So my Yanmar 3YM20 engine is pretty new ~600 hrs – which for a diesel is barely just getting out of bed in the morning. A couple of weeks ago I noticed some water in the bilge and back traced it to the seawater pump on the engine. The hoses were my first suspects but they turned out to be fine.
I pulled the pump and found it was leaking from one of the seals around the bearing on the shaft. After doing some research I had three options:
- Rebuild the pump myself
- Buy a new pump
- Have somebody else rebuild it
I could have rebuilt it myself but I don’t have a bearing press. Yes…I know I could constructed a homemade press using a rudimentary lathe but the it seemed like a hassle and something with lots of fiddly bits and parts in freezers that I’m prone to screw up.
I called the local Yanmar dealer and gave them the part number.
“We don’t have that and we don’t know what it is… can you send us pictures?”
Are you serious? I sent them pictures.
“Hmm…never seen one like that before…not in our books…don’t know…we have something similar for $350”
Yanmar dealers out of your area won’t even talk to you. $350? Are you kidding me?
So bless the electronic heart of the internet I found Tony at the Flying Dutchman Pump Rebuilders.
For a $130 he cleaned it, rebuilt the pump, including machining the shaft and surfacing the face plate, installed new stainless steel springs and explained to me what was wrong and why these crappy pumps routinely fail and that I should use Super Lube grease when I change my impeller. Oh, and that includes shipping back to me.
And he painted it.
Tony and his crew are my heroes!
200 Davis Creek Road
Selma, OR 97538 USA
Toll free (U.S. and Canada) 1-888-595-1110