Bravo XR acting strange
06-06-2007, 11:24 AM
#11
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The seal that failed was the one in the retainer, but if failed because the drive had way to much oil in it. We of course filled the drive in the normal way from the bottom till it showed at the top, filled the resevoir. Now this is where the problem starts. after a few short runs the resevoir will start to go down, when we pulled the top plug on the drive it is overfilled. We are sure this is what is causing the heat and seal failue.
06-06-2007, 11:35 AM
#12
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06-06-2007, 12:43 PM
#13
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Location: Boydton Va.
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We are NOT over filling the drive. The resevoir is over filling the drive. We start out with the right amount of oil, then after a short run the resivoir goes down, and the drive ends up with too much oil.
06-06-2007, 12:50 PM
#15
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The drive is not completely filled with oil.
It's to be filled to the level plug on the side
of the upper.
The oil in the reservior is there to maintain this level
if fluid loss occurs.
There is a check valve in the reservior cap.
It's to be filled to the level plug on the side
of the upper.
The oil in the reservior is there to maintain this level
if fluid loss occurs.
There is a check valve in the reservior cap.
06-06-2007, 12:51 PM
#16
Charter Member # 55
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I would say you are either getting too hot or the seal was just weak.
06-06-2007, 12:56 PM
#17
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I do remeber reading threads about the upper seal having problems and being redesigned.
06-06-2007, 01:43 PM
#18
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For what its worth, here's how we fill the drives:
With upper plug removed, fill until it runs out of
upper plug.
Put in upper plug.
Continue to fill from bottom until about an inch
of oil is in the bottle.
Put in lower plug.
Top off bottle.
That's the procedure from the Merc manual anyway.
Pesky Varmint
With upper plug removed, fill until it runs out of
upper plug.
Put in upper plug.
Continue to fill from bottom until about an inch
of oil is in the bottle.
Put in lower plug.
Top off bottle.
That's the procedure from the Merc manual anyway.
Pesky Varmint
06-06-2007, 04:55 PM
#20
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For what its worth, here's how we fill the drives:
With upper plug removed, fill until it runs out of
upper plug.
Put in upper plug.
Continue to fill from bottom until about an inch
of oil is in the bottle.
Put in lower plug.
Top off bottle.
That's the procedure from the Merc manual anyway.
Pesky Varmint
With upper plug removed, fill until it runs out of
upper plug.
Put in upper plug.
Continue to fill from bottom until about an inch
of oil is in the bottle.
Put in lower plug.
Top off bottle.
That's the procedure from the Merc manual anyway.
Pesky Varmint
The initial loss of fluid after the first run is usually
due to the drive "burping" up some air that may have been
pumped in during the filling process, or an air pocket ,somewhere below the reservior fitting in the drive, releasing.
I usually overfill the reservior slightly, so after it burps,
it's down to the normal line.
I had a seal failure once, and it was due to a nick
on the input shaft yoke.
