recirculation check valves

[Jrsgoldenarm]

Hi I have a 1993 120 Johnson and I have a bad check valve.I was going to replace all 4 but at $25 each I cant at this time.Was wondering if any one has used a different check valve from a different outboard.I found these are Mercury part #426585 would these work?Thanks

 

[Scott Danforth]

welcome aboard

seriously doubt that you could get mercury parts to work in an OMC outboard and visa versa. merc designed theirs, OMC designed the ones they use.

 

[racerone]

If threads are the same it should work.

 

[Jrsgoldenarm]

Thanks for the replies.That's what I was thinking a check valve works or it doesn't.Thanks

 

[GA_Boater]

Welcome aboard.

As said by others, no chance of Merc valves fitting your Johnson.

But it may be possible to clean the valves. It's a spring loaded ball or flap making a one-way valve and unless it's actually broken, some solvent may soften and loosen the build up.

 

[Jrsgoldenarm]

I have a Johnson shop manual and have cleaned them per the manual.One of them still doesn't work.If the Merc.one has the same threads why wouldn't it work?Would they have different spring rate?

 

[Faztbullet]

Some check valves are open at rest and others are closed...could be a difference