100 hour Rebuild of the H20 Pump with a $100 tip.

[mosquito13]

I went cheap and quick last time and used a West Marine Searia kit.  So hit a 100 hours on the lower unit pump. Picked up a genuine Yamaha kit for less then WM crap on Amazon. After dropping unit as expected the repop impellor was holding form and starting to show cracking in it. OME kit on went on ez after I had to get a vice grip to twist out the "rusty" pins that came with the Searia kit. Just thought would share a tip I learned a million years ago on putting impellors in pump housing that eliminates lots of frustration. Reason 102 to have zip ties on hand at all times. This is a ez one man job. No special tools and there are tons of how to vid's on youtube.  Second pic is of the old impellor , I can not understand the non stainless pins furnished in the Searia kit from WM...


 

[Juan]

Okay, I'll bite.. I agree it's just stupid to use anything but a stainless alignment pin in a water pump but What's the purpose of putting zip ties around the impeller? That's possibly going to scar the impeller fins and has to get in the way of putting the housing back on .. (which could be worn and should be replaced when changing a water pump)

[985crabs]

He’s going to lubricate the fins with soap (or something benign), start the new housing down over the fins and when he’s satisfied they’re all in and correctly oriented, he’ll cut the zip ties and pull them out. Then he’ll get the housing the rest of the way down and bolted. Brilliant.

‘Skeeter knows some stuff...

[sjseapro]

Thanks for the tip it looks a lot easier than turning the shaft while mounting the housing

[Juan]

May 13, 2020 5:01:17 GMT -6 985crabs said:

He’s going to lubricate the fins with soap (or something benign), start the new housing down over the fins and when he’s satisfied they’re all in and correctly oriented, he’ll cut the zip ties and pull them out. Then he’ll get the housing the rest of the way down and bolted. Brilliant.

‘Skeeter knows some stuff...

Got cha. May work great but I'll pass on the wire ties. I'd worry about them scaring the impeller fins when I pulled them out and so far, getting the impeller inside a housing hasn't been an issue for me. Just gotta lube em and make sure they're bent in the right direction.

[mosquito13]

You nailed it, also another use for astroglide . Not been a issue with the zip ties , but my neighbor that showed me that used hemp twine, but I think he would have used zip ties if there had been zip ties back then, as tying the knot was a two person job.

[gtightline]

The times I have changed empellars, plate and hub I usually orient the splines in the right direction and turn by hand and it usually slides right in, never had any issues..I say if it works for you, go with it.