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Impellers
- Midnightsun
- CYO Supporter
- Posts: 2850
- Joined: March 27th, 2016, 2:27 pm
- Vessel Info: The Midnight Sun
2007 41CMY
Volvo D6-370's - Location: Montreal, Canada
- Has thanked: 257 times
- Been thanked: 1099 times
Re: Impellers
This is a highly debated subject as some change every year, others 2 years, others remove them for winter layup. Pristine waters vs salt water vs sandy water vs murky waters all contribute to longevity. Never and I mean never start and engine even for a a very short period without water, you will either compromise or destroy the impeller in less than a couple of minutes.
- bud37
- Admiral
- Posts: 4683
- Joined: April 23rd, 2015, 10:22 pm
- Has thanked: 550 times
- Been thanked: 1145 times
Re: Impellers
I would crank the engine over ( 90 degrees) with a bar, but the crank nut is very small 5/8" on these GM's and easy to break if you are not very careful. ...also never liked the idea of the engines sitting in the same spot....good idea before spring startup to get the cam in a different position to unstick valves if it was not winterized well.
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- CYO Supporter
- Posts: 5810
- Joined: July 10th, 2015, 9:58 pm
- Vessel Info: 1989 Carver 3807 Aft Cabin
- Location: Ontario, Canada
- Has thanked: 432 times
- Been thanked: 1588 times
Re: Impellers
- Helmsman
- Commander
- Posts: 323
- Joined: May 9th, 2016, 9:16 am
- Vessel Info: Temporarily Boatless
- Has thanked: 71 times
- Been thanked: 42 times
Re: Impellers
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