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Old 12-04-2017, 08:13 AM   #1
Thundercat guy
 
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Country: Scotland
Location: Isle of Lewis
Occupation: Skipper
Boat make: Thundercat
Engines: Yamaha 70ces

Join Date: Apr 2014
Location: Isle of Lewis
Posts: 433
Gearbox Rebuild

Has anyone had their gearbox rebuilt? Looking to reduce a bit of drag from it, get it shimmed well, is this worthwhile? Who in the uk does it?

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Old 01-05-2017, 09:43 PM   #2
oxo
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Country: england
Location: isle of wight
Occupation: stonemason when the water's too rough!
Interests: boats engines beer
Boat name: outlaw
Boat make: marshan 18/crusader 17
Engines: merc xr2/ merc115
Cruising area: solent/round island if i got enough fuel!

Join Date: Oct 2008
Location: isle of wight
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Can you raise the engine a bit? Might save you a few bob!
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Old 02-05-2017, 08:29 AM   #3
Thundercat guy
 
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Country: Scotland
Location: Isle of Lewis
Occupation: Skipper
Boat make: Thundercat
Engines: Yamaha 70ces

Join Date: Apr 2014
Location: Isle of Lewis
Posts: 433
I can but I need to run the engine low to get grip in the surf, I've heard there maybe decent gains from shimming the gearbox, apparently you can spin the propshaft with your finger and thumb
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