Winterizing Two Boats Help!

[Last Mohican]

That should do it. If you replace those plugs with petcocks it will be easier to drain the block next time around. If you choose to use plugs you can get brass plugs at a local auto parts or hardware store.

[neller840]

When I'm adding the antifreeze do I run the motor??

The reason I ask this, is if the end of the plumbing system ends at the exhaust tips. Isn't there a chance if it's not running that antifreeze or water would slip back down the exhaust, and enter the engine possibly??

Or should I disconnect the feeds to the exhausts on both boats??

Hawaiian



Kona

[Last Mohican]

You do not need to run the motor to add anti freeze. If you do run the motor you need to pull the drive shaft so you are not turning the pump. It is hard on the pump to run it with the boat out of the water.

It's not a valve you can blow with too much pressure it is a gasket. It is common for too much pressure to blow an intake gasket. This is usually a non issue on a boat with logs instead of headers. As long as the water is plumbed from the pump to the logs first, the logs are generally restrictive enough that the pressure never builds in the block.

Given your setup, over transom with logs, I would disconnect the water from the exhaust like you are talking about. With through transom exhaust there are "snails" to keep the water from running back into the heads through the exhaust. You do not have snails so that could be a major issue. Good catch on your part.

[neller840]

That should do it. If you replace those plugs with petcocks it will be easier to drain the block next time around. If you choose to use plugs you can get brass plugs at a local auto parts or hardware store.

Any idea what size thread type?? I definitely want to get petcocks for them. Without the old plugs I have nothing to match up.. I guess get a few bolts, and try to match one up..

[Last Mohican]

Any idea what size thread type?? I definitely want to get petcocks for them. Without the old plugs I have nothing to match up.. I guess get a few bolts, and try to match one up..

Bolts will not work. Those are tapered pipe threads in the block. Bolts are straight threads. IIRC they are 3/8 NPT.

I see you fixed the images. The Kona has snails. No need to disconnect the water feed to the exhaust on it.

[neller840]

I know that leaving the used oil in there is a bad idea, as the acids in it eat metal for breakfast. So I'm setting up for my next question:

How do you change oil on these engines?

I've heard that sometimes it's easier to pull the motor to do it right.. I can't imagine that's the way to do it. I have heard of pumps used to pump the oil out, is that the best solution??

[Last Mohican]

Looks like a couple of cool boats. Post up some pics of the whole boat.

[Last Mohican]

I've done it with a cheap hand pump from Walmart. It worked but it took forever and it was a pain in the ass. I have since added a valve to mine and connect it to a hose that I run through the drain plug in the hull. Not sure what to tell you the best way is on your boat. Just depends on how much clearance you have under the pan. I'm crashing for the night. Good luck with them.

[neller840]

I see you fixed the images. The Kona has snails. No need to disconnect the water feed to the exhaust on it.

Yeah but the hose attaches on the right side(manifold side) of the snail unit. I think to be safe I'll just detach it anyway.

[neller840]

Thanks a ton you guys!! I will put some pics up this weekend.. All I have with me is my cell phone, and it just doesn't take good pics. I can't say how much I appreciate your help.. Any computer questions feel free to msg me!! Thanks again!!

[Last Mohican]

Where's the new pics?

[sleekcrafter]

unless the ports are plugged, the water flows out the exhaust, running or not. Reversion is the biggest problem with log exhaust, flush and drain everything, then pump it with antifreeze. Once the antifreeze hits the exhaust outlets your done