OK guys.... For the last 7 years, my boat has been stored in a garage at Lake Havasu City, AZ where the temps top 120? for several months. Prior to Havasu, the boat spent most of its time in a garage in Southern CA and I could go 4 years on an impeller because the boat saw little use. I have found that I cannot go a full 2 years with about 50 hours on an impeller before it starts losing pieces of the tips of the vanes and I end up needing to fish them out of the thermostat housing. I have come to the conclusion that it is less effort to replace the impeller than to pull the TS housing so the last time I replaced it I swore to myself that I will change the impeller yearly from now on.
I usually just start the boat in the water after periods of non-use. I was thinking that the water in the housing might be evaporating when it sits for long periods without use in hi temps and I might be subjecting the pump to dry starts. I figured I could test my theory by hooking up the flushing adapter to start the boat in the driveway before going to the lake ensuring water was forced into the housing. When I lowered the drive to hook up the flushing adapter, water came out if the intake ports even after sitting for over a month indicating that there was still water in the intake lines.
This last year, the boat saw only 13 hours use instead of the usual 25-30.
My question is.... would you replace an impeller with 13 hours of use if it is only a year old but was exposed to high temperatures for extended time? Although it's less effort than pulling a TS housing, it's still a pain-in-the-butt to do.
I usually just start the boat in the water after periods of non-use. I was thinking that the water in the housing might be evaporating when it sits for long periods without use in hi temps and I might be subjecting the pump to dry starts. I figured I could test my theory by hooking up the flushing adapter to start the boat in the driveway before going to the lake ensuring water was forced into the housing. When I lowered the drive to hook up the flushing adapter, water came out if the intake ports even after sitting for over a month indicating that there was still water in the intake lines.
This last year, the boat saw only 13 hours use instead of the usual 25-30.
My question is.... would you replace an impeller with 13 hours of use if it is only a year old but was exposed to high temperatures for extended time? Although it's less effort than pulling a TS housing, it's still a pain-in-the-butt to do.