2016 Yamaha 242 Limited E leaking from drain plug

[IceJason]

I have a 2016 Yamaha 242 Limited E Series that is leaking from hull drain plug. I just replaced it with a new one and it still leaks from the bottom of the drain plug. Is anyone else having this issues, any suggestions?

 

[Pullen724]

Welcome to the yamaha drain plug club. Very common problem. Some suggest swapping o-ring for one slightly larger and others keep it lubed up so it remained flexible. Also make sure the receiving end is clean of all debris and smooth.

 

[Dixie Highway]

I work with o-rings in high-ish pressure (up to 500 psi) applications. The o-rings MUST be able to slide against whatever they are sealing, otherwise they stretch and roll when tension is applied. I strongly recommend a good silicone lube on the o-ring, avoid petroleum based products as they degrade EPDM (rubber).

 

[IceJason]

Thank you for the feedback, is Yamaha doing anything about the design issue or recommending a fix for us owners?

 

[Dixie Highway]

Honestly lube the plug. I noticed mine was dripping when water was in the bilge, I put silicone on the plug and have not seen a drop in the bilge since then.

 

[IceJason]

Thanks, I will silicone it up and test it tomorrow.

 

[swatski]

I have a 2016 Yamaha 242 Limited E Series that is leaking from hull drain plug. I just replaced it with a new one and it still leaks from the bottom of the drain plug. Is anyone else having this issues, any suggestions?

View attachment 94696
View attachment 94697

If the bilge was never flushed with a lot of water and/or vacuumed, when the boat was new, there is a lot of post-production debris and metal shavings that can cut up the plastic threads and damage them.
Make sure you do not have any shavings and crap in the threads.

--

 

[IceJason]

I already cleaned all of the post-production debris and metal shavings from the boat, although after I put silicone on the drain plug it looks to be all good.

Thanks,

 

[jocolo21]

Are the 2016 plugs plastic like on the 2019¿ I changed to a metal 1 , problem solved

 

[MidnightRider]

I keep a tube of this in my clean out tray area. I use on every outing on both my clean out plugs and my drain plug. I also wipe out any grit or grim inside the drain plug threads and lip before I put the drain plug in. Not sure if that will help your situation but maybe worth a try.

Amazon.com : 4oz Lube Tube - Pool Gasket Lubricant : Swimming Pool Pump Parts : Gateway

Amazon.com : 4oz Lube Tube - Pool Gasket Lubricant : Swimming Pool Pump Parts : Gateway

www.amazon.com

 

[IceJason]

Where did you get the metal drain plug from? My old 2011 Yamaha 240SX had a metal one and I never had an issue.

 

[Philip]

My plug is leaking as well. Any upgrades on this ?

 

[tdonoughue]

Did you try the lube suggestion above? That is where I would start, if you have not.

 

[212s]

As mentioned, Silicone spray lube from any auto parts store. I use it on the drain plugs and clean-out plugs. Keeps everything turning smooth and water tight. I also use it on the jetpump housings as a form of protector (don't spray the anodes) and to keep all the rubber/plastic parts lubed. Cheap and easy to use.

 

[Philip]

I sprayed the o ring w/ wd40 silicone spray - let’s c how it works. I have a spare plug as well. Wondering what the metal plug is someone referenced above

 

[Daddy Fat Sacs]

Anyone know the size of the drain plug off too their head? I would t mind investing Into a metal one

 

[Philip]

QUOTE="212s, post: 474215, member: 21731"]
As mentioned, Silicone spray lube from any auto parts store. I use it on the drain plugs and clean-out plugs. Keeps everything turning smooth and water tight. I also use it on the jetpump housings as a form of protector (don't spray the anodes) and to keep all the rubber/plastic parts lubed. Cheap and easy to use.
[/QUOTE]

I usually use white lithium as a protectant on pump etc. sticks better

 

[tdonoughue]

I like to advise a silicone gasket lube rather than the spray. Why? Because most people think silicone spray and reach for WD-40 (which is petroleum based and not silicone). Now, there is a WD-40 Silicone spray that *is* silicone. How confusing is that?

But my nice little tube of gasket lube is cheaper, I can control it better, and I use it on the pool, too.