Hello SFBC!
I've got an older 9.9 Johnson ['94'ish] which has been a reliable workhorse for many, many southern Gulf Island (Mayne) fun days on the water.
I had the impeller changed 2 years ago and due to many unforeseen circumstances, haven't run her since the change.
I'm a little worried because a buddy did the same and a season later, when he went to start her up, the impeller wasn't moving water. The explanation from the boat mechanic at the time was that because it hadn't been run after the change, it became "stuck" and that's why it basically stripped and wouldn't move water. Apparently the fins/tabs/blades of the impeller were stuck to the housing, and the bearings (or what have you) were spinning freely.
I'm in a situation where the motor has a new impeller, hasn't been run in the 2 years since it was changed, and I'd like to run it this coming weekend.
My question is this - what do I do to prevent the rubber fins of the impeller sticking to housing, stripping/sticking in turn, and avoid having another impeller issue?
I had one mechanic suggest that a little bit of vegetable oil would work (carefully squirted through the water intake screen), in particular because it wouldn't break down any seals, gaskets, etc. because it was a vegetable-based oil.
In a nutshell, I want to be able to run my engine but don't want to screw up an impeller and be landlocked.
As always, any and all responses are most welcome.
Many thanks and tight lines!
I've got an older 9.9 Johnson ['94'ish] which has been a reliable workhorse for many, many southern Gulf Island (Mayne) fun days on the water.
I had the impeller changed 2 years ago and due to many unforeseen circumstances, haven't run her since the change.
I'm a little worried because a buddy did the same and a season later, when he went to start her up, the impeller wasn't moving water. The explanation from the boat mechanic at the time was that because it hadn't been run after the change, it became "stuck" and that's why it basically stripped and wouldn't move water. Apparently the fins/tabs/blades of the impeller were stuck to the housing, and the bearings (or what have you) were spinning freely.
I'm in a situation where the motor has a new impeller, hasn't been run in the 2 years since it was changed, and I'd like to run it this coming weekend.
My question is this - what do I do to prevent the rubber fins of the impeller sticking to housing, stripping/sticking in turn, and avoid having another impeller issue?
I had one mechanic suggest that a little bit of vegetable oil would work (carefully squirted through the water intake screen), in particular because it wouldn't break down any seals, gaskets, etc. because it was a vegetable-based oil.
In a nutshell, I want to be able to run my engine but don't want to screw up an impeller and be landlocked.
As always, any and all responses are most welcome.
Many thanks and tight lines!