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  tubr fitting that is unattached in water well on 90 4 stroke

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Author Topic:   tubr fitting that is unattached in water well on 90 4 stroke
montaukman posted 06-13-2005 10:04 PM ET (US)   Profile for montaukman   Send Email to montaukman  
Hi Everyone,

In looking at my engine, in the water well where many of the cables rest, there is a thin black hose bundled to the rest of the wires and the end of this hose has a fitting on it that looks like it is meant to accept a tube of some sort

It has the tapered, stepped fitting at the end and seems to not have a home.

I hosed he boat down pretty well this weekend and just noticed it. Thought it might go somewhere and possibly got disconnected.

Anyone have any ideas? If i am not describing it properly, let me know and I will try to take a picture



fishgutz posted 06-13-2005 10:27 PM ET (US)     Profile for fishgutz  Send Email to fishgutz     
That's the pidot (pee-doe) tube for the speedometer. There is a small hole on the front of gear housing at the bottom of the motor that feeds the tube while underway and that is what moves the needle on a speedometer. Sounds like I just made all that up, but its true. Keep it plugged unless you want to get wet while speeding along.
fishgutz posted 06-13-2005 10:59 PM ET (US)     Profile for fishgutz  Send Email to fishgutz     
Sorry, Correct spelling is pitot. Pronounces pee-doe. A mechanical (as opposed to electronic) boat speedometer is pitot gauge.
montaukman posted 06-14-2005 12:15 AM ET (US)     Profile for montaukman  Send Email to montaukman     
thanks fishgutz,

it is not plugged now...justdangling in the splash well....should it stay unplugged dngling or does it need ot be inserted juvenile comments

fishgutz posted 06-14-2005 10:28 AM ET (US)     Profile for fishgutz  Send Email to fishgutz     
I checked my boat, I have a couple tubes actually. The one FROM the motor is plugged. Then I have a seperate tube that runs from the back of the boat to the console. That one is not plugged, no need to be. So check where yours comes FROM or runs TO and plug accordingly. If you're not getting any water spraying around I wouldn't worry.
Matthew posted 06-14-2005 12:23 PM ET (US)     Profile for Matthew  Send Email to Matthew     
Flushing port?
montaukman posted 06-15-2005 08:50 AM ET (US)     Profile for montaukman  Send Email to montaukman     

I think Matthew has it right.

I opened up the cowl yesterday to trace the tube and it appears that it runs to the center hose fitting for the outside threaded flushing intake. It "T"s out under the block so that the tube runs internally inside the engine and also branches out to the splash well.

So i guess it is a run off of diversion for the external hose flushing attachment.

Thanks for you help. I am glad it was not something that got disconnected.

All the best,


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