Removing Yanmar 3YM20 Mixing Elbow

[Ziggy]

Originally Posted by Wanderlust

Actually, from the photo it looks like the top thread is left hand and the lower one is right hand, which would align with Badsanta's recollection.

Thank you all for excellent suggestions and information. I agree with Wanderlust--from the photo it looks like the top thread is left hand, so I was actually tightening the elbow when I was trying to take it off. Seems like the universal advice is to remove the whole assembly, put it in a vise, and liberally apply heat and brute force. However, I think I'll defer it to the end of the sailing season.

[Ziggy]

Originally Posted by a64pilot

When you put the new one in, I'd use this to help avoid this in the future

Specialty Lubricants - Anti-Seize : Permatex® Nickel Anti-Seize Lubricant

This looks like the right stuff--thank you!