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Old 26 April 2007, 12:18   #1
Country: UK - England
Town: London
Boat name: varies
Make: n/a
Length: n/a
Engine: varies
Join Date: May 2004
Posts: 128
Mercruiser 120hp diesel - Engine gauge panel

Has anyone with the 120hp diesel had any problems with these?

At the end of last season, all but the tacho failed, but having been in storage over the winter have started working again. Methinks dampness may have been an issue. But seperatly and a long time previous to this failure, the engine hours meter, a small lcd readout below the tacho, packed up. This still hasn't come back to life. So x2 questions:

1. Is there any way we can plug something in to get the true engine hours (we have installed a standalone mechanical hours meter in the interim)?

2. Do these units fail often? Because if not we will replace it. Application is a workboat and takes alot of weather and abuse, so if they are delicate we'll install more robust instruments.

Engine has about 300hrs, we think...!



PS. We had a Merc 115hp outboard before this and the gauges on that packed up in very short order as well (<8mths). The yamaha 115 that we had for nearly 10 years prior, never had a problem and they were possible the first lcd guages on an o/board installation...

Tideway is offline   Reply With Quote
Old 26 April 2007, 16:43   #2
Country: UK - England
Town: east cowes
Make: academic
Length: no boat
Engine: fresh air
Join Date: Sep 2003
Posts: 541
My display disappeared for a while, then came back. Dont know why, but the reading was accurate. I think the data is stored on the tacho. So, new tacho, zero hours reading.

nik is offline   Reply With Quote
Old 27 April 2007, 03:35   #3
Country: Ireland
Town: Galway, West Eire
Make: Cranchi
Length: 5m +
Engine: 2 x Volvo KAD300
Join Date: May 2006
Posts: 661
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My hour/voltmeter disappeared during the winter, returned after about an hours use... Weird, just 'dampness' I guess
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