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Water temperture V6

cgentile

New member
Okay
running silent choice o


Okay
running silent choice on my Donzi. 1994 V6. Always runs 150 for temp.
Now the Temperture rises when running above 3800rpm and water stops pumping out headers by 80%. Had to shut it down to let it cool.
No weeds impellar new and just checked. Just started this problem.
And is not consitent . Is it possible the thermostat is closing down when running it hard?
I did notice just before last week the temperture would rise slightly when running wot then settle back.
Fresh water running.
When the Headers are open it pukes a ton of water so it cannot be blocked.
Hoses are all new and in great shape. The corsa silent choice system is new last year and was professionally done of course.
Just put a new impellar in to be sure. thought it was fixed and then the problem has come back .
?
 
"doing this both thru headers,

"doing this both thru headers, and prop? if not, look for blockage. if so maybe head gasket."
 
"Service the "fresh water&

"Service the "fresh water" cooling system; new T'stat, flush and refill coolant and clean out the heat exchanger tubes."
 
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