SoCal Jet Boats

Tech Talk => Engine Mechanical / Electrical => Topic started by: shadow3621 on June 08, 2019, 08:36:22 AM

Title: Sand in water jackets
Post by: shadow3621 on June 08, 2019, 08:36:22 AM

Does anyone have any suggestions on ways to get sand out of my water jackets?


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Title: Re: Sand in water jackets
Post by: mash on it on June 09, 2019, 08:40:15 AM

Using a ziptie or wire thru the block water drain above the oil pan rail.
And back flushing the same way.

Dan'l

Title: Re: Sand in water jackets
Post by: angermgmt on June 10, 2019, 06:47:13 AM

Is the engine still in the boat?


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Title: Re: Sand in water jackets
Post by: Rivernut on June 21, 2019, 03:59:12 AM

My boat has raw-water cooled Chevy 350.  I installed small ball-valves at the front and back of the exhaust manifolds and on two low spots of the water jackets.  I open them periodically and Rev the engine to blow out any debris such as sand.  I also use a piece of stiff wire  to push open any clogs at the ball-valves.  I especially do this in cold weather to prevent freeze damage.  I use a wire from one of those little surveying flags.