Sea Ray 175 sport boat engine anti freeze

[jamesdjs]

I have a 2007 Sea Ray 17.5 with a 3.0L engine. The manual says remove the two hoses on the right side and put them below the exit point on the motor and drain the water. I did this but dont feel comfortable in the amount of water that came out but it did stop. I put a pressure hose to each drain linevto see if they were plugged but nothing extra came out.
To make me feel better I pulled the three hoses on the thermostat and filled each with anti freeze. I did get anti freeze out the 2 drain lines.
My question is am I safe from freezing?

Thanks

 

[Lazy Daze]

Yup, you are good.

FYI, for future reference, if you follow the two drain lines to the block and manifold, in many cases they are attached with quick disconnect fittings just like the ones up top at the "bracket". It would be easy to disconnect and poke the holes to ensure they didn't get clogged. But seeing the pink come through is a good sign.

Did you use propylene glycol AF?

 

[jamesdjs]

Yes, thanks for your response. I tried disconnecting the line from the engine with the quick connect but it didnt want to come off. Pushing in the clip release while pulling the hose line.

 

[Lazy Daze]

Yes, thanks for your response. I tried disconnecting the line from the engine with the quick connect but it didnt want to come off. Pushing in the clip release while pulling the hose line.

Probably just "heat stuck". If you feel up to it, try twisting the fitting a little to free it up and then pulling it off - possibly still twisting a bit at the same time. It should pop off just like the ones on the bracket.

 

[jamesdjs]

Ill give that a shot tomorrow.
Thanks

 

[Lazy Daze]

Anytime.

 

[jamesdjs]

I was able to remove the hose for the drain and pink anti freeze poured out so the hoses may have a plug in them. Ill take them off and blow them out.

 

[Lazy Daze]

I was able to remove the hose for the drain and pink anti freeze poured out so the hoses may have a plug in them. Ill take them off and blow them out.

Did something else happen? Or am I not understanding what you have written?

You said:
-- "AF came out of the drain side of each drain line".
Good
-- "AF came out of (I assume) the block and manifold" once you remove the hose from the block/manifold.
Even better - although that's just a double check kind of thing and not really necessary.

So... AF at the engine side of the hose and AF at the drain side of the hose says that the block is safe and the hoses are clear.

 

[GypsmJim]

I had a 3.0 as well. The mercruiser owner's manual was quite detailed on what to do. Nothing ambiguous. If the boat was second hand and you didn't get the manual, Mercury has them to download.

 

[jamesdjs]

The drain hoses were draining slow and I expected more flow out of the hoses. I did have AF come out of both hoses but again the flow appeared low. So I did what you said and took the two hoses off at the engine and AF poured out so I assume my hoses my are partially blocked.

 

[jamesdjs]

Thanks I have the manuals

 

[Lazy Daze]

The drain hoses were draining slow and I expected more flow out of the hoses. I did have AF come out of both hoses but again the flow appeared low. So I did what you said and took the two hoses off at the engine and AF poured out so I assume my hoses my are partially blocked.

Ah, gotcha.

 

[JimTMich]

Here is another data point for you.
I have a 95 Sea Ray 175 with the 3.0.
This older version does not provide drain hoses. So, to winterize, I open the drain plug on the bottom of the exhaust manifold (water comes out) and open the drain plug on the bottom port side of the engine (right below the exhaust manifold drain plug) and water comes out. Let those drain and your done. I once went through after the draining procedure and checked for water and couldn't find any in any of the hoses on the front of the engine or thermostat housing... I winterized this way for the last 20 years in lower Michigan and stored both outside some seasons and in the garage some seasons without an issue.
IMHO if you are adding glycol after draining, you have nothing to worry about.
YMMV as you have a newer version of the 3.0 with what sounds like a central drain system..

 

[GypsmJim]

Here is another data point for you.
I have a 95 Sea Ray 175 with the 3.0.
This older version does not provide drain hoses. So, to winterize, I open the drain plug on the bottom of the exhaust manifold (water comes out) and open the drain plug on the bottom port side of the engine (right below the exhaust manifold drain plug) and water comes out. Let those drain and your done. I once went through after the draining procedure and checked for water and couldn't find any in any of the hoses on the front of the engine or thermostat housing... I winterized this way for the last 20 years in lower Michigan and stored both outside some seasons and in the garage some seasons without an issue.
IMHO if you are adding glycol after draining, you have nothing to worry about.
YMMV as you have a newer version of the 3.0 with what sounds like a central drain system..

For that era engine, the manual suggests pulling off the tstat and filling the block with AF for "extra protection". I suppose that some water may still be present in a nook or cranny somewhere.

 

[jamesdjs]

Thanks very much for your reply. I took the extra step to add pink AF just to be on the safe side.

 

[JimTMich]

$6 well spent