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Brass drain plug vs rubber

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Category: General Correct Craft Discussion
Forum Name: Common Questions
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URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48418
Printed Date: April-29-2024 at 4:10pm


Topic: Brass drain plug vs rubber
Posted By: Jay_L
Subject: Brass drain plug vs rubber
Date Posted: February-28-2020 at 5:37pm
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 )





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
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.

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Keep it original, Pete
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Posted By: Jay_L
Date Posted: February-28-2020 at 6:53pm
That makes sense. Thanks for all the great info !



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