kenmyfam
Supreme Mariner
- Joined
- Aug 10, 2006
- Messages
- 14,392
Changed out the impeller last May (2009)
Ran the motor late March this year (2010) on the muffs to check things out. All was well and pumping fine. Been away on business trips a lot recently so have not yet had our first splash of the season. This morning showed it to be a perfect boating day. About to hang the trailer on the Jimmy when something just told me to fire her up before we left. Guess what ?? not pumping a drop of water from the tell tale. Well we did not get to go boating today but we did not fry the motor either !!!
This is a one year old impeller with about 30 hours on it. It has never been started or even cranked over without the muffs hooked up. I have spent the day so far ripping apart the entire cooling system. Initially thought the stats were giving trouble, checked them out but all was well. Opening at around 145 degrees. Cleaned all cooling hoses by removing and blowing out with compressed air, removed elbow fittings and did the same. Removed water control valve and found no issues (there will be another post on that one shortly) Found it hard to believe that it would be the impeller but yes it was !!
Will be changing it out annually after seeing this. Couple of hours work for peace of mind. After messing around with everything else I ran it without the stats for a minute and nothing, then ran it with the stat covers off and still nothing.....that's when I moved downstairs and took off the lower unit.
Be warned everyone, if I had ignored this I would have been a few minutes from a fried motor !!!!
The bonding of the rubber to the drive bushing came completely away. Key is still good as is the shaft.
New parts in the morning and hopefully out on the lake this coming week.
Ken.
Ran the motor late March this year (2010) on the muffs to check things out. All was well and pumping fine. Been away on business trips a lot recently so have not yet had our first splash of the season. This morning showed it to be a perfect boating day. About to hang the trailer on the Jimmy when something just told me to fire her up before we left. Guess what ?? not pumping a drop of water from the tell tale. Well we did not get to go boating today but we did not fry the motor either !!!
This is a one year old impeller with about 30 hours on it. It has never been started or even cranked over without the muffs hooked up. I have spent the day so far ripping apart the entire cooling system. Initially thought the stats were giving trouble, checked them out but all was well. Opening at around 145 degrees. Cleaned all cooling hoses by removing and blowing out with compressed air, removed elbow fittings and did the same. Removed water control valve and found no issues (there will be another post on that one shortly) Found it hard to believe that it would be the impeller but yes it was !!
Will be changing it out annually after seeing this. Couple of hours work for peace of mind. After messing around with everything else I ran it without the stats for a minute and nothing, then ran it with the stat covers off and still nothing.....that's when I moved downstairs and took off the lower unit.
Be warned everyone, if I had ignored this I would have been a few minutes from a fried motor !!!!
The bonding of the rubber to the drive bushing came completely away. Key is still good as is the shaft.
New parts in the morning and hopefully out on the lake this coming week.
Ken.
