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-   -   quick winterize set-up - 06 MCX (http://www.mastercraft.com/teamtalk/showthread.php?t=57735)

mcrowe 10-07-2013 06:11 PM

quick winterize set-up - 06 MCX
 
Here in Colorado we have fairly variable weather during Oct & Dec. It could be 20 one day and 80 the next. With that being said we would like to be able to extend our season via drysuits. We need to be able to quickily winterize the boat.

One of the neighbors has a ball valve hooked to each manifold drain, each block drain, the water pump and one other location on his nautique (older model without knock sensors). It is really slick and he can winterize in less than 2 minutes (no joke).

Has anyone here done this to an MCX engine? The largest obstacle is the knock sensor(s). Is there a way to incororate the sensor in with this set up?

mcrowe 10-07-2013 06:52 PM

Also, I am aware that a copper "y" is not a good solution because the copper is not the same desnity as the cast iron block and the knock sensor will not pick up the frequencies it is searching for. With that being said, what about a cast-iron Y fitting?

bjen 10-07-2013 10:48 PM

Quote:

Originally Posted by mcrowe (Post 983563)
Also, I am aware that a copper "y" is not a good solution because the copper is not the same desnity as the cast iron block and the knock sensor will not pick up the frequencies it is searching for. With that being said, what about a cast-iron Y fitting?

My friends centurion has a mercruiser engine and it has a cast y with brass threaded fitting in the block on the knock sensor and a plastic "tap" thing in the other hole of the y. When he opened it up, it was completely clogged with junk and he had to take it out anyway and poke a zip-tie around the hole to get anything to drain. Come to think of it, I think he has the plastic taps in a few different spots.

The little tap things look like a good idea on paper but I'm not sure I would trust them.

mikeg205 10-07-2013 11:05 PM

Why not just pull the knock sensor - just keep some anti-seize in the threads so you can loosen it. It's not a pressurized system so you don't have to put 300 pounds of torque on the thing. Only takes a few seconds to loosen it.

CantRepeat 10-12-2013 07:21 AM

I wouldn't call just draining the water "winterizing". If you are only talking for one night just put a 40 watt drop light in the hull under the oil pan. It keep it from freezing for a night.

I would not move the knock sensor into any type of Y drainage system.

bigmac 10-12-2013 07:54 AM

I've known guys who put brass petcocks on the block between the knock sensor and block with no problem. One concern however is pieces of rust or other such crud in the block can easily clog the petcocks. Anyway, pretty straightforward...after a day on the lake, drain the block, drain the manifolds, pull the raw water hose, blow out or pump out the heater via a flushing T on the heater line. They claimed that took no more than 15 minutes.

Timr245 10-25-2013 03:35 PM

1 Attachment(s)
Attachment 102557

This is what I did on both sides.

CantRepeat 10-25-2013 03:37 PM

Quote:

Originally Posted by Timr245 (Post 987848)
Attachment 102557

This is what I did on both sides.

I'd really like to hook my laptop with diacom to an engine with that setup on it and check the knock count. Then measure that against a baseline knock count with the sensor still in block.

Perhaps, I'll do this next spring just for testing purposes.

Indyxc 10-27-2013 07:28 PM

Quote:

Originally Posted by CantRepeat (Post 987849)
I'd really like to hook my laptop with diacom to an engine with that setup on it and check the knock count. Then measure that against a baseline knock count with the sensor still in block.

Perhaps, I'll do this next spring just for testing purposes.

That would be interesting, and one of the only ways to verify if that kind of setup actually works.

Are there Mefi tuners you can plug into ECM with an OBD-2 style plug on our boats?

CantRepeat 10-27-2013 09:29 PM

Quote:

Originally Posted by Indyxc (Post 988142)
That would be interesting, and one of the only ways to verify if that kind of setup actually works.

Are there Mefi tuners you can plug into ECM with an OBD-2 style plug on our boats?

No, they are DLC and ICAN connectors.

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