Need Help

[bass angler anthony]

Here recently my 2007 yamaha 3 cylinder 2 stroke 70 has been giving me issues. It started making a really loud banging metal sound when under pressure and in gear. the faster i go the louder and faster the sound is. in neutral the sound goes away. when trailered and i put the muffs on there is no sound either. this just started happeneing in the last two trips i was on. i will be draining the oil and pulling the lower unit but am asking if anyone has an idea on what it could be as this has never happened before.

[bullet20vee]

Sounds like the lower unit is shot if it only does it in gear. Time to call Junior at pitstop.

[usmcvetTR-21]

My 225 merc did the same thing a few years ago, blown lower, hopefully yours is alot cheaper, 3 feet of fishing line did $2000 worth of damage

[munchie]

Lower unit. Don't run it any more or you risk punching a hole in housing and ruining it if you haven't already

[Rousseau Fishing]

sounds like a broken gear. went through this a couple weeks ago. drain the oil and look for small metal flake.

In my case, insurance covered the repair, i stated water intruded from a damaged seal from fishing line and caused the failure.

[bass angler anthony]

i pulled the lower unit today so far nothing i can tell i will be draining the oil tomorrow

[bass angler anthony]

Looks like i need a new lower, drained the oil and have metal shavings on the magnet as well as the oil looks like moon dust

[NCDURAMAX05]

Check with buckhorn boat doc in Wilson