So I finally tracked down the coolant leak on my sled. It is coming from the bottom of the water pump. Either bad gasket or bad mechanical seal. I figure I will replace both.
I really would like to know what the best way to do the job is... Remove the entire engine or just remove the engine mounting bracket that is in front of the water pump? Can someone who has done this job give me some tips?
You can have that motor out in under 30 minutes. If you do manage to figure out a way to get to the pump with it in, its going to take you far longer than that.
1) 2000 Arctic cat ZR 700, which now thinks it is a 2001 ZR 600 EFI APV w/136" ripsaw. (for sale!)
2) 1995 Yamaha VMAX 600, which now thinks it is a Polaris! (Polaris x10 suspension, Polaris P85 clutch) (for sale!)
3) 2004 Yamaha Warrior
4) 2006 Yamaha Nytro
Well i removed the motor today. Easier than i thought... Took the water pump cover off, someone had done some work on it before i opened it because you could see where they scraped the block with a gasket scraper or flathead screw driver. The o-ring gasket was fine but they added silicone around it which is what i think failed a long with the mechinal seal.
So the ceramic that is on the impeller, the spring with rubber, and then the piece that is pressed into the crank case? Here is what it looks like after removing the cover. The question i have is what is the piece that looks crimped to the shaft?
The 3rd pic is still the mech seal, take the sharp small wood chisel and remove the metal cup, that is what looks like its crimped to shaft. But you are going to want to remove that shaft as well and buff it atleast! And as I said before this is the best time to repalce both crank seals too!