1978 C-141 drive pulley routing

[MainelyWheelhorse 2,391]

 

I’ve been working on the Frankenstein C-141 and getting my tractors ready for spring. Since I installed the engine in it, and it’s also my first and only hydro. I wanted to double check if the belt routing was right. I can put 3 fingers vertically on the upper belt guide between it and the belt before it has noticeable tension. I’m aware it’s disengaged in the photo but I thought the play was excessive. I’ve talked to @ebinmaine but we both agreed checking here about that would be a good idea.TIA

[pfrederi 20,128]

How much tension when you engage it is more important  but are sure about the belt size???

 

Edited 21 hours ago by pfrederi

[squonk 45,886]

Not the correct engine pulley either.

[Bar Nuthin 2,257]

The routing looks correct, but matching the belt size to that pulley is what you want to look at.

You should only be able to deflect it about 1/2" to 3/4" with moderate finger pressure midway between pulleys (with the tensioner engaged). And (obviously) it shouldn't slip when in use.

Edited 11 hours ago by Bar Nuthin

[pfrederi 20,128]

Is that a gear drive hood stand???  A hydro will not have that tab on the hoodstand that is used by the gear drives to stop the belt.  You will never be able engage you belt with that there.

 

THere would not be the long support section below it that is part of the hydro Belt guard i think.

Edited 11 hours ago by pfrederi

[peter lena 9,812]

@MainelyWheelhorse  glairing to me ? that   flat idler pulley  , next to consol  , is known for  bearing lubrication failure  , very easy to change that out , also  belt fraying  is directly  related to  , incremental , bearing  lubrication failure , causing belts to  , bounce . donn,t have a hydro , but if it were me , would be , thinking about  calming down those long unsupported areas . added that to all my mower decks , no  belt bounce  , also lubrication upgrade , problem eliminated . you also have a  pto lever  , gold mine , for functional improvement  , staring  right at me , mine was finished with a  heim joint  lever end swing point , starts at  battery  tray  , lever  sloppy start  , pete   

[JoeM 9,706]

1 hour ago, pfrederi said:

A hydro will not have that tab on the hoodstand that is used by the gear drives to stop the belt.

Those bolt on it can come off,

My last 520H tower had it on

[953 nut 64,838]

I pulled this photo from @cleat's restoration of a GT-1600 to show how it should look.

[MainelyWheelhorse 2,391]

@squonk It should be correct. It is an Amazon pulley that is the supposedly correct 5.25 diameter for the hydro transmission. I have a 8 speed engine pulley if needed. The 5.25 diameter was info I got from the forum. The belt seems to fit in the groove fine and hasn’t been popping off like the pulley is too shallow yet.
 

@pfrederi The hood stand is what was on it when I got it. I assume it’s original as it looks like it’s been on there a very long time. Since I brought it back from a dead parts tractor I wasn’t sure what was still there and gone. That’s why I figured I’d check here.
 

@Bar Nuthin Ok, I’ll engage it and see what changes. I might need a belt as it was on it when I got it and seemed in good condition. That’s why I figured I’d check things out before mowing season. It doesn’t seem to slip just bounces and makes noise.
 

@peter lena I greased the idler pulley that’s what spurred me to check the belt routing, the PTO isn’t hooked up to the engine I still need to drill the holes in the engine pulley for the bolts for it. The goal was to get it running and moving for @JCM’s event last September then go back and fix the small stuff later.

 

@953 nut thanks for the pic. I was closer than I thought. Luckily it’s only two guides that have to come off. 
 

Thanks for the help!
 

 

 

[Bill D 2,683]

5 hours ago, 953 nut said:

I pulled this photo from @cleat's restoration of a GT-1600 to show how it should look.

If you have a drive belt release you need a lower belt guide.  My GT1800 has one. 

[peter lena 9,812]

@953 nut  that  picture says it all , for belt  functional detailing , would like to see it  in motion , did a lot of conveyor  set ups at work , thats what  makes me look at  anything similar differently , think if that belt return lower  run also had a  spring  pulley  compression , belt follower , it would help out , of course the belt guard  would then have to be modified . the long runs , need to be , control detailed . movement function , will show you the way . love a repetitive, problem , pete

[ebinmaine 77,971]

23 minutes ago, Bill D said:

If you have a drive belt release you need a lower belt guide.  My GT1800 has one. 

 

49 minutes ago, MainelyWheelhorse said:

two guides that have to come off. 
 

 

As Bill states. Those stay on. 

 

@cleat 's is a different transmission.  

[MainelyWheelhorse 2,391]

31 minutes ago, ebinmaine said:

 

 

As Bill states. Those stay on. 

 

@cleat 's is a different transmission.  

Ok, I thought it looked a bit different. At least I know the belt routing is right.

[pfrederi 20,128]

Is yours a sunstrand or an eaton
Information like that can help get better responses you indicated it was a frankenstien which means we cannot be sure that the hydro is original or not and makes a difference in the engagement mechanism.

.