WD45 Belt Pulley plug

Meangreen · Dec 26, 2012

I am in the process of tear down for painting my WD45 and I have both the cup insert and a plate for the frame to cover where the belt pulley would be. The cup will not stay in place because some one had wrapped it with electrical tape and put a make shift strap over it to hold it in. Which option would be correct for the tractor and if I use the cup, how do I hold it in? Thanks.

old · Dec 26, 2012

With out going and looking at the WD45 I have I can not say for sure but I think there is a 3 bolt set up that holds it in place but as I said I would have to look to be 100% sure and it is dark cold and it is late so I'll not walk out in the pasture to look LOL

JMS/.MN · Dec 26, 2012

Dad bought a new WD45 in October, 1956. Had the steel insert to plug the pulley hole. WC might have had the other style, but that pulley was never removed- used for grinding feed, blowing silage, and for the mounted corn picker. I just remember that the WD45 was simpler, and had the steel cup.

stu (ON) · Dec 26, 2012

The cup is held in by friction fit with the correct cork seal. It was still available from AGCO a couple of years ago, although the price seemed steep. The dimensions are critical, so I saw no way of making one myself.

It goes between the tractor frame and clutch housing. Manual says to remove frame rail or loosen it only and cut cork diagonally and place the cut section at the top, using shellac to hold it in place.

I believe that I did the latter and it prevented further leaking to this point.

Meangreen · Dec 27, 2012

Thank Stu, that makes sence. When they put the plug in on mine they put it through the frame, not behind it, we should be able to tap it into the hole and then put the frame rail back on.

stu (ON) · Dec 27, 2012

I hope that I did not add to the confusion on this. The seal sits in the recess in the clutch housing, as I recall. The cup is tapped in from the outside of the frame rail.

If the frame rail is off, the seal can be pushed straight in. If you do not remove the rail, cutting the seal allows you to overlap the ends in order to squeeze the seal into the seat in the housing.

I think it is a good idea to really clean the seat with solvent to get it free of oil before applying the shellac. Let everything set up & then oil the seal a little to aid in seating the cup. It's been a couple years, so I am going by memory on this.

Bill(Wis) · Dec 27, 2012

We had a "36 WC and a "49 WD both purcased new from the local AC dealer. My uncle had a "37 WC and many neighbors had WCs and WDs. Every WC I ever saw, including the styled ones, without a pulley on it, had the steel plate attached with 3 bolts. Every WD I ever saw had the steel insert plug but the frame rail still had the three bolts screwed into the frame rail. I believe WCs all had steel plates and WDs and WD45s had insert plugs but it is possible that AC started using insert plugs on very late WCs.

Kip-Utah · Dec 27, 2012

Bolt on flat plate is correct for WC & the press in cup type on WD/WD45.Either type will work on any of the other models.If using the later type use some solvent to degrease the edge of the cork seal inside the frame rail coat it with non-hardening Permatex sealer and press the cup in and tap it a little bit with a rubber mallet or small block of wood and hammer.It just needs to be snug. Kip

WD45 Belt Pulley plug

Meangreen

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old

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JMS/.MN

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stu (ON)

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Meangreen

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stu (ON)

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Bill(Wis)

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Kip-Utah

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