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Old 03-21-2009, 05:41 AM
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Default Yamaha trim tilt seal replacement instructions

I want to go ahead a change the trim tilt seals on my 200 OX66 due to a small leak.

Does anybody have any tips or pointers before I get started? What part number is the seal kit?

Is it easier to remove the pin at the top of the tilt shaft or is easier to remove the bottom thrust rod that holds the trim unit in order to access the seals?
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Old 03-21-2009, 05:57 AM
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If I were you, I'd consult Andy at Shipyard Island Marina on the vendor board. I'm sure he'd be glad to help with instructions as well as parts. He's helped me several times and his prices are hard to beat. Good luck.

Bill
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Old 03-21-2009, 06:14 AM
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I have my boat out of the water for repairs and one of them WAS a leaking trim pump seal.

You can buy all the seals and dust cap for around $10.00. http://www.boats.net/
Great parts breakdown with pictures.....

I took the seals to a local hydraulic cylinder repair shop and for 50 bucks they rebuilt it for me.

The spanner tools to take the end cap off cost about the same....
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Old 03-24-2009, 06:24 PM
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I am assuming for the 2 trim cylinders that I simply remove the seal cap and swap rod and wiper seals?

Do I have to watch out for flying hydraulic fluid or small parts flying?
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Old 03-09-2010, 01:35 PM
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OK I never got a good response on this thread and here we are a year later and I need to swap out the seals.

So the two trim seals. I guess I just need to unscrew the two caps with a spanner wrench and switch out the seals.

For the tilt seal, whats the easiest way?
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Old 03-09-2010, 02:00 PM
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chances are theyre just loose
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Old 03-09-2010, 02:05 PM
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I changed mine on 99 250 ox66's. Getting the cap off is the hardest. I did not do the main shaft so if you are doing it you will have to ask someone else. You can buy the caps with the seals already in there which makes it easier.
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Old 03-09-2010, 02:47 PM
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Ive done it a few times, the 2 with just the caps come off easy. Take a punch and stick it in the hole then tap the punch around counter clockwise (just like taking off a screw) and it will come right off, then you dont need that special tool. Like said above you can buy the caps with the seals already in it for about $30-40/ea or the seals for about $3/ea. The big cylinder takes a little time. The way ive did it is take the cylinder off the motor and take it apart. There is just a little clip that hooks on a small smooth looking bolt that holds the top you have to take the bolts off the sides to get the bottom off. I'm sure you could probably just take the top of the cylinder loose and do it without having to take the whole cylinder out, thats just the way Ive did it. Make sure to put antiseize on the bolts when you put it back on. Its not that hard, cylinder is the hardest part. 2 caps take about 5 minutes to get off and 5 minutes to get back on.
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Old 03-09-2010, 04:30 PM
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Here is a good thread:

http://www.austinbassfishing.com/cgi...num=1247283404
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All things OX66

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Bluewater 2150 (sold)
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Old 03-09-2010, 06:10 PM
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I just did my 250 ox66 both trim and tilt.

May be obvious to some but remember to turn the manual tilt screw before you try to loosen the trim or tilt caps.

I had to take the entire tilt/trim unit out to get the tilt piston out.
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