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Old 04 January 2016, 17:15   #1
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Country: Ireland
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tohatsu crank bearings

have a 1996 tohatsu 30 hp 2 stroke,
has a bearing rumble,
so took it apart to find the top and bottom main bearings need replacing,
no problem there but the middle one also is noisey.
not as bad as the others but there is a rumble there,
problem is the crankshaft is pressed together so cant replace the bearing,
is there any way around this without having to replace the shaft.
or is there any way to even quiten the middle bearing,
thanks
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Old 04 January 2016, 18:21   #2
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have the crank pressed apart and new bearing fitted and crank re assembled its done on 2 stroke motorbike engines all the time
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Old 04 January 2016, 20:23   #3
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thanks .
have u any idea of a place that does it.
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Old 04 January 2016, 20:56   #4
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not in Ireland mate no there is a place called sep .service exchange parts think it might be in derby that has a good name in the classic motorcycle circles they rebuild sealed 2 stroke motorcycle crankshafts cant see an outboard crank being much harder to do . I'm sure a google search will bring up others maybe closer to home
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Old 04 January 2016, 23:55   #5
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Very common on Jetskis as well.

Jetshed - Home ask for Alan Pickard
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Old 07 January 2016, 21:26   #6
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well finally found somone that will press the crankshaft,
only problem if trying to find new bearings,
top one is no problem but middle and bottom seem a odd size,
tohatsu manual says bearing 6305 but when searching thats only 62mm wide,
the bearings on the crank are 65mm wide,
now i cant find anyone with that size bearing.
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