[Amc-list] Overflow, overflowing

[Keith Evenson <epd@xxxxxxxxxxxx>]

So I have talked to many mechanics at various dealers and private  
shops and nobody can give me a good answer to why my overflow tank on  
my radiator is overflowing. Here is the story, about a month ago I  
drove my 70 Jav with a 360 (slightly built) to my brothers shop 15  
miles away. It was a nice night so I was driving a bit harder then  
normal just having fun with my car. When I got there my overflow tank  
was spraying out the overflow hole. I have stared with simple repairs  
and gone up, I have replaced the line to the overflow tank and  
cleaned it to make sure it is not blocked and has a tight connection  
to the radiator. I have replaced my rad. cap, I have taken out the  
thermostat. I have done multiple pressure tests on the rad. to see if  
it builds pressure and it does not. I do not have any white smoke or  
coolant in my oil. I have driven it up to 80 miles with out getting  
on it and the level in my overflow tank does not change but, I can  
take it out when it is cold and drive it hard for 2 miles (a few hard  
starts off the line) and it will be overflowing before I can get the  
hood open. I was just told to put a 15lb cap in the radiator since it  
is not a stock motor it may need a higher pressure cap.  I have been  
told it was the head gasket or cracked head, but since it does not  
build pressure when I drive it without getting on it that does not  
seem like the problem either. Could I be looking at some kind of  
vacuum leak? Any help would be great. I don't want to pull my heads  
if I don't have to.



Keith Evenson




-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://splatter.wps.com/pipermail/amc-list/attachments/20081028/10ba82ad/attachment.htm 
_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://splatter.wps.com/cgi-bin/mailman/listinfo/amc-list