
 

bullitstang1313

Member
Jan 21, 2003
713
0
16
Indianapolis / Columbus, Indiana
Oct 24, 2006
#2
  • Oct 24, 2006
  • #2
I'd check the coolant to see if there are any combustion gases in it. Sounds like your pressurizing the coolant abnormally.
 

Modular2v

Founding Member
Jun 30, 2002
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99
oklahoma
Oct 24, 2006
#3
  • Oct 24, 2006
  • #3
bullitstang1313 said:
I'd check the coolant to see if there are any combustion gases in it. Sounds like your pressurizing the coolant abnormally.
Click to expand...
Thats what i was thinking. . . . but how is the question? I dont think im turning the water pump to hard or anything
 

bullitstang1313

Member
Jan 21, 2003
713
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Indianapolis / Columbus, Indiana
Oct 24, 2006
#4
  • Oct 24, 2006
  • #4
My thought is that some combustion gases are leaking past the headgasket into the cooling jackets. This seems odd that you aren't burning any coolant though. Do your temperatures look like they are getting high? I really hate coolant related problems, they always seem to stump me.
 

Modular2v

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Oct 24, 2006
#5
  • Oct 24, 2006
  • #5
the car never gets over 185 degrees!!!!
 

Modular2v

Founding Member
Jun 30, 2002
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oklahoma
Oct 24, 2006
#6
  • Oct 24, 2006
  • #6
bullitstang1313 said:
My thought is that some combustion gases are leaking past the headgasket into the cooling jackets. This seems odd that you aren't burning any coolant though. Do your temperatures look like they are getting high? I really hate coolant related problems, they always seem to stump me.
Click to expand...
this is what im thinking, it just seems weird that its only doing this on the bottle. . . i guess i could do a leakdown and compression test
 

Modular2v

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Oct 25, 2006
#7
  • Oct 25, 2006
  • #7
anyone else?
 

Modular2v

Founding Member
Jun 30, 2002
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oklahoma
Oct 25, 2006
#8
  • Oct 25, 2006
  • #8
i think its the headgasket
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Oct 25, 2006
#9
  • Oct 25, 2006
  • #9
Is the surface perfect on the radiator neck? Once the system gets up to full pressure is when the leaks can occur.

If you have a cooling system pressure tester you can ensure that the system holds pressure. I'd go over the radiator and cap sealing surfaces first though.

Good luck.
 

Modular2v

Founding Member
Jun 30, 2002
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oklahoma
Oct 25, 2006
#10
  • Oct 25, 2006
  • #10
HISSIN50 said:
Is the surface perfect on the radiator neck? Once the system gets up to full pressure is when the leaks can occur.

If you have a cooling system pressure tester you can ensure that the system holds pressure. I'd go over the radiator and cap sealing surfaces first though.

Good luck.
Click to expand...
Im going to try a higher quality radiator cap tonight
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
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69
B.C. Canada
Oct 25, 2006
#11
  • Oct 25, 2006
  • #11
There is such a thing call head lift. Nitrous increses the compression ratio of your cylinder's by a lot. I do believe this is what is happening to you. Time to get a better set of head gaskets and maybe thinking about studs if you engine does not already have them.
 

Modular2v

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Jun 30, 2002
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Oct 26, 2006
#12
  • Oct 26, 2006
  • #12
86bluecobra said:
There is such a thing call head lift. Nitrous increses the compression ratio of your cylinder's by a lot. I do believe this is what is happening to you. Time to get a better set of head gaskets and maybe thinking about studs if you engine does not already have them.
Click to expand...
this crossed my mind also......i already have heads studs lol. Its ok the car is going to be down for this winter as of sunday anyway. . . motor is getting pulled, whole car is getting body work/painta and a cage is going in!!!!! I promised myself that if i pulled the heads off this motor that i would be puttin a set of victor jrs back on it! So if anyone has any for sale let me know! I would buy used but i can really only swing about 950$
 

bubba-dough

Active Member
Dec 28, 2004
1,044
2
38
Indiana
Oct 26, 2006
#13
  • Oct 26, 2006
  • #13
I would check the coolant system first to make sure that nothing is failing there. But I honestly would think it was a headgasket. What kind are you using? The reason I think so is because I had a similar problem with my water pumps. I then took it to my builder and he found it to be a headgasket. I have not had one problem since. I did go to a much better headgasket and studs. Now that I think about it....do you think that may have caused my heater core to bulge out and bust which I simply bypassed for the summer and fixed this past Tuesday (in record time for me 3hrs. 15 minutes)??
 

Modular2v

Founding Member
Jun 30, 2002
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99
oklahoma
Oct 26, 2006
#14
  • Oct 26, 2006
  • #14
bubba-dough said:
I would check the coolant system first to make sure that nothing is failing there. But I honestly would think it was a headgasket. What kind are you using? The reason I think so is because I had a similar problem with my water pumps. I then took it to my builder and he found it to be a headgasket. I have not had one problem since. I did go to a much better headgasket and studs. Now that I think about it....do you think that may have caused my heater core to bulge out and bust which I simply bypassed for the summer and fixed this past Tuesday (in record time for me 3hrs. 15 minutes)??
Click to expand...
very possible! I hate cooling system problems as they are just a pain in the ass!
 

Modular2v

Founding Member
Jun 30, 2002
3,222
23
99
oklahoma
Oct 27, 2006
#15
  • Oct 27, 2006
  • #15
well im pulling the 331 out sunday and sitting it on a stand until i can put some victor jrs on it. In the meantime i will be putting a gt40p headed 302 in just so the car is not sittin collecting dust! I will pill to kill the 302 of course
 

Roland69

Sergeant Tangnet
Sep 17, 2005
2,867
2
58
Port Elgin, Ontario
Oct 27, 2006
#16
  • Oct 27, 2006
  • #16
sounds like you are getting some head lift
 
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