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1988 John Deere 318 Repower with 20HP Vanguard V-Twin 351447-1075A1 Revival


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#196 Trav1s ONLINE  

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Posted March 05, 2018 - 09:46 AM

I will try to get good measurements of the mount area of fan assembly that I just installed.  Probably will make a cardboard template and scan, and attach it or simply mail it to you.  I hope to do that this afternoon as my week is crazy busy... 



#197 SupplySergeant ONLINE  

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Posted March 05, 2018 - 11:57 AM

This connects the top of the fan assembly to the PTO clutch, right? If it goes where I think it does, aluminum should be plenty strong.

 

P.S. I just went to Small engine Warehouse, they list it as 1.98 lbs weight, so I drew it up in Onshape (a 3D modeling package), and the calculated weight for this in 1018 steel is 5.785 lbs, 6061 aluminum 1.99 lbs, so I'd say they make it from aluminum. Cost of the metal is about the same, since AL is more per pound, but much less of it. I can go either way you prefer.


Edited by SupplySergeant, March 05, 2018 - 12:19 PM.


#198 Trav1s ONLINE  

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Posted March 05, 2018 - 12:20 PM

This connects the top of the fan assembly to the PTO clutch, right? If it goes where I think it does, aluminum should be plenty strong.

 

This coupler connects the flywheel side/fan to the driveshaft.  

 

The engine in the 318 is set up like the engine in the 120/140 with the driveshaft driven off of the flywheel side of the engine and the PTO clutch on the other (back) side of the the engine. 


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#199 SupplySergeant ONLINE  

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Posted March 05, 2018 - 12:52 PM

This coupler connects the flywheel side/fan to the driveshaft.  

 

The engine in the 318 is set up like the engine in the 120/140 with the driveshaft driven off of the flywheel side of the engine and the PTO clutch on the other (back) side of the the engine. 

Ok, makes sense. With the design of the adapter, I can make it as much as 1.4" shorter, or as much longer as you need. Probably best to mock it up, and measure the distance between the fan and the end of the driveshaft. If we can get that close to the original distance, then you won't need to fool with a custom length driveshaft. Olcowhand might have some insight into how important that length really is.


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#200 Trav1s ONLINE  

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Posted March 05, 2018 - 05:19 PM

I have some measurements and pics of the pieces in question that I will post later. 


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#201 Trav1s ONLINE  

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Posted March 06, 2018 - 11:12 AM

Here is what I got yesterday. I used a pencil and paper to transfer the shape of mounting surface on the fan for Serg. I took the measurements in inches but can easily do the measurements in millimeters if that will help. I will also try to get a better version of the dimensions put together but you can see the measurements in the pics.

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Edited by Trav1s, March 06, 2018 - 11:16 AM.

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#202 SupplySergeant ONLINE  

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Posted March 06, 2018 - 12:46 PM

I attached my drawing of the SEW adaptor. It looks like we need to change the flywheel (fan, in your case) side to fit. You gave me almost every dimension I need. I just need the diameter of the fan bolt holes, so I can figure the center-to-center distance for the bolt circle. Then I'll re-draw the adaptor. We can finalize the whole thing once we know just how far it is between the top of the fan and the driveshaft.

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#203 Trav1s ONLINE  

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Posted March 06, 2018 - 01:18 PM

Glad to see that understand this more than I give myself credit for.  I hope to get that info for you tomorrow unless I have a break in my pretty loaded day. 


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#204 SupplySergeant ONLINE  

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Posted March 06, 2018 - 06:49 PM

Glad to see that understand this more than I give myself credit for.  I hope to get that info for you tomorrow unless I have a break in my pretty loaded day. 

What, a Lutheran pastor busy during Lent?

 

Your dimensions are fine, this stuff is easy if you think spatially. If you can't, its all nonsense!


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#205 Trav1s ONLINE  

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Posted March 06, 2018 - 09:54 PM

What, a Lutheran pastor busy during Lent?

 

Your dimensions are fine, this stuff is easy if you think spatially. If you can't, its all nonsense!

 

I might be busy... two sermons and worship services, council meeting, monthly colleague gathering, Wednesday morning Bible Study, conference call continuing education, and a few other things I am forgetting.  Three more weeks until Easter!

As for thinking spatially, I have a hard time translating what I want to make into what I want to make.  Definitely spatially challenged!


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#206 Trav1s ONLINE  

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Posted March 09, 2018 - 12:06 PM

Still working on the actual bolt sizes. Here are a few more pics.

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#207 SupplySergeant ONLINE  

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Posted March 09, 2018 - 03:34 PM

I'm off for the next few days, but I'll be able to draw an adapter as soon as I get back to work. All we need now is the distance between the area you just measured and the driveshaft flange, and I can get the whole thing finalized, so we can get a good price for the metal.



#208 Trav1s ONLINE  

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Posted March 09, 2018 - 05:37 PM

No hurry. Enjoy the time off
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#209 Trav1s ONLINE  

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Posted March 10, 2018 - 12:21 PM

Carried the Vanguard 20 to the jeep and I am off to set it in the 318 later today.  My gracious storage host is excited to see the project move forward.  :D


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#210 Trav1s ONLINE  

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Posted March 10, 2018 - 09:25 PM

Made it out to the tractor gave the Vanguard a test fit. The mounts serg made are great - bolted right in place. Measured the distance between the driveshaft and the fan with the shaft all the way back on the input splines and the space was 2”. Now the question I am working with is which set of block mount holes need to be used?

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Edited by Trav1s, March 10, 2018 - 09:41 PM.

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