Outboard Motor Gear Box oil change.?

Hi, I am old and not very strong. The two machine screws that have to be removed are too tight for me to budge. I have sprayed them with penetrating oil, and have bought the biggest screwdriver that I can get locally (250x12mm) but still no luck. Would it be easier to budge them if I run the engine to get them hot? Perhaps there are some tricks of the trade that you could share with me? Thanks for reading and please help if you have any answers.Outboard Motor Gear Box oil change.?
Make sure the leg of the outboard is well supported in a horizontal position, now assuming you are right handed, grasp the screwdriver in your left hand and fit it to the screw concerned.





While keeping a good tight hold on the screwdriver and applying an anti-clockwise twist at the same time, give the top of the screwdriver a tap with a reasonable sized hammer.





What you are doing is simulating an 'impact wrench' and will normally get those leg screws undone - they are not over tight but the oil seal can make them stick.Outboard Motor Gear Box oil change.?
I am only 13 but it might help.


First dont heat them coz metal expands when it get hot, and that willjust be eve harder.


secondly you want to get somegood leverage, like put a mole-grip on the handle of your screwdriver (put it on at 90 degress, like %26gt;%26gt;%26gt; 卢)





or like get a screwdriver with a hole in the hadle so you stick a rod through it.





antything to get more leverage.





thats how i take the spark plugg out of my moped and screw it back in tight.
If there's a vent hole into the gear box, I'd get the oil real hot and try to suck it out of the vent hole with a quality ';transfer pump';. Then refill with a quality synthetic gear box oil and the motor gears will last forever.
Put a small cresent wrench on the blade of the screwdriver and use it to get more leverage. Running the engine to get it hot won't help because it won't get that hot and if it's not in water you will ruin your engine.
try this trick ,it has worked for me in the past more than one occasion.


try to tighten the screw(s) first than try to loosen them


running the motor might help after it has cooled back down but try to work the screws while it's cooling

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