Tank valve assembly

[PISTONESAL]

Hello,

I have a 75HP Mercury 2 stroke that has an oil tank that is missing the valve assembly. What is the purpose of this valve? Does anybody know? Please advise. thanks

 

[ondarvr]

Which valve assembly? Year, Model?

 

[PISTONESAL]

The valve on rear of oil tank on a year 2000 75hp outboard

 

[ondarvr]

If you're talking about the little round pop in vent, mine fell out a few years ago, I hunted around for about an hour or so and never found it, didn't think of it again until you asked about it.

 

[PISTONESAL]

Yes that's it. Does anybody know what it's for and what is issue if it's missing does it cause anything to happen? Thanks

 

[Mohawkmtrs]

It's a vent for the oil tank...the check valve is to prevent oil from spilling out of the tank when you fully raise up the motor (for trailering, etc.)

 

[PISTONESAL]

Ok. Well I had oil spill out from the oil fill in my tank when I trimmed the engine upp all the way and I googled the issue and there is a lot of people having this issue. I did what this person said on this forum see link. http://continuouswave.com/ubb/Forum3/HTML/016489.html

Are you stating if I put the valve assembly on that will resolve the oil leak? I don't need the rubber cap?

 

[GA_Boater]

How about a serial number - The only to see the parts, missing or otherwise.

 

[ondarvr]

I just don't fill the oil tank, never found a good way to keep it from leaking.

 

[PISTONESAL]

Look st that forum. It will show you the rubber seal you can get at home depot for like $3. That is how I solved it. My question is the valve assembly which consists of a cap and like a little platice valve needle. I already bought it for like $5 wonder if that is why it leaks?