Hi there guys - I have a low hours Tohatsu M40C 2007 two stroke that has had a number of issues. Over the last year I have replaced the starter assembly 3 times (by Tohatsu Mechanic) and have now installed a complete Electric Starter kit as we could not fix the problems. This thing has hardly been used i.e. under 20hrs but it is now 5 years old I guess.
I recently did the Impeller and associated gaskets, as well as drop the oil from the gearbox and put new washers on the screws etc on the leg. I followed the workshop manual to a tee - with all the right gasket sealants etc and got my dad who is an aircraft Engineer to make sure it was all correct.
Now I have white milky oil leaking from lower hole in unit when it is parked. I have had this only for three weeks, i.e. when I first dropped the oil at the same time I did the impellor it was fine.
I know this means I have water ingress. Just not sure where, and if it is worth trying to fix myself if I spend the money on all the seals etc and it is something more serious? I did do a silly thing though, I have been out twice with it knowing that it had this leak somewhere. However, before and after each trip I drained and refilled with new oil the lower leg, just to be safe.
Last night coming home to the boatramp - all was fine after only about 30 minutes allup of running, and then pop - she jumped out of gear on the leg and lost drive. I shut down, and started up from scratch again - all was well and I half-putted home. It did it a few more times at low revs though.
Does this mean it is seized/seizing and what can I do right now to stop this from getting worse than I made it?
Long story short - am I up for a full rebuild of the lower unit or can I just replace all seals and go again?
I recently did the Impeller and associated gaskets, as well as drop the oil from the gearbox and put new washers on the screws etc on the leg. I followed the workshop manual to a tee - with all the right gasket sealants etc and got my dad who is an aircraft Engineer to make sure it was all correct.
Now I have white milky oil leaking from lower hole in unit when it is parked. I have had this only for three weeks, i.e. when I first dropped the oil at the same time I did the impellor it was fine.
I know this means I have water ingress. Just not sure where, and if it is worth trying to fix myself if I spend the money on all the seals etc and it is something more serious? I did do a silly thing though, I have been out twice with it knowing that it had this leak somewhere. However, before and after each trip I drained and refilled with new oil the lower leg, just to be safe.
Last night coming home to the boatramp - all was fine after only about 30 minutes allup of running, and then pop - she jumped out of gear on the leg and lost drive. I shut down, and started up from scratch again - all was well and I half-putted home. It did it a few more times at low revs though.
Does this mean it is seized/seizing and what can I do right now to stop this from getting worse than I made it?
Long story short - am I up for a full rebuild of the lower unit or can I just replace all seals and go again?
