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Old 27 July 2016, 07:10   #1
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Country: Ireland
Town: Castlebar
Boat name: Clewless
Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
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Top engine mount seized bolt.

I noticed the engine mounts on my outbaord were gone weak and decided to change them. I have them nearly removed however I have a bolt that is seized (red loctitle used I am informed). I was advised on the etec forum to use heat to loosen the bolt. My plan now it to break, cut the metal bracket that holds the rubber bushin in place. Cut away the bushin and heat the bolt with a blow lamp. Let bot cool and apply wd 40 and tru my case with a Vice grips as I have broken my spanner in trying to loosen the boat (now with semi rounded head).

attached is a photo of same screw driver point to seized bolt.

TSM
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Old 27 July 2016, 09:48   #2
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Country: UK - Scotland
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Boat name: charlie girl
Make: reiver 3.8/regal3760
Length: 10m +
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It's unlikely that the loctite is your problem as it's designed to let go when needed to it's actually a very good anti sieze compound as it prevents corrosion in the threads.
More likely corrosion has locked the bolt in the Sleeve
Your plan sounds like the way to go but I'd try to remove the bolt while it's hot to take advantage of the expansion of the metal due to the heat
Good luck with it they can be a right pita!
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Old 27 July 2016, 12:36   #3
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Country: UK - England
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Try plus Gas mick will penetrate better than WD.
Diesel pretty good too
Cheers
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Old 27 July 2016, 13:37   #4
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Country: Ireland
Town: Castlebar
Boat name: Clewless
Make: Valiant DR 490
Length: 4m +
Engine: 60 hp ETEC
MMSI: Awaitng one
Join Date: Oct 2007
Posts: 1,225
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I Daisey chain drilled the cast metal portion of the bushing then I cut away the rubber then I heated with a blow lamp the bolt loosened with ease. About forty minutes work.
Tsm
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