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#1
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Leaking Cork Seal
Yup, I pulled the 1772 out first time for the season to mow the lawn. In its place I found a puddle of hytran. Looking under the tractor it appears to be from the cork seal. While I have replaced one of these seals on my late dad's 1872, it's been years since I did it. Plus my 1772 has a cat 0 3 pt hitch and the axle braces that were designed by Sam. The question is, would it be easier and faster to pull the pump, leaving the rear end in place and replace the seal or pull the whole rear end, split it and replace the seal. Wasn't there some issue about turning the new seal around to get a better seal?
Thanks
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1989 - Cub Cadet 1772 1987 - Cub Cadet 1572 w/Rear PTO & Cat. 0 38" Lawn Sweeper #196483 42" L42 (Bush Hog) Rotary Cutter # 190349 45" 2-Stage Snowblower # 196364 48" Haban Rotortiller Rear PTO Driven #190356 54" SnowBlade with hydraulic Angle #196376 60" Haban Mowing Deck #196374 |
#2
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Quote:
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[B]Roland Bedell[/B] CC Models: 100, 105, 1450, 782, (2) 784, & 2072 [SIZE="4"][B][COLOR="Red"]Buy:[/COLOR][COLOR="Blue"] Made in the USA[/COLOR][/B] [/SIZE]:American Flag 1: |
#3
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I believe I have read discussions here somewhere about rotating it 180 degrees so that the 6' o'clock hole is at the top instead of the bottom. Perhaps someone else recalls more about that. |
#4
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I thought it was something to do with having better sealing around the drain back holes and that the oil could drain back through the ball bearing instead.
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1989 - Cub Cadet 1772 1987 - Cub Cadet 1572 w/Rear PTO & Cat. 0 38" Lawn Sweeper #196483 42" L42 (Bush Hog) Rotary Cutter # 190349 45" 2-Stage Snowblower # 196364 48" Haban Rotortiller Rear PTO Driven #190356 54" SnowBlade with hydraulic Angle #196376 60" Haban Mowing Deck #196374 |
#5
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Aren't two of the holes in the cork for the swash bolt heads? The middle hole is the drain back and as long as the hole is in the casting, it won't seal "better" by just putting gasket over it. Or maybe the intent is to force oil through the bearings, but in either case, since the gaskets last for thirty plus years and the bearings even longer, not sure how anyone proved the theory.
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#6
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Two of the holes are for the swash plate retaining bolts, if so equipped, ( on some models, the swash plate is part of the casting) the third hole is for oil drain back ( also if so equipped) as some models force the oil through the bearing and are not drilled)
Thus, one gasket can fit all variations of castings. |
#7
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The older hydro's had 2 bolts and a drain back hole so the gasket has 3 small hole to accommodate these. Later hydro's don't have the bolts or the drain back hole. When I replace the cork gasket if the hydro doesn't have the bolts and drain back hole I put the gasket on up side down. The 3 holes just weaken the gasket an make it more likely to rip.
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL |
#8
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Does it hurt to rotate the gasket on a hydro with the drain back hole?
I'd think the fluid could still return the same as one without the hole. At least there would be more gasket meat at the bottom where the leaks are most likely to occur. |
#9
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I don't have the answer to this question, every one I've done didn't have the the hole or the bolts
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2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL |
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