Super Jet I give up... Solas pump help PLEASE
- Thread starter SXR-FOREVER
- Start date
- Location
- bradford ont
sure glad I ride a kawi with a one piece driveshaft
- Location
- Pueblo, CO
Really? ^^^^ First off - take that kawi vs. yamaha dead-horse-beating rhetoric back to PWChackedToday. I'm trying to find a solution here for myself and others who have run into this issue with AFTERMARKET COMPONENTS. It has NOTHING to do with Yamaha 2-piece drive system. If you had an aftermarket pump that had the pump shaft/bearings set further forward than stock AND you had an aftermarket kawi hull with the bulkhead position setup a little further back - then your one-piece driveshaft would be bottoming out in the impeller and you'd be in the same situation that we are. 
Now back to some useful discussion:
Not happy with the very tight tolerance I had (in case the engine gets shoved backwards), I have now replaced the 1.27 mm shim with one that is 2mm. This looks like the max amount that is feasible for moving the shaft back in the pump. The seal lips are getting close to the edge now. And I will definitely have to grind down the flat surface on the tail cone as it interferes at this depth - however a 14mm wide bearing on the back side might fix that... but I don't have one (if even available). And of course the impeller will have to be shimmed forward a good bit as well - but I have not installed it yet.
EDIT: Googling, I found a Suzuki motorcycle OEM bearing that is 14mm wide - looking into that as opposed to grinding my tail cone.
Now back to some useful discussion:
Not happy with the very tight tolerance I had (in case the engine gets shoved backwards), I have now replaced the 1.27 mm shim with one that is 2mm. This looks like the max amount that is feasible for moving the shaft back in the pump. The seal lips are getting close to the edge now. And I will definitely have to grind down the flat surface on the tail cone as it interferes at this depth - however a 14mm wide bearing on the back side might fix that... but I don't have one (if even available). And of course the impeller will have to be shimmed forward a good bit as well - but I have not installed it yet.
EDIT: Googling, I found a Suzuki motorcycle OEM bearing that is 14mm wide - looking into that as opposed to grinding my tail cone.
Last edited:
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
I had this same issue when I first installed my setback mag into my Matrix hull. There was a good 1/4" gap between the midshaft housing and bulkhead when the shaft bottomed out. I was told that Skat makes their shafts slightly longer to ensure full spline engagement. I just took the measurement and adjusted the midshaft appropriately within the housing. Since I hadn't installed the motor yet, it wasn't a big deal and I completed the rest of the install based on that starting point.
I later installed the Cold fusion spacer, readjusted the midshaft to retain full spline engagement and shifted the motor back slightly to maintain proper clearances.
I did find wear on my bulkhead from the midshaft so I do reccomend using the spacer on the Matrix hull. If it helps make up some of the difference too then that's just bonus.
I just sent an old Waveventure driveshaft to Jetmaniac to be cut down and made into a backup shaft for my Mag setback pump so if you do decide to adjust the shaft, he would be my first choice.
I later installed the Cold fusion spacer, readjusted the midshaft to retain full spline engagement and shifted the motor back slightly to maintain proper clearances.
I did find wear on my bulkhead from the midshaft so I do reccomend using the spacer on the Matrix hull. If it helps make up some of the difference too then that's just bonus.
I just sent an old Waveventure driveshaft to Jetmaniac to be cut down and made into a backup shaft for my Mag setback pump so if you do decide to adjust the shaft, he would be my first choice.
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- Location
- bradford ont
good luck ,hope you get it figured out and back on the water
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Christian_83
Xscream
- Location
- Denmark
OCD, how thick is the CF midhousing spacer?
- Location
- Braapp factory
3mm i think
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
You are correct, they are 3mm.
http://www.x-h2o.com/threads/80568-...r-aftermarket-hulls&highlight=midhsaft+spacer
Christian_83
Xscream
- Location
- Denmark
Okai nice, does the 3mm spacer allow the lips from the midhouse to meet the bulkhead?
- Location
- Pueblo, CO
The 3mm spacer was originally intended for aftermarket hulls that have a flat bulkhead with no recess for the bearing carrier portion to move. Not sure if that answers your question?
Here is my pump and cone after the 2mm spacer was assembled inside and the cone was ground down:
Sent from my Superfreaky Droid 2 Global using Tapatalk... braaaaap!
Here is my pump and cone after the 2mm spacer was assembled inside and the cone was ground down:
Sent from my Superfreaky Droid 2 Global using Tapatalk... braaaaap!
Christian_83
Xscream
- Location
- Denmark
RMBC yeah in some way hehe.
What spacer did you put and where did you put it ?
What spacer did you put and where did you put it ?
- Location
- Pueblo, CO
Here was my solution ... finally.
I used a .625" (16mm) spacer made from a OEM housing mount that came off a waveraider. Thanks to my buddy Greg for getting it machined for me.
Next, big thanks to TOBY for supplying an FX-1 midshaft which made it all fit together perfectly.
I now have full spline engagement with about .25" of play. And i can use any pump like normal.
Sent from my DROID2 GLOBAL using Tapatalk 2
I used a .625" (16mm) spacer made from a OEM housing mount that came off a waveraider. Thanks to my buddy Greg for getting it machined for me.
Next, big thanks to TOBY for supplying an FX-1 midshaft which made it all fit together perfectly.
I now have full spline engagement with about .25" of play. And i can use any pump like normal.
Sent from my DROID2 GLOBAL using Tapatalk 2
- Location
- Pueblo, CO
That has been (and continues to be) my biggest problem as well. Ive had this thing since october! And i dont currently have a running ski!!!
Sent from my DROID2 GLOBAL using Tapatalk 2
I know the feeling, I'll be lucky to have mine done for the madness in September...That has been (and continues to be) my biggest problem as well. Ive had this thing since october! And i dont currently have a running ski!!!
Sent from my DROID2 GLOBAL using Tapatalk 2
Me too.
snowxr
V watch your daughters V
- Location
- Waterford, MI
I made my own 12 vane (at home) and it fits. How did Solas screw up so bad??
- Location
- Pueblo, CO
Me three. And yet i have the same issue... my mag shaft is lengthened and caused the same problem as the solas.
They set the bearings about .25" too far forward, effectively moving the whole shaft forward. Not a problem in a stock SJ hull, but some of us with aftermarket hulls have had troubles.
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