Another cold coolant leak.

[BrileyR]

I noticed coolant leaking from the left rear cylinder...

 

http://i868.photobucket.com/albums/ab243/BriRit/2011-03-28_16-40-52_203.jpg

 

I removed the side cover from the cylinder and found this brass looking plug leaking coolant. What is it, and how do I fix it?

 

http://i868.photobucket.com/albums/ab243/BriRit/2011-03-28_16-45-54_601.jpg

[dingy]

The brass threads are only there to assist in removing plug. A spark plug end will thread in there and it will pull straight out. This goes to the cavity surrounding the cylinder sleeve.

 

P/N 90338-11152-00

 

About $6

 

Gary

[BrileyR]

Thanks for the info. So it's a freeze plug? Should I go ahead and replace them all?

 

Thanks, Briley.

[Dano]

Yep, they're 20+ years old. http://www.partshark.com will have the best prices for you.

[Freebird]

I don't know how much they are at Partshark but they are 4.74 at boats.net

 

http://www.boats.net/parts/detail/yamaha/Y-90338-11152-00.html

[twigg]

I don't know how much they are at Partshark but they are 4.74 at boats.net

 

http://www.boats.net/parts/detail/yamaha/Y-90338-11152-00.html

 

Unusually, boats.net are the cheapest I have found too.

 

Must be their birthday or something.