Thread: breaking 05 pump veins
05-19-2008, 03:57 AM #1
breaking 05 pump veins
I was hoping some of the fast guys could help me out,i pulled my pump out recently to notice there was a part of my vein broken off which i do not believe i picked anything up as the prop is perfect and to cause such a break on the vein and have no damage to the prop would be a miracle,has anybody else had veins breaking at high speed on the 05 pump,if so is there any cure or upgrade pump
05-19-2008, 04:25 AM #2
Only 2 viable options...
Either something is going through your viens,
your prop is very close to your viens, and you are hydrolocking the viens and the blades. Something has to give, and it won't be the water or the SST blades.
05-19-2008, 09:10 AM #3
I had heard a rumour that another forum member with a high HP ski was routinely breaking veins - you might try a Skat pump - Skat uses SS for the veins
05-19-2008, 04:49 PM #4
I've broken a few veins from cavatation. This is from trying to accelerate at low speads with an 800 grate or have an air leak in your pump somewhere, prop just blows out and damages the pump by severe pitting and cracking.
05-19-2008, 06:17 PM #5
I have broken veins also in the pump but I also have broken veins in the pump nozzle itself. Almost all of them are gone. I was also wondering if anyone else was having similar problems....
05-19-2008, 08:57 PM #6
If you are making a lot of power you will break the
veins. Setting your prop back will make it happen sooner.
On my triple stroked big bore if I set the prop back I can
get about 2 or 3 hours on a new oem pump. Thats only
giving it full throttle above 40 mph. They can be welded up
and they will last longer according to another member here.
05-20-2008, 10:28 AM #7Setting your prop back will make it happen sooner.
Ding, ding ding!!!
Hydrolocking your prop and your stator with not enough clearance will shear off any aluminum stator. Did you ever see a new Kawi Ultra250 pump. They have dime sized holes cut in the leading edges of the viens to provide pressure relief.
We ran into this back in the day when all we had was aluminum pumps. Put the prop blades too close, and things break, blow and snap.
05-20-2008, 11:56 AM #8
Anyone have pics of the 250 pump? Never seen one
05-20-2008, 07:42 PM #9
08-15-2008, 11:13 PM #10
Bringing this thread back to the top...
Looking for a couple of things..
1/. pictures of the Kawi ultra 250 pump stator, + pictures of the damaged Yami stators..
2/. ideas for the best solution.? other than buy a Scat pump etc..
I have blew some pretty decent sized lumps out of my 05 pump stator.
The last time i changed props from a 14~24sb to a 14~22 there was damage on three of the viens..
Also if possible would really like to see a picture of a weld repaired stator..
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