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Vanguard V-Twin 20 HP 351447-1075A1 Revival


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#76 KennyP ONLINE  

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Posted July 15, 2017 - 12:05 PM

I could use an Onan clutch! Hard to find those for a decent price!



#77 SupplySergeant OFFLINE  

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Posted July 15, 2017 - 03:49 PM

leaving this here for now

 

http://www.ebay.com/...18/332293753641

 

Hmmm.... looks easy enough to make. If I can get the two bore diameters, I should be able to knock that out in an afternoon.... just let me know!



#78 Trav1s ONLINE  

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Posted July 15, 2017 - 04:13 PM

The Onan crank is 1 and 7/16" and the Vanguard crank is 1" but I have no idea how to convert it to the dimensions you need.  This is all unchartered territory for me as I lack machining skills.


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#79 SupplySergeant OFFLINE  

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Posted July 15, 2017 - 05:30 PM

As long as the keyway widths are the same as the eBay ad you linked, I can make it from that. I should be able to do it this week, if that works for you?



#80 Trav1s ONLINE  

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Posted July 16, 2017 - 07:24 AM

I will get some measurements with a micrometer tomorrow and share them on here.  I am in no hurry so if it takes us a bit to figure this out I am good with it.  I'd like to have the swap done by the end of August but that is up for negotiation.   :rolling:  :rolling:  :rolling:


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#81 SupplySergeant OFFLINE  

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Posted July 16, 2017 - 07:37 AM

Sounds good!



#82 Trav1s ONLINE  

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Posted July 17, 2017 - 10:32 AM

While I am at it, I am going to pull the valve covers and check things out.  


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#83 SupplySergeant OFFLINE  

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Posted July 25, 2017 - 07:26 AM

Did you ever get a chance to make those measurements?


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#84 Trav1s ONLINE  

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Posted July 26, 2017 - 06:25 AM

Not yet... life keeps getting in the way.  I hope to do it later today.  Thx for the reminder...


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#85 SupplySergeant OFFLINE  

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Posted July 26, 2017 - 09:08 AM

Not yet... life keeps getting in the way.  I hope to do it later today.  Thx for the reminder...

Tell me about it! So far this year, I had the barn roof blow off, rebuilt the front end of my wife's car, re-fenced half my property as an emergency action (horse kept visiting neighbors!), replaced the water heater, installed window AC units in the bedrooms because the central one went down, and am currently putting a new front axle in my truck. Thank God for my job, it provides an necessary distraction from all the work!


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#86 Trav1s ONLINE  

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Posted August 02, 2017 - 03:09 PM

I found the micrometer over the weekend and measured the crank and Onan clutch.  The crank is just shy of 1" (.9990x" at the front edge) and the Onan clutch is 1 and 7/16" but I have no idea how to use those numbers to make an adapter.  Also, I found another option that is $27 including shipping but is not as nice as the other one I posted earlier in the thread. 

http://www.ebay.com/...119.m1438.l2649

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#87 SupplySergeant OFFLINE  

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Posted August 02, 2017 - 03:13 PM

I found the micrometer over the weekend and measured the crank and Onan clutch.  The crank is just shy of 1" (.9990x" at the front edge) and the Onan clutch is 1 and 7/16" but I have no idea how to use those numbers to make an adapter.  

Fortunately, I do! The only other thing I need to know is the width of the keyways, and I can get it made. 


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#88 Trav1s ONLINE  

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Posted August 02, 2017 - 03:19 PM

Fortunately, I do! The only other thing I need to know is the width of the keyways, and I can get it made. 

 

That is easy!  I hope to get those later today.


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#89 SupplySergeant OFFLINE  

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Posted August 02, 2017 - 04:03 PM

That is easy!  I hope to get those later today.

Great! I'm slow at work this week, so I can probably have it done Friday.

 

It would also be good to know the length of the bore in the clutch, I'll make that the overall length of the adapter.


Edited by SupplySergeant, August 02, 2017 - 04:04 PM.

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#90 Trav1s ONLINE  

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Posted August 03, 2017 - 04:39 PM

Great! I'm slow at work this week, so I can probably have it done Friday.

 

It would also be good to know the length of the bore in the clutch, I'll make that the overall length of the adapter.

 

At the open end of the 3" crank the keyway is .2360" when measured at the bottom of the keyway.

 

The PTO clutch keyway is .3765 measured the same way.

 

Clutch bore and bracket depth is 2.5" but the adapters I have found all go for 3" due to aligning the clutch on the crank and keeping it lined up with the mule drive. 


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