Temp gauge rapid movement.
Printed From: CorrectCraftFan.com
Category: General Correct Craft Discussion
Forum Name: General Discussion
Forum Discription: Anything Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35527
Printed Date: April-27-2024 at 4:45pm
Topic: Temp gauge rapid movement.
Posted By: seacamper
Subject: Temp gauge rapid movement.
Date Posted: March-12-2015 at 12:58am
Hey All,
My GT40 powered 99 Air Nautique has a temp gauge that moves up to 185 then back to 160 over maybe a 3 to 5 minute cycle. No temps are being exceeded, its just that it has only started it over the past month or so. Is it anything I should be worried about??
Tom
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1980 Ski Nautique Boat Bar
1988 Mastercraft Tristar Open Bow
1988 Mastercraft Tristar Closed Bow
1969 Seacamper Houseboat
1986 Harris Pontoon
2004 Seadoo GTX SC + Flydive Xboard
1999 Adventurecraft
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Replies:
Posted By: storm34
Date Posted: March-12-2015 at 1:45am
Posted By: jbear
Date Posted: March-12-2015 at 2:08am
I guess Chris doesn't think so!
john
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"Loud pipes save lives"
AdamT sez "I'm Canadian and a beaver lover myself"...
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Posted By: lewy2001
Date Posted: March-12-2015 at 6:44am
Tom when does it happen?? After a long ski run?? or while idling ??
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If you're going through hell, keep going
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<a href="http://www.correctcraftfan.com/diaries/details.asp?ID=5685" ta
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Posted By: Smithfamily
Date Posted: March-12-2015 at 8:06am
I would check the wires/ connections.
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Js
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Posted By: 8122pbrainard
Date Posted: March-12-2015 at 8:18am
Tom,
Mark has a good point. If his question is what is happening, the temp swing is normal.
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54 Atom
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64 X55 Dunphy
Keep it original, Pete
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Posted By: Gary S
Date Posted: March-12-2015 at 9:59am
Out of 2 PCM's and 1 HM I have never seen them swing a 25 degree change except on shut down. Something is up especially if it's hasn't done it before. Get yourself a IR thermometer and check it while it's happening and go from there.
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http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS
95 Nautique Super Sport
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Posted By: Hollywood
Date Posted: March-12-2015 at 10:01am
Check the impeller. Get a pair of gaskets and compare both thermostats in a pot of water on the stove. Science project for the boys!
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Posted By: TRBenj
Date Posted: March-12-2015 at 10:35am
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A 25deg fluctuation on a PCM is a little above what id prefer to see. A cooling system in good shape wouldn't see that big of a swing. That's assuming the temp is going up after a hard run and return to idle. No other scenario should cause any fluctuations at all.
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Posted By: seacamper
Date Posted: March-12-2015 at 5:52pm
I guess it was a bad thermostat. Replaced it with a new gasket, and all is well.
Thanks Guys,
Tom
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1980 Ski Nautique Boat Bar
1988 Mastercraft Tristar Open Bow
1988 Mastercraft Tristar Closed Bow
1969 Seacamper Houseboat
1986 Harris Pontoon
2004 Seadoo GTX SC + Flydive Xboard
1999 Adventurecraft
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