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Gazunni July 31st 03 02:19 AM

Power Trim
 
Does anyone have experience with troubleshooting a power trim for an I/O?

My 1974 Searay 188HP MerCruiser will not hold up. There are no leaks in the
cylinders or in the stainless flexlines and I have not had to refill the
pump reservoir. Does anyone know if there are replaceable gaskets/O-Rings
Inside the pump (i.e. rebuild kit) for power trims?




Rural Knight July 31st 03 02:38 AM

Power Trim
 

"Gazunni" wrote in message
...
Does anyone have experience with troubleshooting a power trim for an I/O?

My 1974 Searay 188HP MerCruiser will not hold up. There are no leaks in

the
cylinders or in the stainless flexlines and I have not had to refill the
pump reservoir. Does anyone know if there are replaceable gaskets/O-Rings
Inside the pump (i.e. rebuild kit) for power trims?


It's most likely an internal bypass in the cylinders or the pump itself
which I assume is electric. Could be pressure by-pass on the pump
impeller or the lift cylinders themselves. I've had both happen to me
in the past 30 or so years. It isn't hard to fix, but I would replace the
seals, impeller and cylinder gaskets - this kind of pressure problem
almost always requires changing everything anyway because it's always
the last thing causing the problem. ;)

Seals and stuff are available - I just redid an '83 Johnson power
trim/tilt for a friend - had no problems getting the parts. You will need
a schematic though - these system aren't complicated, but they do have
a fair share of parts.

Good luck.

Later,

Tom



noah July 31st 03 02:42 AM

Power Trim
 
On Wed, 30 Jul 2003 21:19:05 -0400, "Gazunni"
wrote:

Does anyone have experience with troubleshooting a power trim for an I/O?

My 1974 Searay 188HP MerCruiser will not hold up. There are no leaks in the
cylinders or in the stainless flexlines and I have not had to refill the
pump reservoir. Does anyone know if there are replaceable gaskets/O-Rings
Inside the pump (i.e. rebuild kit) for power trims?


I'm not familiar with your particular boat, but yes, there are rebuild
kits for the internal seals.

noah

Courtesy of Lee Yeaton,
See the boats of rec.boats
www.TheBayGuide.com/rec.boats


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