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Original Message
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| RE: overheating |
| By Steve M - 07/11/2004 11:41:33 PM; IP 209.115.87.2 |
I had an overheating problem with my 390 and I learned a lot of things affect your temperature. 3 things that I think should be done are:
Flush the motor and radiator to make sure that everything is flowing fine.
If your timing is off, it will raise your temperature. I did not believe it when I heard this, but it is true. My timing was way off and when set properly it cooled it down. If your timing is set right, have somebody check your vacuum advance with a gauge, if it isnt functioning properly, it will mess with your timing when you give it gas. It should be at 6 degrees BTDC or 10 degrees BTDC depending on who you talk to. Maybe somebody on here can tell you which timing is better for you.
Also, you can have your new radiator cap checked to see if it is holding vacuum. For every pound of pressure you lose, you raise your temperature 7 degrees. The only reason I found this out was I had somebody look at it at a radiator shop and he said I had a wrong cap on it and he told me it should be around 14 pounds of pressure. Mine was only 9 pounds, so my temperature was fluctuating and getting hot. Also somebody told me on this board that sometimes the waterpump impeller rusts on the inside of the motor and it doesnt pump efficiently, but it looks like you just put a new pump on, so that probably isnt the problem.
Good luck and let us know what it was when you find out. |
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