oil pump
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Cruiser
Joined: Apr 2007
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oil pump
hey all. i just got my motor back in my bike. fired it up and the oil pump leaks between the pump and the case. i put new gasket in before i put it on but now leaks. is it possible to change gasket without pulling cam chest apart? can it be done on the bike by just pulling the pump? please help as im frustrated. ive been working on it for two days solid now. thought i was good to go.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,195
Likes: 3,085
From: NW AR
Wayne,
Da Book sez: The oil pump may be disassembled, piece by piece, without removing gearcase cover, with engine in chassis...
I pulled one on a shovelhead at the camp ground in Sturgis once. It's the same setup.
Da Book sez: The oil pump may be disassembled, piece by piece, without removing gearcase cover, with engine in chassis...
I pulled one on a shovelhead at the camp ground in Sturgis once. It's the same setup.
HDF Community Team
Joined: Dec 2005
Posts: 5,376
Likes: 2,574
From: NC USA
Nothing spooky about it, but it's tedious, especially if you have the short primary. If you accidently push the shaft in too far, the drive key in the nosecone can fall out.
Are you absoutely certain that is where it's leaking? How far have you ridden it? Reason for asking - first engine I ever built, I took the pump off in-frame 4 times for a leak like that and it was not the pump!
PS; yes there is a key on the drive shaft gear in the nosecone, one on the pressure gear and one on the scavange gear. They need to be "clocked" to about 1 or 2 o'clock position before removing the outer lock ring. The lock-ring on the outboard side is (usually) a flat spring wire type. Other than a good picture, doubtful the book will help you much at all for this procedure. I gotta wonder what you did without the book, considering you split the cases???
Are you absoutely certain that is where it's leaking? How far have you ridden it? Reason for asking - first engine I ever built, I took the pump off in-frame 4 times for a leak like that and it was not the pump!
PS; yes there is a key on the drive shaft gear in the nosecone, one on the pressure gear and one on the scavange gear. They need to be "clocked" to about 1 or 2 o'clock position before removing the outer lock ring. The lock-ring on the outboard side is (usually) a flat spring wire type. Other than a good picture, doubtful the book will help you much at all for this procedure. I gotta wonder what you did without the book, considering you split the cases???
Last edited by t150vej; Jun 8, 2009 at 05:57 AM.
Thread Starter
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Cruiser
Joined: Apr 2007
Posts: 122
Likes: 1
Nothing spooky about it, but it's tedious, especially if you have the short primary. If you accidently push the shaft in too far, the drive key in the nosecone can fall out.
Are you absoutely certain that is where it's leaking? How far have you ridden it? Reason for asking - first engine I ever built, I took the pump off in-frame 4 times for a leak like that and it was not the pump!
PS; yes there is a key on the drive shaft gear in the nosecone, one on the pressure gear and one on the scavange gear. They need to be "clocked" to about 1 or 2 o'clock position before removing the outer lock ring. The lock-ring on the outboard side is (usually) a flat spring wire type. Other than a good picture, doubtful the book will help you much at all for this procedure. I gotta wonder what you did without the book, considering you split the cases???
Are you absoutely certain that is where it's leaking? How far have you ridden it? Reason for asking - first engine I ever built, I took the pump off in-frame 4 times for a leak like that and it was not the pump!
PS; yes there is a key on the drive shaft gear in the nosecone, one on the pressure gear and one on the scavange gear. They need to be "clocked" to about 1 or 2 o'clock position before removing the outer lock ring. The lock-ring on the outboard side is (usually) a flat spring wire type. Other than a good picture, doubtful the book will help you much at all for this procedure. I gotta wonder what you did without the book, considering you split the cases???
Cruiser
Joined: Dec 2008
Posts: 234
Likes: 4
From: Courtenay, BC, Canada
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