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<DIV><FONT size=2>Unless you were really driving it hard the 7lb cap wouldn't
have been a problem - if it IS holding 7lb, although the correct cap would
be better.</FONT></DIV>
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<DIV><FONT size=2>If it took half a gallon to top it back up it must have
been half empty. The sludge could have been because insufficient
coolant was boiling, but the question is where the coolant went since you last
checked the level. Either you have a coolant leak, or maybe a headgasket
leak which is boiling it out.</FONT></DIV>
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<DIV><FONT size=2>In my experience the temp gauge rarely shows a problem when
you are losing coolant from a system leak, unlike when the engine really is
running hot and boiling coolant out that way, in which case I'd expect to see
signs of that brown staining round the outlet from the rad over flow port or
hose. Head gasket leaks can result in significant temp gauge
oscillation.</FONT></DIV>
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<DIV><FONT size=2>Timing? I have my doubts.</FONT></DIV>
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<DIV><FONT size=2>PaulH.</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
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<DIV id=ydp3bb4de78yiv2637017514>I have been having problems with my MGB GT
running hot. To start out with the simplest things first, I removed the
radiator cap and found what you see in the picture. Add to that it is a
7 psi cap. My car is a 1969 which requires a 10 psi cap. After
running out two tanks of gas it took half a 50/50 mix antifreeze container to
fill the system back up. Checking the timing is
next.</DIV></DIV></BLOCKQUOTE></BODY></HTML>