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Problem changing gear lube on Mercury 3.3hp 2-stroke
I'm trying to re-commission my Mercury 3.3hp 2-stroke outboard that has been laid up for the last 5 seasons.
All was going well until I came to change the gear lube. I drained out the old oil (which had the look of fresh oil with no signs of water ingression) but cannot for the life of me squeeze fresh oil up to the overflow hole. I manage to get a small amount of oil in but it refuses to go any further. Net result: little oil in the sump, a lot of oil over the floor.
Does anyone with experience of these engines have any thoughts on what the problem could be?
Many thanks,
Bryan
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