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Old 20 May 2012, 03:49   #1
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can you weld gearbox ?

anyone welded gearbox on honda ? only hairline crack
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Old 20 May 2012, 04:07   #2
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it is possible to weld it will be aluminium so should weld with tig, strip it all down degrease thouroughly and take along to local blacksmith or specialist wedler, better if you have a mate or access to a tig set it will be a cheap fix
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Old 20 May 2012, 05:36   #3
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It depends exactly where the crack is on the casing.
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Old 20 May 2012, 05:47   #4
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on the built
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Old 20 May 2012, 05:48   #5
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thanks was talking to mate and they said tig, as very clean engine
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Old 20 May 2012, 06:38   #6
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Quote:
Originally Posted by falcon0310 View Post
on the built
On where?

If there's oil on the other side it's complicated, also complicated/difficult if there's a thread on the other side.
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Old 20 May 2012, 14:06   #7
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Got pictures? As stated above not all places can be welded up. ALL oil contaminants must be removed before a proper weld can be laid down. If nearing a bearing area the distortion may cause issues. If near a sealing area, it may take some careful dressing to clean it up.

With that said, I have welded on a couple of gear cases now, except I was repairing the skegs.
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Old 20 May 2012, 18:23   #8
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Be aware that the aluminium alloy used for the gearcase is likely to have a low, or no copper content to prevent corrosion, especially in salt water. The welding rod used should be of similar composition.
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