Originally Posted by
olgreenboat
PULL THE HEADS !
Wear not there yet . Don't take the heads off man this is a process of elimination and were not done yet .
The 2 things Im thinking it is is the VRO or power packs . Why not running hot ? Well shutting your engine off and right back on will not cool it enough to make it stop over heating in fact if it was hot and you turn it off it will in fact get 5 to 10 Deg. hotter its called carry over .
The VRO , If at high RPMs the VRO starves for oil it will set off the long tone this could also be the float bulb in the oil tank the oil float bulb could be heavy and sinking to the bottom of the tank this will set off the alarm . These floats go belly up quite often and there high for what they are . There is also a filter screen in the bottom of the oil tank if it is clogged up it will starve for oil.. There is a sensor in the VRO it's self and it will cause this to happen . The first thing i would change is the screen in the oil tank and the fuel filter under the hood . I take it they have never been changed in the 20 years of the motors life.