0G940463
mercury part 17280A2
So i drilled the 5th hole to 5/16 per instructions, just it enters past the pick up hole, there’s a lot of meat back there, especially the casting around the driveshaft area. This made me a bit nervous, the issue is the well nut holds to nothing when tightened, it just pops back out. No I didn’t overdrill the hole either. The front and rear of the inlet hole is support casting. Is this normal?
Are you sure your instructions said to drill this to 5/16"? I'd have to go pull one from stock, but I seem to recall a different size listing (and have never had a problem with the blind nut biting).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
yes 100% said 5/16.Originally Posted by EuropeanAM
Ive installed then without the well but. In my lower unit it literally serves not purpose on there as it dosent have the room to swell. I’ve dabbled a little blue loctite on the screws. We’ll see.
I have never in stalled a set so I cant help you , but can I ask why you needed them
.................................................. ...the scariest thing in life is the unknown ...................................
Just epoxy the blind nut in place or tap the hole
Another option would be to tap for a brass plug and then drill/tap the plug to match the screw.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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