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Old 07-09-2019, 10:56 PM
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Speed3guy Speed3guy is offline
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Boat: 1987 Mastercraft Prostar 190, 351W
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Morse MV1 Shifter broken

1987 Prostar 190, the set screw came loose and I stripped out the splines on the shifter. Anyone know of a source to get parts for this setup? I know this a long shot but after searching I've found nothing for the controls or the shifter itself. Thank you.
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Old 07-10-2019, 01:58 PM
88 PS190 88 PS190 is online now
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Real fix is replacement - however I have numerous times used green bearing fit loctite to secure things like door handles on antique vehicles when the splines are munched.

Also you can replace the set screw with a dog point set screw - and you can drill a hole the diameter of the dog in the place where the set screw is supposed to engage this will further secure the throttle lever.
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Old 07-10-2019, 04:53 PM
waterlogged882 waterlogged882 is offline
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Quote:
Originally Posted by Speed3guy View Post
......... Thank you.
New ones do not exist (generally speaking). There is an MV-2 model that can be modified (nothing huge or ridiculous) to take the place of the MV1. I have info and diagrams, etc. for reference on both models and the mod.

I have a used complete MV-1 control that came off of an 83 model. I bought it as a spare but if you are in need, I can let it go for what I have in it. It's not junk but it's not new. Can be easily restored. I have previously completely gutted one, cleaned it, and put it back together (photos). Fairly straight forward with the diagram. None of these things are cheap (used or MV-2). I think I gave $125 for the one I got a few years ago.



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Old 07-14-2019, 12:42 PM
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Speed3guy Speed3guy is offline
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Boat: 1987 Mastercraft Prostar 190, 351W
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Thanks for the replies. I will absolutely try that green loctite and longer set screw before i do anything else. I have a trip scheduled from a year ago in two weeks so it is crunch time. In the long run though I am very interested in converting to a newer style that i can get parts for. I'm not too worried about keeping it original as much as being functional and pulling skiers every weekend.
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Old 07-16-2019, 03:36 PM
88 PS190 88 PS190 is online now
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Just make sure to get the Green #609 loctite. bonds .25mm all the way around.
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Old 07-21-2019, 10:34 AM
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Speed3guy Speed3guy is offline
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Boat: 1987 Mastercraft Prostar 190, 351W
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I ended up using an off brand green Permatex, no one around here had green Loctite. Stuff worked great. I also sunk a longer set screw into the handle. Between that and replacing the throttle cable the controls function decent. I had a chance to run the boat this weekend and the shifter is on there solid.
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Old 07-22-2019, 08:57 AM
88 PS190 88 PS190 is online now
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Good stuff - let me know how that Permatex holds up - similarly its really easy for me to find their products locally in autoparts stores - but I know what the Loctite 609 is and use it regularly for all sorts of tasks.

Really once you start to delve into loctite there are a ton of products that are so useful - the #609 green is awesome for fixing loose knobs/handles to their shafts. Obviously red and blue are stuff everyone knows about - but for boats a few other products I strongly recommend having around;

Purple loctite #222 - this is a lower strength version of the normal red/blue - for essentially any bolt on a boat that would be installed dry and or oiled - this stuff is a low strength locker but seals out any corrosion - meaning you can use it with out fear of being unable to remove the fastener and it will seal up the threads and no more rust.

545 hydraulic sealant
567 pipe thread sealant

all good stuff.
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