XR Gear Materials
11-11-2012, 03:43 PM
#21
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Off the top of my head I don't remember what the alloy is that is used. Like Waconda stated, if you had a failure at 10 hrs and it was installed by a certified registered tech, you have a good case for a warranty claim.
The issue with any XR gears is that there is a stress riser at the back of each tooth where it is closest to the center hub. If exceeding stock horsepower, the clock is ticking away that it will fail.
I am in the process of making a better mouse trap. Un fortunately my progress is slow right now.
The pic shows what I am talking about.
Smitty
The issue with any XR gears is that there is a stress riser at the back of each tooth where it is closest to the center hub. If exceeding stock horsepower, the clock is ticking away that it will fail.
I am in the process of making a better mouse trap. Un fortunately my progress is slow right now.
The pic shows what I am talking about.
Smitty
11-11-2012, 10:02 PM
#22
Gaz-
Absolutely correct. As I stated, the stock gear has a weak point. I have 100 hrs on XR's with 850 ft lbs peak torque and have made them live this far by being nice to them and not airing it out. If you are breaking gears with stock power, you may want to alter your driving habits ???
Go back to my first post and look closely at the pic. I will eliminate the gear weak spot. Then of course that will expose the next weak link.
Absolutely correct. As I stated, the stock gear has a weak point. I have 100 hrs on XR's with 850 ft lbs peak torque and have made them live this far by being nice to them and not airing it out. If you are breaking gears with stock power, you may want to alter your driving habits ???
Go back to my first post and look closely at the pic. I will eliminate the gear weak spot. Then of course that will expose the next weak link.
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11-12-2012, 06:21 PM
#23
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Gaz-
Absolutely correct. As I stated, the stock gear has a weak point. I have 100 hrs on XR's with 850 ft lbs peak torque and have made them live this far by being nice to them and not airing it out. If you are breaking gears with stock power, you may want to alter your driving habits ???
Go back to my first post and look closely at the pic. I will eliminate the gear weak spot. Then of course that will expose the next weak link.
Absolutely correct. As I stated, the stock gear has a weak point. I have 100 hrs on XR's with 850 ft lbs peak torque and have made them live this far by being nice to them and not airing it out. If you are breaking gears with stock power, you may want to alter your driving habits ???
Go back to my first post and look closely at the pic. I will eliminate the gear weak spot. Then of course that will expose the next weak link.
Other than that I don't know what could be considered bad driving habits.....It's not like the boat has been anywhere near jumping out of the water and re entering under power.
11-12-2012, 09:43 PM
#24
If you want the rush of a holeshot, buy a true ski boat or jet ski. Doing a holeshot from rest is clearly the reason why you are breaking drives. It is OK to go full throttle once the boat is ON TOP OF the water.
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11-12-2012, 10:05 PM
#25
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I'm no expert but I would think that during a hole shot in any outdrive equiped boat, that over time some component will eventually fatique, Not the Crankshaft, but anything other parts are fair game, Couplers, u-joints, drive internals, prop blades, add in a heavy boat with a single drive, something will fail sooner than later. once again I'm not a mechanic! but!!!
