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Old 05-18-2011 | 04:46 PM
  #51  
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Jason,
Why dont you fly up here & change my fluids. I dont like to get my hands dirty. Oh & bring your pump too. I dont have one yet.

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Old 05-18-2011 | 04:52 PM
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Originally Posted by 47EXCALIBUR
SMITTY,,,, if you are breaking XR's alot,,, you need to cut out the caged roller bearing that comes with the gear set and replace it with a larger roller bearing(torington) use the same snap ring to hold the bearing in,,,,this will take the rock out of the upper gear set
ditto this helps alot and will clean up the teeth loss
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Old 05-18-2011 | 08:48 PM
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Lucas oil just came out with a marine gear lube called Extreme Duty M8 75/90. Has anyone tried it yet?
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Old 05-19-2011 | 07:02 AM
  #54  
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Looks like a promissing option. I wonder how it's priced?

http://www.lucasoil.com/products/dis...e%20Gear%20Oil
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Old 05-19-2011 | 04:23 PM
  #55  
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[QUOTE=07DominatorSS;3371320]
Originally Posted by thirdchildhood
I respect Bob Teaque but he is sponsored by Amsoil and he sells it. That's why he uses it. (if indeed he does use it!)[/QUOTE

First of all, he uses it cause it works. Most people don't realize, on an oil weight scale, and 20w-50 Motor Oil is virtually the same weight as a 75w-90 Gear Oil. But since the AMSOIL's 10w-40 Motorcycle Oil has a GL-1 Gear Oil rating, Teague uses it because it lets the gears move with just that much less resistance.
http://www.bobistheoilguy.com/visc.html

Its also why Harley Davidson recommends the same fluid in all three reservoirs of their motorcycles. However, motor oil won't last as long in a gear case, due to shearing at the molecular level, but it will work for a duration of time.
oil shearing


This is the way I was told/my thinking..

Just think the bravo lower gear set has only 2 teeth touching at a time ,with extream HP levels the load TQ push's out the oil between the gears teeth and then makes metal to metal contack,Then Brinelling starts and then the gears start to come apart.Thats the reason for larger gears and #6s.

When I run out of my Amsoil gear lube stock .Ill prob try Bravo Shops Neo oil

Rob
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Old 05-19-2011 | 04:28 PM
  #56  
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Originally Posted by Strip Poker 388

When I run out of my Amsoil gear lube stock .Ill prob try Bravo Shops Neo oil

Rob
Smart man!
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Old 05-19-2011 | 10:39 PM
  #57  
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Just broke a couple of lower teeth off. This is after 3 seasons of running 75/90 Royal Purple. Change oil at the end of every season but only put 20 hours/year. The other drive oil looked ok when we changed in the fall.

What have others found with Royal Purple?
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Old 05-20-2011 | 10:41 AM
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[QUOTE=07DominatorSS;3371320]
Originally Posted by thirdchildhood
I respect Bob Teaque but he is sponsored by Amsoil and he sells it. That's why he uses it. (if indeed he does use it!)[/QUOTE

First of all, he uses it cause it works. Most people don't realize, on an oil weight scale, and 20w-50 Motor Oil is virtually the same weight as a 75w-90 Gear Oil. But since the AMSOIL's 10w-40 Motorcycle Oil has a GL-1 Gear Oil rating, Teague uses it because it lets the gears move with just that much less resistance.
http://www.bobistheoilguy.com/visc.html

Its also why Harley Davidson recommends the same fluid in all three reservoirs of their motorcycles. However, motor oil won't last as long in a gear case, due to shearing at the molecular level, but it will work for a duration of time.
Any motor oil is GL-1 rated. Look at any japanese motorcycle, common sump for engine, tranny, and clutch.

Amsoil didn't reinvent the wheel here by claiming GL-1 with their engine oil.

The Japanese motorcycles have been using common sumps since they were made, way before Amsoil was even around.

Motor oil will last in a gear box, but you can't use your typical high shear aotomotive polymer to blend it. You need a polymer that is typical of a gear lube, unless the motor oil is blended from base stocks with no polymer.

Ken
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Old 05-20-2011 | 10:44 AM
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Originally Posted by Irishtornado
Your getting hosed for non synthetic oil at that price. Shouldn't be more than 12.00 and thats high.

There is nothing synthetic about Mercury drive lube.
If you think oil is high now, wait.

Ken
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Old 05-20-2011 | 05:37 PM
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Originally Posted by Rebel_Heart
Just broke a couple of lower teeth off. This is after 3 seasons of running 75/90 Royal Purple. Change oil at the end of every season but only put 20 hours/year. The other drive oil looked ok when we changed in the fall.

What have others found with Royal Purple?
Found it doesn't meet spec out of the bottle.

http://www.amsoil.com/lit/g2457.pdf
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