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Best set up for block drains

Old 12-18-2018, 12:24 AM
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Default Best set up for block drains

I like to drain the block for the winter, but the plugs are a mofo to get to with all of the hoses around that area. I bought the plugs with the wings on it but they didnít help matters any. Has anyone put extension hoses on them to a port valve of some sort? Surely thereís a decent system of some sort?
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Old 12-18-2018, 04:42 AM
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I'd tap the drain plug holes out to the next size and then run the extension hose.then you can use welding wire to open up any blockage w/ ease.
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Old 12-18-2018, 08:10 AM
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I made some tools for the shop to help with the Mercruiser blue plastic wingnut drain plugs, I found them a real PITA. we have a few hand held ones and one on a flexible shaft. We always use dialectic on the thread when we reinstall them which helps for the next year.
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Old 12-18-2018, 08:46 AM
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I installed these on our old Top Gun. It greatly cut down winterizing time!! 3 hours of playing twister to ~15 minutes for both engines. I was worried about them falling due to vibration but never observed an issue...

https://www.directmaterial.com/stain...0-psi-wog.html
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Old 12-18-2018, 09:19 AM
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Those are pretty cool JB ^^^^^^ how long are they ??
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Old 12-18-2018, 09:39 AM
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J-bonz

did you leave them as they were after you installed the valves or did you add extensions? I like the idea. Shouldíve done it when the motors were out.
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Old 12-18-2018, 09:49 AM
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I have installed prob at least 700 of these and always have about 40 on hand if this helps whomever. Very easy to install.

Last edited by BUP; 12-18-2018 at 09:58 AM.
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Old 12-18-2018, 10:02 AM
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Originally Posted by J-Bonz View Post
I installed these on our old Top Gun. It greatly cut down winterizing time!! 3 hours of playing twister to ~15 minutes for both engines. I was worried about them falling due to vibration but never observed an issue...

https://www.directmaterial.com/stain...0-psi-wog.html
Do these thread into the fitting in place of the blue plugs, or does the brass fitting need removed from block and these thread into the block?
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Old 12-18-2018, 10:06 AM
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They install directly in the block,

Edit: they appear to be about 1.5 inches long, so about the same length as the brass adapter and blue plug together

Last edited by F-2 Speedy; 12-18-2018 at 10:21 AM.
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Old 12-18-2018, 10:08 AM
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Originally Posted by F-2 Speedy View Post
They install directly in the block,
When I refresh motors in a couple years, these will be added. No way I can do it with engines in boat.
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