Mercruser 4.5 Block pressure Gauge.

[dogwspts]

Noticed on a new 4.5 Mercruser you can scroll to different readings one says block pressure. Is this water pump pressure ? First I have seen this on a boat..

[DCLfan]

Block Pressure - Digital readout of the water pressure inside the block.

[DCLfan]

Noticed on a new 4.5 Mercruser you can scroll to different readings one says block pressure. Is this water pump pressure ? First I have seen this on a boat..

In addition to the digital readout of the water pressure inside the block, there is also a low block pressure alarm.

[dogwspts]

Thanks guys

[dogwspts]

Watch out for bad sensors causing low block pressure

[AsLan7]

Watch out for bad sensors causing low block pressure

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Has the Marine Tech determined this was the case with your Cobalt Dwspt? You had mentioned in another thread that you cleaned the sensor but the alarm came back again.

We initially thought our alarm was from a bad sensor but determined it to be low raw water pressure due to a corroded thru hull air leak.

Ours was not under warranty. At least you got that going for you at 50 hours.

.

[dogwspts]

Thanks AsLan7 I am not seeing water in the bilge. Cleaned the sensor and water pressure was fine. Then Saturday on the way home it did it again and the pressure dropped from about 20 to 8..

[AsLan7]

Thanks AsLan7 I am not seeing water in the bilge. Cleaned the sensor and water pressure was fine. Then Saturday on the way home it did it again and the pressure dropped from about 20 to 8..

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We had no water leaks either. Just sucking air creating a low water pressure condition.

[dogwspts]

Oh thanks.