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Lenco trim tab actuator rebuild


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I've discovered why my port side trim tab actuator wasn't working. The motor is seized due to water ingress. See the puddle on the floor in the bottom right corner of the pic below? All that came out of the actuator when I opened it up.

mS2EbVS.jpg

Luckily, despite looking crappy, the gears are all fine and turn the ram without excess friction or sticking, which means I can clean them up, relube them and re-use them.

u9H1mB0.jpg

So I'll order a replacement motor and see how it goes from there.

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Looks like a good soaking in wd40 is in order there. 
I read somewhere that a motor from an electric drill will match up to that tab motor. Maybe you could look into that. Will probably save you a few quid if true!! 
No need to thank me😇

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7 minutes ago, Saintly Fish said:

Looks like a good soaking in wd40 is in order there. 
I read somewhere that a motor from an electric drill will match up to that tab motor. Maybe you could look into that. Will probably save you a few quid if true!! 
No need to thank me😇

I remember you saying about this before, some American dude had a list of motors he had matched up. Your resourcefulness never ceases to amaze me. 

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1 minute ago, JonC said:

I remember you saying about this before, some American dude had a list of motors he had matched up. Your resourcefulness never ceases to amaze me. 

Yeah it’s amazing what nuggets of info stick in the mind. If I remember correctly they were about $55.

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1 minute ago, Saintly Fish said:

Yeah it’s amazing what nuggets of info stick in the mind. If I remember correctly they were about $55.

You are amazing. That Andy fella would be fucked without you

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5 minutes ago, Saintly Fish said:

Well that’s gratitude for you. 

He would still be sitting on the pier fishing for scad if it wasn’t for you and your helpful advice 

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8 hours ago, suzook12 said:

Can you get in at the motor? If so, it is repairable

The motor can be removed from the housing and I'll see if I can free it off but it's been sitting in salt water for who knows how long so it may well be beyond repair.

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Andy, have you considered retro fitting the gyroscopic self levelling control to your system?

I know when we chatted about it you were considering it if you replaced the whole system. It would take away a lot of extra thinking when at the helm in choppy conditions. 

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1 minute ago, Saintly Fish said:

Andy, have you considered retro fitting the gyroscopic self levelling control to your system?

Do Lenco sell such a thing? Got a link?

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4 minutes ago, Saintly Fish said:

Ha, I just found the same. 👍

I would potentially consider this but will see how I get on with trim tabs that actually work and decide at the end of the season I think.

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4 minutes ago, Andy135 said:

Ha, I just found the same. 👍

I would potentially consider this but will see how I get on with trim tabs that actually work and decide at the end of the season I think.

Yeah that’s fair enough. You will now just have to get used to right being left and up being down! 

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41 minutes ago, Andy135 said:

The motor can be removed from the housing and I'll see if I can free it off but it's been sitting in salt water for who knows how long so it may well be beyond repair.

Yes, it will be repairable as long as the soft iron core hasn't evaporated.... I was quoted £100 for a rewind on a smallish motor albeit 3 phase. Yours may just need a wash off and fresh bearings which are pennies in comparison, someone such as simply bearings online should be able to supply what you need if you have the numbers or sizes.... And some fresh O rings and seal em up with vaseline or something.

 

Seems you may have just found a new annual task, strip and replace O rings and reseal......

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That looks like a plastic gear and I would suggest that careful use of two correctly sized screw drivers at 180 degrees to each other would soon have it off. Get the shaft as clean as poss. before levering. Don't be to  rough.good luck. Geoff.☺️

Edited by Geoff
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I posted at the same time as Zook. I suspect that there is not a pin, but if there is it should be easy to see it. there could be a flat on the shaft, but it doesn't look like it in the pics. Geoff.

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37 minutes ago, Geoff said:

That looks like a plastic gear and I would suggest that careful use of two correctly sized screw drivers at 180 degrees to each other would soon have it off. Get the shaft as clean as poss. before levering. Don't be to  rough.good luck. Geoff.☺️

Just tried your two screwdrivers trick and it worked.Thanks Geoff 👍

BjPXM1b.jpg

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After soaking it in penetrating fluid whilst we went for a dog walk, the shaft now turns. Not smoothly, and as you say Steve it feels like it needs a new bearing. How do I take the motor apart? Looks like it's just held together by pressed tabs in the body casing.

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On 4/11/2021 at 1:02 PM, Andy135 said:

After soaking it in penetrating fluid whilst we went for a dog walk, the shaft now turns. Not smoothly, and as you say Steve it feels like it needs a new bearing. How do I take the motor apart? Looks like it's just held together by pressed tabs in the body casing.

Sorry, missed this, my notifications aren't working

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