CTFishTalk.com: DRILLING INTO AN ALUMINUM BOATS STERN? - Connecticut Boat Repair, Electronics, and Motor Help ( CT Boat Repair, Electronics, and Motor Help ) - A Community Built for Connecticut Fisherman.

cmorjoe · Joined: 03 May 2007 Posts: 256 Location: Seymour CT.

The lower unit of my 60 yamaha where the tube for the speedometer goes in is hoplessly plugged up. I have the pilot tube for the water pickup so the speedo will work again. PROBLEM... do I just drill some holes and mount the pickup? Should I fill the holes with calk before I screw in the water pickup? Any ideas would be a help. THANKS CMORJOE

Quint's Revenge · Joined: 29 May 2007 Posts: 239 Location: West Haven

cut a pice of marine pvc board (not sure what its really called) and screw that to the stern and mount the speed o to the board.. Caulk around the board and put some on the mounting screws. This is how i did my transducer and it worked out awesome.
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Ladies and gentleman take my advice.... pull down your pants and slide on the ice.

Old Mud · Joined: 03 May 2007 Posts: 1048 Location: Bath, Maine

YUP: "Seaboard" is one brand. 3M 5200 around the board and screws/bolts. Board should be thru bolted to hull if transom is Aluminum only, any pickup or transducer should be screwed to the board. 1/2" board should be plenty but you can get it 3/4" or 1" if you like. Just a little overkill. Smile

Don
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"I was so poor growing up that if I wasn't a BOY I'd have had nothing to play with"

All that truly matters in the end is that you LOVED !!!!

cmorjoe · Joined: 03 May 2007 Posts: 256 Location: Seymour CT.

thanks for the advice but WHERE DO YOU FIND SEABOARD? would a lumber yard have it or would you have to go to a place like boatersworld. cmorjoe

cmorjoe · Joined: 03 May 2007 Posts: 256 Location: Seymour CT.

I actually had the drill in my hand when I realized HECK I DON'T NEED A SPEEDOMETER ANYWHAY.. Yeah I chickened out. cmorjoe

Rookie · Joined: 08 May 2007 Posts: 487 Location: Milford Ct

balk balk balk Smile

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Thar aint NO fish in here !!!!!!!!

RUSSELL J. HALL · Joined: 03 Sep 2007 Posts: 27

GPS WILL PROVIDE A SPEED READING A LOT MORE ACCURATE ,IN TENTHS OF A MILE, AND" NO HOLES".....ALSO A COMBINATION DEPTH FINDER , GPS , AND MOST UNITS WILL PROVIDE VOLTAGE READING FOR PRIMARY BATTERY.