Brass drain plug vs rubber

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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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Jay_L Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: October-14-2019 Location: SF Bay Area Status: Offline Points: 7	Post Options Post Reply Quote Jay_L Report Post Thanks(0) Quote Reply Topic: Brass drain plug vs rubber 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 )

Hollywood Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13523	Post Options Post Reply Quote Hollywood Report Post Thanks(1) Quote Reply 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.

8122pbrainard Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045	Post Options Post Reply Quote 8122pbrainard Report Post Thanks(1) Quote Reply 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.
	54 Atom 77 Tique 64 X55 Dunphy Keep it original, Pete <

Jay_L Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: October-14-2019 Location: SF Bay Area Status: Offline Points: 7	Post Options Post Reply Quote Jay_L Report Post Thanks(0) Quote Reply Posted: February-28-2020 at 6:53pm
	That makes sense. Thanks for all the great info !

Brass drain plug vs rubber

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