The location of the original transducer may be a little close to the engine. As Big Lew mentioned, the Garmin installation instructions should give you some guidance on minimum distance. If Garmin says it's ok, you should be good.

On the holes for the old transducer and speed sender, 5200 will work, but if you can drill them out a little and pump some thickened epoxy resin in them that would be a more permanent solution.

Dave

Do I pump in epoxy and thats it or do I pump in epoxy and then 5200 over that ? Going to do the install today

Just fill the holes with epoxy and let them set up. Make sure there are no bubbles and level it the best you can with the surrounding surface makeing sure there are no "low" spots. After it sets up and cures-a couple of days- sand to the surrounding surface and apply finish coats-paint, gelcoat, etc.

get a counter sink bit and get some 30 minute or 60 minute epoxy from home depot and mix it to be like mayo. maybe a little thinner. drill a little counter sink in the holes first then fill the holes as best you can and put masking tape over the holes until dry. it will be sealed for good. you wont need five thousand two hundred for the old holes just the new ones.

Put in some work with my old man today...

Drilling out the old holes in prep for the sealer...
http://i122.photobucket.com/albums/o...7/fdd21cfa.jpg
http://i122.photobucket.com/albums/o...7/13a5a229.jpg
http://i122.photobucket.com/albums/o...7/f752cbe7.jpg
http://i122.photobucket.com/albums/o...7/6208c682.jpg

Sealed up some holes and installed the ducer..
http://i122.photobucket.com/albums/o...7/1d955e28.jpg

Max hanging out in the shade
http://i122.photobucket.com/albums/o...7/4483b6c1.jpg

Vuala, GPS
http://i122.photobucket.com/albums/o...7/36985206.jpg

Also changed put my T-stats on the Merc,they were toast.
http://i122.photobucket.com/albums/o...7/87fb2987.jpg
http://i122.photobucket.com/albums/o...7/d719cd91.jpg

Highly recommend a protective screen cover for the head unit. Windex, sunscreen, etc. will permanently stain the screen. I usually get mine from ebay :( They also minimize scratches from rings and stuff. Be sure and grease the plug pins occasionally

what do you mean stain the screen ?

See here;

http://www.ebay.com/itm/Screen-Prote...item53e57243c5

Today's electronics have a protective coating on the screens. Harsh chemicals including sunscreen will damage it. These protectors also offer mechnical protection; rings, hooks, etc. I'm not pushing the vendor just the concept. I have them on all of mine including I phone.

Nice i got one on my iPhone as well, didnt know they made these for the Garmin. Will be picking one up. Thanks

So how accurate is the speed reading on one of these things ?

http://i122.photobucket.com/albums/o...7/e95221bd.jpg