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Old 13 August 2008, 14:54   #1
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Optimax powertrim

My mate Top Banana has a 135 Mercury Optimax. When he trims the engine up it remains at a constant trim speed until he reaches the trailer position and then it speeds up, however we have noticed that my 115 Mercury Optimax trim speed remains the same all the way up through the trailer position.

Is this just a difference between the two engines or is there a problem?
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Old 13 August 2008, 14:57   #2
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Originally Posted by waverunner View Post
My mate Top Banana has a 135 Mercury Optimax. When he trims the engine up it remains at a constant trim speed until he reaches the trailer position and then it speeds up, however we have noticed that my 115 Mercury Optimax trim speed remains the same all the way up through the trailer position.

Is this just a difference between the two engines or is there a problem?
It should speed up. The slower is trim, the faster tilt.
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Old 13 August 2008, 15:07   #3
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Originally Posted by Mollers View Post
It should speed up. The slower is trim, the faster tilt.
Maybe there is a problem then!!
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Old 13 August 2008, 15:11   #4
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Originally Posted by waverunner View Post
My mate Top Banana has a 135 Mercury Optimax. When he trims the engine up it remains at a constant trim speed until he reaches the trailer position and then it speeds up, however we have noticed that my 115 Mercury Optimax trim speed remains the same all the way up through the trailer position.

Is this just a difference between the two engines or is there a problem?
seems there's something wrong with your trim then. It should be gradual up to trailer, and then speed up to fully tilted position.
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Old 13 August 2008, 15:18   #5
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seems there's something wrong with your trim then. It should be gradual up to trailer, and then speed up to fully tilted position.
Any ideas as to what could cause this?
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Old 13 August 2008, 15:31   #6
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Originally Posted by waverunner View Post
My mate Top Banana has a 135 Mercury Optimax. When he trims the engine up it remains at a constant trim speed until he reaches the trailer position and then it speeds up, however we have noticed that my 115 Mercury Optimax trim speed remains the same all the way up through the trailer position.

Is this just a difference between the two engines or is there a problem?
There is no problem. the 115 will go all the way up on the same speed.
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Old 13 August 2008, 15:32   #7
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Any ideas as to what could cause this?
You may not have a problem. Given that it is working all the way up and down, I would say it is OK. 135hp and above definitely have 2 speeds. Not sure about the 115hp but I do know that smaller engines only have one speed. You may be able to tell by looking at the Hydraulic rod which tilts it. On the 2 speed engine, the rod is in 2 parts (telescopic) of seperate diameters and the speed changes when 1 rod is fully extended and it starts to extend the second rod of different diameter. If you only have a single diameter, non telescopic rod, then i would say it is operating correctly.
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Old 13 August 2008, 15:35   #8
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There is no problem. the 115 will go all the way up on the same speed.
Nice one Ian, thought I had a problem there for one minute, still curious though as to why there should be a difference. It does make more sense to speed up when moving in the tilt mode.
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Old 13 August 2008, 15:38   #9
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On the 2 speed engine, the rod is in 2 parts (telescopic) of seperate diameters and the speed changes when 1 rod is fully extended and it starts to extend the second rod of different diameter. If you only have a single diameter, non telescopic rod, then i would say it is operating correctly.
That makes sense as there would be a larger volume of oil in the cylinder.
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Old 13 August 2008, 15:42   #10
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Nice one Ian, thought I had a problem there for one minute, still curious though as to why there should be a difference. It does make more sense to speed up when moving in the tilt mode.
The 135 and higher models are a better system, I supose it is all down to economics
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