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  What is this sticking out of my drive.

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Author Topic:   What is this sticking out of my drive.
gorji posted 06-17-2006 09:31 PM ET (US)   Profile for gorji   Send Email to gorji  
Hi:

I brought the whaler (montauk 170 with 90 HP Mercury) home from the marina for a out of town trip. While I was doing a superficial exam of the engine, I noticed this tube sticking out of the drive. The tube image is at
http://www.gorji.com/extension.jpg.

Can someone please tell me what this is and if it effects the function of the engine? Should I cancel my trip or should I tuck this in until I see my mechanic next week.

Thank you,

Gorji

Casco Bay Outrage posted 06-17-2006 09:36 PM ET (US)     Profile for Casco Bay Outrage  Send Email to Casco Bay Outrage     
error 404 found. Can you fix the link.
gorji posted 06-17-2006 09:38 PM ET (US)     Profile for gorji  Send Email to gorji     
My link does not work. I am working on it.

In the meantime the tube is on the outdrive and has a plug on one end thats conical and the other end is attached to the lower end of the outdrive.

Dick posted 06-17-2006 09:38 PM ET (US)     Profile for Dick  Send Email to Dick     
I got Forbidden Access Denied
gorji posted 06-17-2006 09:40 PM ET (US)     Profile for gorji  Send Email to gorji     
Can I email this image to someone please? Its pretty small pic.
Dick posted 06-17-2006 09:45 PM ET (US)     Profile for Dick  Send Email to Dick     
Better description, thanks.
My inital guess is that is the hose that connects to a speedometer hose. Mercurys have the speedo intake in the lower unit so a pitot pick up doesn't have to be installed on the transom.

Dick

gorji posted 06-17-2006 09:54 PM ET (US)     Profile for gorji  Send Email to gorji     
My whaler does not have a speedometer.
Here is a picture in photobucket:
http://i75.photobucket.com/albums/i312/gorji/whaler/extension.jpg

Thank you

Casco Bay Outrage posted 06-17-2006 10:10 PM ET (US)     Profile for Casco Bay Outrage  Send Email to Casco Bay Outrage     
It looks exactly like the speedo tube.

While you don't have a speedometer gauge, the engine comes with the tube already installed.

Are there two ends in the photo? If so, the base of the tube has come off the lower unit fitting.

Are you sure that is a Merc? Weird photo.

gorji posted 06-17-2006 10:13 PM ET (US)     Profile for gorji  Send Email to gorji     
Hi:

I have a tachometer; no speedometer. Its a standard stock 90HP Saltwater series mercury. The nonloose end is attached to the lower drive and is stable.

The picture is taken at an angle. I apologize for this.

Dick posted 06-17-2006 10:24 PM ET (US)     Profile for Dick  Send Email to Dick     
That is the speedometer pick up tube. I have never see one hanging out like that though it looks like it may have come off of the fitting at the pick up. Find the small hole in the front of the lower unit and install a round tooth pick break off the excess and the pick up is closed, it will do it soon anyway from junk in the water.
I think that then I would pull on the hose and see if it will come out. If not cut it off and put the plug in.
gorji posted 06-18-2006 05:57 AM ET (US)     Profile for gorji  Send Email to gorji     
Thank you. I appreciate this.
Tom W Clark posted 06-18-2006 10:53 AM ET (US)     Profile for Tom W Clark  Send Email to Tom W Clark     
Dick is correct, it is the pitot pickup hose.

Why Mercury still uses these things is beyond me. They are worthless as they easily become clogged with debris.

Furthermore Mercury provides no clean way to terminate them if they are not in use. Both my Mercurys have these dumb hoses crimped, zip-tied and tucked into the midsection so the hoses don't squirt water when the motors are running bit it looks totally make-shift and improvised.

I need to find a better and more permeant cap for the hose barb emerging from the lower unit.

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