leaking tranny fluid
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Road Warrior
Joined: Nov 2007
Posts: 1,641
Likes: 4
From: south of Boston
sorry about that, Dan.... the photo is an aftermarket kit - with the exception of the main gear seal- offered by BDL from JPCycles (601-382)... it is make and model specific for my 91, so I gather it is proper
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Road Warrior
Joined: Nov 2007
Posts: 1,641
Likes: 4
From: south of Boston
so i figured i'd have a difficult time removing this seal, thinking that it was leaking from the inside where the rubber connects to the main shaft.... nope
i poked it with a mechanics pick and this thing flopped sideways on the shaft and i just pulled it off... upon closer inspection it seems to wear around the outside perimeter....which makes sense given that because the main shaft is constantly spinning, the seal is bound to fatigue against the main gear and ultimately lose it's strength against it
i poked it with a mechanics pick and this thing flopped sideways on the shaft and i just pulled it off... upon closer inspection it seems to wear around the outside perimeter....which makes sense given that because the main shaft is constantly spinning, the seal is bound to fatigue against the main gear and ultimately lose it's strength against it
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Joined: Mar 2006
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From:
check the splines on the main gear to see if there is any wear on the splines. if there is, it would be a good idea to replace the main gear. the pulley must have exact fitment to the main gear. if it doesn't, the pulley will never get tight on the main gear and will wobble slightly and it will leak oil.
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Road Warrior
Joined: Nov 2007
Posts: 1,641
Likes: 4
From: south of Boston
check the splines on the main gear to see if there is any wear on the splines. if there is, it would be a good idea to replace the main gear. the pulley must have exact fitment to the main gear. if it doesn't, the pulley will never get tight on the main gear and will wobble slightly and it will leak oil.
how is that possible given the tight tolerances between the main gear and main shaft?... and why would the tranny pulley wobble if it's tightened to spec and locked in?.... seems like it would jerk against the gear rather than wobble
Last edited by jsbridgew; Jul 22, 2016 at 07:41 PM.
Elite HDF Member
Joined: Mar 2006
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From:
the early drive pulleys were narrower where they slide on the main gear. the pulley splines will wear out if the big nut gets loose witch will make the main gear splines wear. give the main gear splines the fingernail test. if you can feel a step on the splines with your fingernail it's shot.
the pulley will wobble because there's about 60 HP pulling on it. i'm not talking about the main gear and the main shaft seal, i'm talking about the bigger seal on the other side of the pulley. maybe what i should have added was check the main gear as long as you have it apart. there's a reason they changed the pulley in 94, the early ones were failing.
the pulley will wobble because there's about 60 HP pulling on it. i'm not talking about the main gear and the main shaft seal, i'm talking about the bigger seal on the other side of the pulley. maybe what i should have added was check the main gear as long as you have it apart. there's a reason they changed the pulley in 94, the early ones were failing.
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Road Warrior
Joined: Nov 2007
Posts: 1,641
Likes: 4
From: south of Boston
the early drive pulleys were narrower where they slide on the main gear. the pulley splines will wear out if the big nut gets loose witch will make the main gear splines wear. give the main gear splines the fingernail test. if you can feel a step on the splines with your fingernail it's shot.
the pulley will wobble because there's about 60 HP pulling on it. i'm not talking about the main gear and the main shaft seal, i'm talking about the bigger seal on the other side of the pulley. maybe what i should have added was check the main gear as long as you have it apart. there's a reason they changed the pulley in 94, the early ones were failing.
the pulley will wobble because there's about 60 HP pulling on it. i'm not talking about the main gear and the main shaft seal, i'm talking about the bigger seal on the other side of the pulley. maybe what i should have added was check the main gear as long as you have it apart. there's a reason they changed the pulley in 94, the early ones were failing.
i will check the splines on the main gear as you suggested, but since that isn't the source of my problem i am certain they are fine... thanks
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Joined: May 2008
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From: South Carolina
If you replace the pulley, do not use parts for a `91.
Use parts for a `95 or later, they will be the upgraded components.
The dealer may still sell it as a kit with all the parts needed.
Use parts for a `95 or later, they will be the upgraded components.
The dealer may still sell it as a kit with all the parts needed.
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Road Warrior
Joined: Nov 2007
Posts: 1,641
Likes: 4
From: south of Boston
thanks Dan.... i picked up the BDL kit, so i'll be good to go once everything arrives
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