C-Series Hybrid Idea

[Handy Don 15,988]

13 hours ago, Easton Rich said:

Next dilemma, I sold the Eaton out of this tractor to a friend with a C-160 that has a Sunstrand. How easy would this swap be? He wants the Onan off of it too. How hard would it be to swap that in?

Motion control linkages for Sunstrands and Eatons are very different--you’ll need a donor tractor to get all the bits. Size differences may also become an issue as might clearances (the Eaton has an external charge pump and different routing for lift plumbing. 

The engine swap will likely be easier, though you’ll need the unique Onan engine mounting plate to go with the engine and do a thorough crosscheck on the wiring--sensors, safety switches & relays, etc.  

[Easton Rich 1,011]

Ive got the donor tractor and everything will would need. How would fitment look? Any cutting or modification needed?

[Handy Don 15,988]

I’ve not done a detailed side-by-side comparison. Perhaps someone else here has. 

My initial instinct would be to keep the Eaton together with its original, linkage-embedded chassis/tunnel/console (and hoodstand?) and move other parts around.

[kpinnc 17,227]

1 minute ago, Easton Rich said:

How would fitment look?

 

I think the hydraulic lines and remote oil filter would be a challenge but is solvable. The input sheave for the Eaton seems to sit a little higher than the Sundstrand, but that may not be an issue. 

 

The main issue in my mind is being sure the left pedal neutral/ brake setup can be made to work on the older subframe. It might not be an issue at all, but it's something to look at. None of my Sundstrands have a brake so I have no reference. 

[Easton Rich 1,011]

Another option is 8spd. How would that go? Regardless he wants the Onan.

[Handy Don 15,988]

5 hours ago, Easton Rich said:

Another option is 8spd. How would that go? Regardless he wants the Onan.

8-speeds are a LOT less complicated and much smaller. Only have to figure out the brake linkage and then make sure there is clearance/alignment for the shift levers and dipstick.

[953 nut 64,213]

7 hours ago, Handy Don said:

Motion control linkages for Sunstrands and Eatons are very different--you’ll need a donor tractor to get all the bits. Size differences may also become an issue as might clearances (the Eaton has an external charge pump and different routing for lift plumbing. 

Not as bad a job as you might think. @19richie66 did a thread about widening the Eaton to replace the Sundstrand on a GT-14. If you disregard the axle change out to accomplish the widening it is a rather easy job. Very few changes to the tunnel need to be made for the this swap and Richie has documented it well.

 

[c-series don 11,449]

I saw your C-175 pictures and I thought it looked similar to mine! I restored this one 2-3 years ago. 

[Easton Rich 1,011]

One of these days I'll get to that one, but I need to for sure downsize!