also,
A correction to previous post you should use demineralized water not distilled since distlled is "mineral hungry" and may attack alum parts.
air bubble in system?
Air leaks on vacuum side of water pump allow air to get in to cause foaming and bubbling. leads to corrosion and insulates the block and radiator from the coolant. Visual inpection and pressure test to check for this.
Don't forget ignition timing and carburetion as mentioned before., dragging brakes, slipping clutch, and basically anything that adds heat into the system. Be sure to test for exhaust leaks into coolant as mentioned before. Either by a special kit to analyze CO from the radiator or alternately to disconnect water pump belt only briefly and observe to see if bubbles appear in coolant that indicates a leak or a hot spot.
Coolant recovery tank in good shape and hose still attached internally?
Has enginge been changed and original radiator is too small for job?
Excessive paint on radiator, damaged fins?
Thermostat installed upside down?
This website
http://www.grapeaperacing.com/GrapeA...lings/heat.pdf has a very interesting write up
on the relationship of heat to power.
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1967 Firebird 400 conv T400 3.08, 1989 Formula 350 700r4 3.27
[This message was edited by cscottfergus on September 04, 2003 at 05:31 AM.]
[This message was edited by cscottfergus on September 04, 2003 at 05:43 AM.]
[This message was edited by cscottfergus on September 04, 2003 at 05:49 AM.]
[This message was edited by cscottfergus on September 04, 2003 at 05:56 AM.]