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  1. #1
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    Mushroomed trim pistons ??

    Can the stainless steel trim rods? pistons? that are slightly mushroomed be ground down so that my "motor sticks " that hold the motor up while trailering will fit over them more easily ?
    Dave Swimm - Ranger Z21, Yamaha Vmax 250 HPDI
    ‘17 Shearwater X22 Hybrid, Vmax 250 SHO
    I can't leave anything stock, I can't leave well enough alone.
    I need to customize everything. I think I can improve others
    designs, sometimes.

  2. Member HaulinBass's Avatar
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    #2

    Re: Mushroomed trim pistons ?? (DAVESWIMM)

    Prolonged grinding may overheat the rods and ruin your seals. If they're not causing any sticking issues why mess with what's working? "Motor sticks"?????
    Larry Eby, 2004 ChampioN 188 Elite/2003 200 Hp Vmax OX66
    "Romans 10:9"

  3. Member
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    #3

    Re: Mushroomed trim pistons ?? (HaulinBass)

    Come on man , you dont know what motor sticks are ?

  4. Member HaulinBass's Avatar
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    #4

    Re: Mushroomed trim pistons ?? (ZXD)

    Just googled it. Now I know. What would keep them from popping off if you hut an unexpected bump in the road?
    As far as the piston ram mushrooming, other than what you would do, replacement is your only other option.
    Limit the grinding time to allow for cooling.
    Larry Eby, 2004 ChampioN 188 Elite/2003 200 Hp Vmax OX66
    "Romans 10:9"

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    #5

    Re: Mushroomed trim pistons ?? (HaulinBass)

    I didnt know what they were either .

  6. Member Ranchdip's Avatar
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    #6
    I had mine machined down smooth as a part of my motor mount repair.
    2016 Phoenix 921 ProXP w/ 300R Mercury
    Garmin (3x) 126sv / LS34 Livescope

    Jer. 33:3

  7. Member
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    Tyler, TX
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    #7

    Re: (Ranchdip)

    I grinded mine down with a bench grinder when I replaced my seals. Worked fine. I don't remember it building up much heat, but it didn't really matter as I was replacing the seals anyway.
    Skeeter ZX250
    Yamaha 250 HPDI

  8. Member
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    #8

    Re: Mushroomed trim pistons ?? (DAVESWIMM)

    I pulled the caps and pistons on mine and turned them down on a lathe until I could slide the cap off and then replaced the seals. It hasn't leaked in two years.
    1999 Champion 203
    2000 Yamaha OX66 225

  9. Member HaulinBass's Avatar
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    #9

    Re: Mushroomed trim pistons ?? (sarmst100)

    How the H did you get the caps off?
    Larry Eby, 2004 ChampioN 188 Elite/2003 200 Hp Vmax OX66
    "Romans 10:9"

  10. Member Dando's Avatar
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    #10

    Re: Mushroomed trim pistons ?? (HaulinBass)

    Grab a big hand file and go to work. Or use a power grinder if 30min of manual labor is a foreign idea.

    It's a novel thought to be sure, but, I don't see any way possible for a person to hurt the seals using a grinder. That rod will not get that hot 5" away.
    I think the new secret color is "A-Rig"..........

  11. Member
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    #11

    Re: Mushroomed trim pistons ?? (DAVESWIMM)

    Guys , It was much simplier than i thought after all your comments, I just took a dremel tool w a grinding stone, put the motor all the way up, and ground them down, till the caps fit. No extraordinary heat build up occurred. done deal , next project.
    Dave Swimm - Ranger Z21, Yamaha Vmax 250 HPDI
    ‘17 Shearwater X22 Hybrid, Vmax 250 SHO
    I can't leave anything stock, I can't leave well enough alone.
    I need to customize everything. I think I can improve others
    designs, sometimes.

  12. Member Ranchdip's Avatar
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    Liberty, Tx
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    #12

    Re: Mushroomed trim pistons ?? (DAVESWIMM)

    2016 Phoenix 921 ProXP w/ 300R Mercury
    Garmin (3x) 126sv / LS34 Livescope

    Jer. 33:3

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