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Old 13 June 2012, 23:16   #1
Country: Cyprus
Length: 5m +
Join Date: Jun 2008
Posts: 5
Suzuki DF60

I am having an intermittent over heat on my DF60. Seems to happen when the engine is under peak loads mainly ie when there is a full load of passengers.

The impeller is fine and so is the tell tale can someone suggest possible processes of elimination and the order in which to do things please.


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Old 14 June 2012, 01:11   #2
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Country: UK - Scotland
Town: Fort William
Boat name: Red Mist
Make: Northcraft 5.8
Length: 5m +
Engine: Suzuki DF 140
MMSI: 235101721
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Have you checked the thermostat is working as it should? It's maybe not opening far enough. I've seem this on a Yamaha.

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Old 14 June 2012, 02:25   #3
Country: Cyprus
Length: 5m +
Join Date: Jun 2008
Posts: 5
I actually have the thermostat out. Water temp here is 30 odd degrees when the rib is in use.
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Old 14 June 2012, 02:43   #4
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Country: UK - Channel Islands
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Boat name: La Frette
Make: Osprey Vipermax
Length: 6m +
Engine: 200 Suzzy
Join Date: May 2004
Posts: 2,797
I had an unexplained overheat on a DF90. Never found the true cause and the impeller looked sound. However a a last resort I put a new impeller in and it was fine thereafter. I suspect the impeller was slipping on the shaft/key.
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