Water pump not sucking
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=50894
Printed Date: April-20-2024 at 7:43am
Topic: Water pump not sucking
Posted By: Tbarile
Subject: Water pump not sucking
Date Posted: September-06-2022 at 10:23am
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I have an 02 ski Nautique with the GT40. Went to ski this morning and boat overheated. Immediately assumed it was the impeller but when I took the pump apart the impeller was in great shape. Reinstalled and it’s still not sucking water. I’ve check hoses and all seem right. What am I missing? Thanks |
Replies:
Posted By: desertskier
Date Posted: September-06-2022 at 10:50am
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I had an impeller failure recently. The impeller looked fine but the bonding between the rubber and the metal hub had failed so the impeller wasn't spinning just the hub. A few other members have experienced this failure also. Otherwise you may have an air leak between the pump and the pickup. Do a forum search. Lot's of cooling system info on this site. ------------- 92 SN - Owned since 93 99 Pro Air 89 SN - Went to live on a lake in Texas 75 Donzi 16 - Sold in 93 |
Posted By: KENO
Date Posted: September-06-2022 at 2:10pm
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Hook a hose from your pump suction to a 5 gallon bucket of water on the floor of the boat and start the engine. You'll know very shortly after that if the pump is working.  It pumps roughly 5 gallons/minute at idle It'll at least tell you if the problem is pump related or is an air leak or blockage before the pump
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