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Speedmaster #3 that lowers it self

Old 05-02-2004, 01:10 PM
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Default Speedmaster #3 that lowers it self

I have a problem with one of my drives lowering it self when my boat sits on the lift with the drives in trailer position. I was told that it might be an O-ring in the pump but not it is. I have tjeked for leaks. Any suggestions ?

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Old 05-02-2004, 02:34 PM
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It could be a tilt cylinder with a bad packing.
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Old 05-02-2004, 07:59 PM
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they are probably the same as my #4 trim cyclinders and they have o rings in them that go bad and let the drive move
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Old 05-03-2004, 06:28 AM
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Originally posted by Bigyellowcat
they are probably the same as my #4 trim cyclinders and they have o rings in them that go bad and let the drive move
That was the answer I was looking for ! Do you know where these O - rings are in the pump ?

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Old 05-03-2004, 07:55 AM
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Try the BAM link they have a schematic of the cylinder.
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Old 05-03-2004, 08:45 PM
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The O rings he's talking about are in the trim cylinders.
It's relatively common for these to leak when they age. You should be able to get a cylinder rebuild kit. I rebuilt my cylinders with kits.
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Old 05-04-2004, 02:09 AM
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Not a good idea to leave the drive in trailer position. There is no benefit (unless your slip is so shallow it bumps the bottom) and it:

1) stretches the bellows
2) allows crud to accumulate on the trim ram piston rods

Yes the leak is probably internal in one or both of the cylinders.
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