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TRS - tilt/trim VERY slow (is this normal)?

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Old 02-17-2010, 10:36 AM
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Default TRS - tilt/trim VERY slow (is this normal)?

I've never had a TRS drive before, so I'm not well informed about them.

It's a 1980 Excalibur w/ (I assume) original TRS drive.
The drive moves VERY slow (up and down). Is this normal?
Does the pump need servicing of some kind when it get slow like this or is there a common/known problem I should know to check?

Thank you.
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Old 02-17-2010, 11:05 AM
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Originally Posted by KSims1868
I've never had a TRS drive before, so I'm not well informed about them.

It's a 1980 Excalibur w/ (I assume) original TRS drive.
The drive moves VERY slow (up and down). Is this normal?
Does the pump need servicing of some kind when it get slow like this or is there a common/known problem I should know to check?

Thank you.

I have the same problem, execpt one of mine moves lower than the other, I just havent looked into the cause yet.... maybe i will too feed from your question...

Thanks.
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Old 02-17-2010, 11:18 AM
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Picture of my TRS...in case this helps.
Attached Thumbnails TRS - tilt/trim VERY slow (is this normal)?-1980-excalibur-rear.jpg  
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Old 02-17-2010, 06:40 PM
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Default TRS rams

TRS rams move slower because of the design of the hydraulic cylinders: the travel distance is longer.
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Old 02-17-2010, 06:51 PM
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My drives actually move pretty quick up and down. Does your pump sound strong? I know when I hit my trim switch I can hear it kick on strong and it sounds like it has some power.
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Old 02-17-2010, 06:56 PM
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It's probably the trim cylinders sticking. Also, if you upgrade the trim pump to the newer style Oildyne pump the trim will run faster.
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Old 02-17-2010, 07:13 PM
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Originally Posted by KSims1868
The drive moves VERY slow (up and down). Is this normal?
Does the pump need servicing of some kind when it get slow like this or is there a common/known problem I should know to check?

Thank you.
I had the same problem with my boat when I bought it. My TRS drives were somewhat slow. I tore the the trim motors apart and cleaned up any oxidation inside and around the copper coils. I replaced the worn out brushes. I got the brushes at the local alternator/starter rebuild shop. I also ran new + and - wires to my pumps. This helped considerably.
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Old 02-17-2010, 10:32 PM
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Default TRS trim

I will check my system out: I am comparing TRS to the newer drives and compared to them it is slow but precise.
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Old 02-18-2010, 08:38 AM
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I'm comparing it to my 1989 22' Scarab with an Alpha. That Alpha was pretty fast, but this TRS creeps...seriously!!
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Old 02-18-2010, 01:07 PM
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Originally Posted by theadamv1
I have the same problem, execpt one of mine moves lower than the other, I just havent looked into the cause yet.... maybe i will too feed from your question...

Thanks.
I had a similar problem but I had one of my TRS drives that wouldn't go up as high as the other side. Pulled and cleaned pumps but still had the same problem. Bled the line and problem solved.
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