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  #1  
Old 10-31-2014, 06:28 PM
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Ball Valves/Block Drains

I wondered if anyone has installed ball valves on their engine blocks to replace the brass plugs for easier draining? I know SkiDim sells the kit with 2 block and 2 exhaust drains but I figured I could pick up a couple of 1/4 turn 1/4 npt ball valve and 2 short brass nipples for under 20 bucks. Just thinkin????
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Old 10-31-2014, 06:39 PM
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I have the pitcock valves on my block. One is froze and won't turn. The other is OK. They would work for a quick drain but it is still recommend to remove them and probe with a wire to remove any obstruction if you want to make sure your block is completely drained. A little debris clogging the valve would hold water back and you wouldn't know. The exhaust manifolds are not quite as sensitive and the quick drain valves might work OK.
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Old 10-31-2014, 06:42 PM
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One of my drain plugs has the knock sensor on it. Not sure if your is setup the same, but I think that would be a problem if I wanted to install ball valves.
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Old 10-31-2014, 07:49 PM
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I have an RTP, no knock sensor. I could install ball valves on both sides.
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Old 11-01-2014, 06:51 PM
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My old 351 ford prostar I installed petcocks on the risers and block drains....
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Old 11-01-2014, 08:33 PM
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I have them on each water jacket. Just make sure you close them before your first time out in the spring. :/
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Old 11-01-2014, 10:12 PM
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Ball Valves/Block Drains

I just installed the ski dim kit.
Looks easy to drain for sure. So for doing a few times a year it seems to be a winner.

However, I'm disappointed the exhaust valves reduce the dia immediately. I would have debated returning, and going ball valve route, but didn't want to mess with shipping and going back to lowes.

Ski dim said you still need to remove them every three years or so to clean out the funk.
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Old 11-01-2014, 11:18 PM
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I just bought these from ski dim. Haven't installed them yet, but Im hoping they work ok. I try to take a couple cold weather winter runs a month here in Washington. Im hoping they will cut time on the re-winterization, but I'm also concerned about chunks of debris getting stuck in them.
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  #9  
Old 11-02-2014, 12:41 AM
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I have them on my block drains to better deal with the rules in TX these days. Home depot valves. They work well.
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Old 11-02-2014, 12:47 AM
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I ski all year around here in Washington and store my boat outside. I installed the SkiDim ball valves in the block and exhaust manifolds several years ago and plumbed them into a common drain hose. It takes me no more a few minutes to drop the drain hose through the hull drain hole and open the valves. Works great.
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