Engine safety shutdown circuit ? ? ?

[RichardEntrekin]

Kyle,

You probably found this already.  http://www.isspro.com/installation/IS049.pdf

[kyle4501]

Thanks Richard.

According to what I have found, the alarms go off at one setting & shut down at another
For 2 stroke DD
- alarm at 6 psi & shut down at 3 psi oil pressure
- alarm at 204 F & shut down at 210 F


The automatic shut down has an over ride switch.

I'm not sure I want something turning my engine off - I've had some false stops that were inconvenient at best and dangerous at worst.

A functioning warning system is better than nothing.

[luvrbus]

Kyle, the radiator sensor and light on your coach is for low level water that one will not shut the engine down,you should have 2-Kysor/Cadillac alarm stats 1 ea on each thermostat housing with 3 or 4 wires they come in different temperatures ranges up to 225F 
I don't know what you have, it will have the range marked on the alarm stat.Low oil pressure buzzer or the warning light are to warn the operator to shut the engine down if oil pressure is below 3 lbs.
I never saw a mechanical 8v92 wired to shut down for low oil pressure unless it was a Murphy system and you needed to push the button by hand on the gauge past 5 lbs to start the engine.
On the alarm stats it has to complete the circuit to shut your engine off,heat is the only thing that will shut your engine down if it has the Detroit Kysor/Cadillac alarm stats not low oil pressure that one is on you     

[kyle4501]

Thanks luvrbus. The pass side T-stat housing has a small sending unit with 1 terminal. The drive side T-stat housing has 4 terminals. The upper radiator tank has 2 sensors - a 1 terminal, & the other has 2 terminals. There are 2 oil sending units above the starter, again a single terminal & a dual terminal.

I can't get to the 4 terminal sensor in the T-stat well enough to see any labels, hope to find out this weekend.

[luvrbus]

1 terminal senders are usually for the gauge 2 terminals are for the warning light or buzzer