Can't get gearcase oil screws out

[Dougan]

Both of them were pretty locked up. I was able to get the bottom one freed by putting a channellocks on the screwdriver. The top one is causing me more trouble. I tried PB blaster and one of those hand impact drivers. I'm not sure what the next step is. Should I hit it with a blowtorch? I'm worried about what issues that might cause.

Whose idea was it to use a flathead for these screws anyway?

What would you guys do next?

98 25hp tiller johnson 2cyl 2stroke

 

[Joe Reeves]

Re: Can't get gearcase oil screws out

Flathead screws were a must in that situation... anything else would eventually round off.

A hand held impact screwdriver is what is needed to remove and install those screws, available just about anywhere, Sears, parts stores, etc.

 

[Bosunsmate]

Re: Can't get gearcase oil screws out

Yep hand held impact is what i use, works everytime.
Cost me $15

 

[Dougan]

Re: Can't get gearcase oil screws out

That's actually what I was referring to with the "hand impact driver", sorry for the terminology mixup.

I ended up getting it by applying extra manliness. I took a small screwdriver and put it at the edge of the screw and tapped it with a hammer until it broke free.


Thanks!

 

[theoldwizard1]

Re: Can't get gearcase oil screws out

So why do they still use slotted screws even today for gear oil drain/fill plugs ?

Why not socket head (Allen) or Torx ?

 

[175se]

Re: Can't get gearcase oil screws out

there are allens available for the larger motors but I would check with a dealer to see it they are for yours.

 

[Dougan]

Re: Can't get gearcase oil screws out

I'll be replacing mine since i stripped it a little bit pounding on it. But I'll just be getting the stock type, I'd rather not turn my motor into something only I understand.

When I was looking for those parts, I did stumble upon hex ones when googling the product number for the stock screws. They are at competitor website so I'll leave it there.

 

[racerone]

Re: Can't get gearcase oil screws out

The repair kits for the lower units now come with new screws for this.-------Allen head wrench required.----------These screws are almost a universal fit too !!