New 2020 Yamaha one piece pump - Pics and info

[Green Hulk]

Here are some more details about the new 2020 Yamaha Waverunner pump


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The replaceable stainless steel wear ring is coated in a durable plastic compound. The material extends over the trailing edge of the wear ring, or the edge that butts up against the shoulder in the pump housing where the stator (vane) section begins. This is to reduce galvanic corrosion. Grease is applied to the outside of the wear ring before installing. The leading edge that is visible when the wear ring is installed is bare metal. It will be protected by silicone sealant when the pump is installed correctly. See attached pics.


It is normal for the wear ring to move slightly, if it does at all, due to the o-rings holding it in place. Once the complete pump is installed in the craft correctly everything will be clamped down.


SVHO models (160mm)
Wear Ring: 6GN-R1337-00-00
O-rings: 93211-70800-00 (x2)


HO models (155mm)
Wear Ring: 6HH-R1337-00-00
O-rings: 93211-65800-00 (x2)



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Wear Ring Replacement
The new tool to remove the new 1-piece wear ring won't be available until the end of November/early December. In most cases the wear ring can be removed without the tool.

To remove, attach a set of vise-grips opposite the locating tab. While pulling with the vise-grips use screwdrivers to pry the liner past the two o-rings that hold the liner in the housing. See attached pics.

This new upgraded pump system is available as a complete kit to upgrade your SHO, or SVHO ski in the GreenHulk Store at a discounted price

This pump setup will work on all previous SHO and SVHO skis.
PLEASE NOTE: Those that want to upgrade their FX SHO or FZ SHO you must also purchase an SVHO driveshaft in order to use this pump. The SVHO driveshafts are sold separately in the GreenHulk Store.

2020 Yamaha SVHO Pump upgrade PRE Order Now! Expected availability late October, 2019 Use this kit to upgrade your SHO/SVHO pump to the new 2020 SVHO pump. This new style pump...

2020 SVHO Pump Kit

$529.80 $449.00 15% discount

	Replacement FX SVHO Driveshaft Used to replaced your damaged factory driveshaft, or to upgrade your FX SHO so that it can use the new style 2020 SVHO one piece pump.	6ET-45511-00-00	$409.89 $349.00 15% discount
	Replacement FZ SVHO Driveshaft Used to replaced your damaged factory driveshaft, or to upgrade your FZ SHO so that it can use the new style 2020 SVHO one piece pump.	6EV-45511-00-00	$411.99 $351.00 15% discount

[WaterDR]

I have a question....just to be clear...

the OUTSIDE of the SS wear ring is costed? Not the inside correct? The pump housing is aluminum right?

[Green Hulk]

I have a question....just to be clear...

the OUTSIDE of the SS wear ring is costed? Not the inside correct? The pump housing is aluminum right?

correct! The outside is plastic coated to prevent the stainless steel wear ring from seizing in the aluminum pump housing

[WaterDR]

I think that coating is to prevent galvanic corrosion. That coating needs to be maintained and not damaged. However, even with a perfect coating it will still take place when submerged especially in brine water. Anyone storing their machine in the water is likely to have major corrosion issues with the pump.

Is the pump coated?

[FAMT]

so put it in the freezer for one night.... should be easy to remove like at the seadoos...

[Hydrotoys]

I would think if you are upgrading from a 155 stator section to the new 160mm stator section, you'd also need a matching reduction nozzle to do it right?

[SplishSplash]

So, if it can rotate slightly, not keyed in any way, what happens if say you do injest a rock, one that wedges between the impeller and ring. That woud spin the ring in the housing.
That may shred the coating, jam the ring and make it hell to get out?
I hope not but I think I'll wait and see how this works out in the real world before jumping into it.
Or is the clamping force of pump to shoe enough to prevent any chance of it spinning?
Just asking.

[Reaper9789]

Has anyone done this and tested differences back to back?

[josh_h25]

Has anyone changed out the impeller sleeve yet?

[gsxr1300]

Has anyone used this as an upgrade for the previous model years?