2003 F115 speedo tube not pressurizing

[SparkieBoat]

I tested the tube at the foot connection, tube is clear from foot to speedo. but is clogged somewhere in the foot, any ideas how to clear this up?? I have already tried water and air pressure. totally blocked somewhere.

 

[99yam40]

Re: 2003 F115 speedo tube not pressurizing

I have read to take a real small drill bit and twist it with your fingers into the hole on the front edge of the lower unit. they tend to plug up when bumping into things.
I forgot to say I believe Rod if off for training for a week he may or may not read for awhile

 

[SparkieBoat]

Re: 2003 F115 speedo tube not pressurizing

rgr..thanks a lot for all of your help

 

[bluka43]

Re: 2003 F115 speedo tube not pressurizing

I would first try 99yam40's suggestion with the small drill bit. You will probably only be able to go in just about 1", because then the little orifice turns upwards to connect to the tubing. This is normal and would be the most likely spot for the pluggage. If it won't go the 1", then the plug is before this, and for the better. Try squirting some WD-40 down the tubing and let it sit overnight if necessary. Then using compressed air try to back blow from the tubing to the orifice. BE VERY CAREFUL NOT TO OVERPRESSURE BY TIGHTLY SEALING OFF THE TUBING WITH COMPRESSED AIR.
You don't want to blow the tubing off the orifice fitting with back pressure. Good luck and let us know how it turned out.