Brass drain plug vs rubber
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URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48418
Printed Date: April-05-2025 at 5:57am
Topic: Brass drain plug vs rubber
Posted By: Jay_L
Subject: Brass drain plug vs rubber
Date Posted: February-28-2020 at 5:37pm
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I have a 1987 Ski Nautique 2001 that I picked up a few months ago. The last owner was using the traditional rubber drain stop. I read someplace that since the drain plug is threaded, it is better to use a brass, screw in style drain plug. Does anyone have an opinion on this ? Also, the new brass style only turns about 4 full rotations before it won't turn anymore. Is this normal ? I have cleaned the threads and they are clean. It almost seems like the plug is tapered ? Below is an image. ( excuse the oil around the drain plug. The last owner did a sloppy job of changing the oil ) 
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Replies:
Posted By: Hollywood
Date Posted: February-28-2020 at 5:44pm
| Yea it’s pipe thread, which is tapered. I don’t think using a rubber expansion plug is a good idea at all (which is not for tapered holes). 4 turns is plenty. |
Posted By: 8122pbrainard
Date Posted: February-28-2020 at 5:47pm
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Jeremy, Evidently the PO lost the plug and went back yard hack with the rubber. Go with the brass threaded. Yes, the threads are tapered since they a 3/4" NPT (pipe threads). The taper is what seals pipe threads. ------------- /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: Jay_L
Date Posted: February-28-2020 at 6:53pm
| That makes sense. Thanks for all the great info ! |