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Old 23 February 2005, 08:13   #1
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Optimax

Hi,

The probllem seems not to be going away.

Any ideas why my Optimax would run hot at idle and whilst pottering out of the Marina (temp guage showing 180) and then when I opened her up it immediatley cooled down and ran fine. Then when pottering back into marina same again, temp guage showing 180?

Its going in to be plugged into the diagnostic computer tomorrow however I don't have much faith in the local dealers!

Tony.
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Old 23 February 2005, 10:17   #2
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I presume you have checked the thermostats and Impeller
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Old 23 February 2005, 10:28   #3
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call fairwether marine

i understand that a thermostat fault is the problem and new ones are avalible soon

hope this helps
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Old 23 February 2005, 13:15   #4
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I have had exactly the same on a few Optimaxes, it will be the thermostats without doubt. The engine will not actually be overheating.
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Old 23 February 2005, 13:25   #5
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opti

Sounds about right as to what people have just said. If it was a water flow problem then you would have got a Low block water pressure alarm come up on the guages. Had that on a worn water Pp housing which would give a good rise in Temp at idle.
Paul
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Old 23 February 2005, 15:45   #6
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Quote:
Originally Posted by Rogue Wave
I presume you have checked the thermostats and Impeller
Hi RW,

I haven't checked the thermostats or the impeller. I presume the impeller is new as it had a complete new bottom end just proir to me buying it.

Tony.
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Old 23 February 2005, 15:53   #7
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Quote:
Originally Posted by RIVA
call fairwether marine

i understand that a thermostat fault is the problem and new ones are avalible soon

hope this helps
Thanks Riva. The local dealers have promised to call Brabus tech dept tomorrow when they have it hooked up to the diagnostic thing.

Quote:
Originally Posted by H2O Events
I have had exactly the same on a few Optimaxes, it will be the thermostats without doubt. The engine will not actually be overheating.
Hi H2O. I hope it is just the thermostat.

Quote:
Originally Posted by Paul F
Sounds about right as to what people have just said. If it was a water flow problem then you would have got a Low block water pressure alarm come up on the guages. Had that on a worn water Pp housing which would give a good rise in Temp at idle.
Paul
Hi Paul. I have a really strong tell tale so I have presumed that the impeller is pumping water OK?

Thanks again for all of your help. Hopefully I will be able to reciprocate.

Tony.
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Old 24 February 2005, 14:19   #8
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Hi,

Local dealers have confirmed that it is one of the thermostats and one of the temp sensors.

Thanks for the help.

Tony.
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