gas sending unit
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=30317
Printed Date: November-18-2024 at 6:57am
Topic: gas sending unit
Posted By: Dellavalle
Subject: gas sending unit
Date Posted: June-17-2013 at 2:41pm
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1982 /2001 model / gauge works when I jump out the contacts, power to sender, no gauge movement unless I place probe tester power of sending unit and ground, then gauge goes to 1/4 plus reading. Tank has a good ground, sending unit now has positive and negative( ground ) feeds, no better with the gauge. Do I have to remove the tank to remove the sending unit ? And what type of new sending unit ? Thanks all ! |
Replies:
Posted By: Bri892001
Date Posted: June-17-2013 at 3:36pm
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I don't think you'll have to remove the tank. You'll definitely have to get the seat out of the way. Here is a sending unit: http://www.n3boatworks.com/catalog_product_detail.asp?cat=5045-91698&product=868468" rel="nofollow - http://www.n3boatworks.com/catalog_product_detail.asp?cat=5045-91698&product=868468 N3BoatWorks offers a 10% discount to CorrectCraftFans. |
Posted By: 8122pbrainard
Date Posted: June-17-2013 at 8:31pm
Dellavalle, You should NOT have a positive connection to the tank sender. The sender is the ground source for the gauge. Positive to the gauge, sender wire from it to the tank. If the sender wire is removed and grounded removing all the resistance of the sender, the gauge should peg at max. What are the "contacts" you are jumping? ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Dellavalle wrote:Posted By: OldSchoolBlue84
Date Posted: June-17-2013 at 8:46pm
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Replaced mine a couple of weeks ago and was easy, no removal of the tank. Just have a small socket wrench to reach the back screw. Bought mine from nautique skins, fit like a glove, very close to original. When the needle gets pegged to full when you take the positive cable (red) and make contact with the ground (black) while the ignition is at the on position, then you have a bad sender. Good luck... ------------- Kostas http://www.correctcraftfan.com/diaries/details.asp?ID=6700&sort=&pagenum=1" rel="nofollow - 1984 Ski Nautique 2001 |
Posted By: 8122pbrainard
Date Posted: June-17-2013 at 9:00pm
I don't think you should be connecting a positive to a negative!!  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Dellavalle
Date Posted: June-17-2013 at 9:33pm
| Sending unit, pink wire ( red ) to screw down post,comes from the gauge. Tank is grounded. with power on, at the gauge, should read full if pink wire is grounded directly to tank, not the post, indicating a bad sender, am I correct ? |
Posted By: Bri892001
Date Posted: June-17-2013 at 9:51pm
That sounds right. But, that Pink, not Red, is a very important distinction. |
Posted By: OldSchoolBlue84
Date Posted: June-17-2013 at 9:51pm
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Correct, that is what I have been told. Correction, reviewed my pic and yes it was a pink wire, not red. Sorry for the confusion. ------------- Kostas http://www.correctcraftfan.com/diaries/details.asp?ID=6700&sort=&pagenum=1" rel="nofollow - 1984 Ski Nautique 2001 |
Posted By: gun-driver
Date Posted: June-17-2013 at 11:25pm
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Could be a saturated float happened to my '85 replaced cork with a new foam float works like a charm. Pull the sending unit out turn on the key, raise and lower the float arm look for reading on the gauge. |
Posted By: gR@HaM
Date Posted: June-18-2013 at 9:27am
Dellavalle, please take a photo of how you are wiring it - not only will it help others understand you question but will also aid me as cant get mine working since removing the tank!!   ------------- '82 Ski Tique |
Posted By: turningpoint84
Date Posted: June-18-2013 at 4:05pm
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If i were ordering a sending unit I'm getting one of these....... http://www.correctcraftfan.com/forum/forum_posts.asp?TID=26697&title=fuel-sender-replacement" rel="nofollow - http://www.correctcraftfan.com/forum/forum_posts.asp?TID=26697&title=fuel-sender-replacement ------------- Proud 1968 mustang owner and now http://www.correctcraftfan.com/diaries/details.asp?ID=6454&sort=&pagenum1" rel="nofollow - 1970 Mustang |
Posted By: 8122pbrainard
Date Posted: June-18-2013 at 7:46pm
Graham, Is the tank grounded to the engine??  ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: baitkiller
Date Posted: June-18-2013 at 8:03pm
Pete, that is a different wire for a different reason. Dont confuse him. ------------- Jesus was a bare-footer............. |
Posted By: Bri892001
Date Posted: June-18-2013 at 9:20pm
Well, not exactly different. Temp senders and oil pressure senders work by being a variable resister to ground (the engine block). Fuel senders also work by being variable resisters to ground, again the engine block. But, since the tank is not the engine block, it first needs to be grounded to the engine block. Well, if not the tank itself, then at least the outer ring part of the sender. There does seem to be some confusion around grounding the tank for reasons of spark control while fueling, and grounding the tank (or sender ring/tab) for reasons of making the sender work. That's why there is sometimes talk of being three wires back there. One is the sender wire. One is the ground that goes from tank to engine block and one is for the stern light ground. |