Seized oil sump bolt finally out.

[Creeksider]

I figured I'd post this for all to see. The sump oil bolt has been seized for a few seasons now and it was time for it to go. I always change oil and filter, but for the last couple seasons I was unable to get the sump bolt out. I even broke an extractor off in the rounded out Allen head. I picked up a bolt extractor kit from Canadian Tire over the summer on sale. Amazingly, I wrenched the sucker out. The 17MM socket is the perfect size. It snapped suddenly to the point where I thought I cracked the aluminum base of the engine.

Why would Yamaha put an Allen head there when it's likely to be seized the following season? Why not put a normal bolt there?

 

[No show]

I'm not a fan of those allen head bolts either in locations like that. I bought a couple of racheting wrenchs the other day at Canadian Tire and they worked as advertised.

 

[Chad Schultz]

I can say I have never taken that bolt out my sled.

 

[Voda2000]

I can say I have never taken that bolt out my sled.

Yamaha recommends removing it when doing an oil change. There's actually quite a bit of oil in there.

 

[Chad Schultz]

And the owners manual also say you only need to change the filter every 12,000 miles. At least 80% is in the tank I think that is good enough. And I have a float plate so that bolt is not easy to get to. But to each their own.

 

[1bad10tacoma]

Changed my oil over the summer and that bolt came loose but didn't really want to

 

[Mooseman]

It always cracks loose reluctantly on our 3 machines. I always think it broke.