7.5 HP Mercury fuel fittings

boatflipper

Chief Petty Officer
Joined
Jun 16, 2009
Messages
500
I have a 70's model merc that I am in the process of 'restoring'. I got it running this weekend and noticed some fuel lines were leaking, especially where the brass fittings are crimped to the line.
I was wondering what measurement the fittings are? (metric or standard) My local auto parts store has a board with different holes to check this but the fittings didn't take on any of them.
I was hoping to buy some generic fittings and not have to go through mercury, assuming they even make these any more.

Thanks!
 

bob1340

Petty Officer 1st Class
Joined
Jun 12, 2010
Messages
287
Re: 7.5 HP Mercury fuel fittings

Pretty sure they are 1/8" NPT. I know I used 1/8" on my '70 model on the line from the carb to the pump.
 
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