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Author Topic: More shaft repair from factory coupler stripping splines  (Read 17745 times)

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Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #30 on: October 19, 2013, 12:26:02 AM »
That, I do not know. I've always used a tap, or die, to do any threading. I never got involved in cutting threads with a lathe where that information would be necessary.
Tom

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Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #31 on: August 05, 2014, 01:16:13 PM »
Latest pump in was just rebuilt by Mokai on 9/13, it had the newest version hardened shaft.
Tom

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Offline bizler

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Re: More shaft repair from factory coupler stripping splines
« Reply #32 on: August 05, 2014, 04:10:28 PM »
Having at least a flexible coupling in this application seems like a no-brainer to me.  Alignment is never going to be perfect.  An even better coupler incorporates the clutch.  I wouldnt want to run my Mokai without one!

BTW, I am extremely pleased with my new one.  Thanks!

Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #33 on: February 10, 2015, 01:08:08 PM »
I love rebuilding these pumps and shafts. Here is pump 76 & 77 with their fresh oil rebuilds and converted shafts, along with wear rings and clutches. Two more Mokais on the road to becoming "Painless"!  \./8
Tom

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Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #34 on: February 10, 2015, 01:10:44 PM »
Having at least a flexible coupling in this application seems like a no-brainer to me.  Alignment is never going to be perfect.  An even better coupler incorporates the clutch.  I wouldnt want to run my Mokai without one!

BTW, I am extremely pleased with my new one.  Thanks!

Wow, I missed this one somehow! Glad you like it Bill, I wouldn't run mine without one either!!  :)
Tom

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Offline lagolag

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Re: More shaft repair from factory coupler stripping splines
« Reply #35 on: October 31, 2018, 03:23:11 PM »
My 2007 Mokai has a newly redone spline and that is bigger then the 5/8 (15,875mm) that's mentioned here, when I measure it I get 17mm (inner diameter) and 19mm (outer diameter) and there is 17 splines, are there different pump shaft dimensions? ???
Where can I find a additional coupler? I need one for expremental use.  \./8

Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #36 on: October 31, 2018, 04:34:25 PM »
All the splined shafts have the same spline profile. The only measurement 5/8th had to do with pump shafts was with the old hex version that could vary between 5/8 or 16mm socket.

What are you trying to do with an extra coupler?
Tom

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Offline lagolag

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Re: More shaft repair from factory coupler stripping splines
« Reply #37 on: October 31, 2018, 06:14:55 PM »
My plan is to install a electric motor and I don't want to use the std coupler.

Offline Painlesstom

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Re: More shaft repair from factory coupler stripping splines
« Reply #38 on: October 31, 2018, 07:34:51 PM »
As long as shaft alignment is accurate, the standard coupler would be fine with an electric motor. There is no low rpm pounding from the combustion cycle that the gas engine produces, that is one of the reasons my clutch prevents shaft wear since it engages at an rpm when things smooth out.
Tom

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