Power steering cooler

[Yupeee]

Hi everyone!
I have an easy question to ask about the power steering cooler I have in my boat (I/O Yamaha Sterndrive - I bought it non functional).
I am rebuilding the engine and, when cleaning the parts, I noticed that the power steering cooler has at one connection tube (in the steering circuit) a small black round piece of rubber or plastic, which moves inside along with the tube, as I apply some air pressure... I am not certain that it should stay there or not.
I do not want to force it out until I am certain it should not be there... Any suggestions?
BTW, if I blow air in this circuit of the cooler, the air barely pass through... Is it normal?
Best regards,
Chris

 

[Scott Danforth]

Post a pic

should easily be able to blow air thru a PS cooler

 

[Grub54891]

I don't think it should be there. Yeah post a pic. You have made me curious.

 

[Yupeee]

I will... tomorrow... I'll be back...

 

[Yupeee]

Got the pictures... More, I pulled that thing out (see the picture).. I am convinced it shouldn't be there.... Now the air passes through without any issue...

 

[Bondo]

Ayuh,..... Welcome Aboard,...... Nope, that shouldn't be in the cooler,.....

 

[Grub54891]

Right, it's just a shipping seal. I thought that was what you were talking about. I've seen the same thing happen before. Somehow someone stuck it in the tube instead of over the tube. Good catch. One I saw as I was doing some service in a boat, it had the screw in fittings, The owner had screwed the line in the new cooler, without removing the plugs somehow. It leaked and he didn't know why, so he called me. Now he calls quite often....lol.