Quick fogging spray question

F

FuzzDaddy

Member
Jul 8, 2020
155
Boat Info
2002 Sea Ray 230 Signature
Engines
5.7 Mercruiser
I’m in the middle of winterizing my 2009 Sundeck V8 engine. I am not sure if I should spray fogging oil into the carb while running until it stalls out or not. Is this the proper way to do this? I wasn’t sure if it would harm any sensors or anything. It’s very hard to pull each spark plug and spray it directly into the cylinders because the manifold and risers are in the way. Thank you for your time
Corey-
 
As far as I know, that's the prescribed procedure (fogging 'til it dies). Who's fogger are you using, and what does it prescribe?
 
2009? Are you sure you have a carb? If you can list the exact engine model (boat doesn't matter), that would help.
 
Well, seeing as you don't have the model of your Sea Ray and you left out some needed details, It's going to be very hard to help you. But, when it comes to pickling an engine, spray it until it stops. If you have the MPI type motor, I'd at least remove the MAP or any other sensor you have in the intake before hand. Or spray it until it stops and use some carb cleaner ( very easily, don't go ninja on it) and clean the sensors in the spring.
 
If it is a carburetor, like mentioned above spray fogging oil straight into the carburetor, engine will start smoking and running a little rough, then just use the fogging oil to flood and stop the engine - done.

If it is fuel injected, don't use fogging spray - process is to mix a 50:1 2 cycle mixture in a portable tank and run the engine with this mix for 5min. A trick for this is to remove the fuel filter and fill it with the 2 cycle mix - just make sure you shut the engine off before you run the mix out of the fuel filter. I personally prefer the tank method.
 
I wouldn’t use fogging spray through the intake if you have catalytic converters in your exhaust (2009 should if I remember correct). Unless you are storing it outside I wouldn’t worry about fogging. Even cold storage has much more controlled humidity and a few months won’t be an issue in my experience. If you do want to fog it anyways, remove spark plugs and spray it into the plug holes, then reinstall them.
 
Hi everyone, thank you for the replies. I’m at work now and this is the only picture I have of the engine. Yes I believe it is a fuel injected engine. Just looks like a carb to me under the cover. I don’t think there are any cats on this engine at least none that I can see anyway.
 

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OK, so you have a fuel injected engine, no catalytic converters. When you take off your flame arrestor cover, you're looking at a throttle body - not a carb.

Mercruiser has a specific "cocktail" mixture of gas/2-cycle/stabilizer - which is easiest to measure when mixing up a large quantity in a 6-gallon tank and then plugging that into the filter head. However, that's not very convenient for the at home guy. I believe you have a spin-on fuel filter, right? Pull that off... add 2oz of 2-stroke and an ounce of stabilizer. That's way more stabilizer than needed, but it can only help your injectors. Run that mix at 1,200RPMs for exactly 5 minutes and then shut if off. Then drain the block/manifold, probe the holes, and re-fill with non-tox antifreeze through the t-stat hoses. Done.

This is assuming you have an Alpha drive - it's slightly different if you have a Bravo (it's be helpful to add your engine/drive specs to your signature).
 
Looks like a Bravo Drive since there is a pulley low on the left (under the alternator) which would be the raw water pump. You want to drain that pump and the water intake/engine supply lines by removing the two blue plugs on the outboard side of the pump housing and reinstall prior to adding antifreeze through the t-stat hoses.
 
Hi everyone, just had time off of work to look at the boat. Yes it is a fuel injected 5.0 MPI. My fault the throttle body looked like a carb. I should have know better. It is a bravo outdrive it has the 2 props. My fuel filter is NOT the spin on type it is a cartridge. Do I pour that mixture of 2 stoke and stabilizer inside the housing? I will also remove the blue drain plugs and problem them to make sure they are is no obstructions and free flowing water. Any other hints or procedures?
Thank you
 
Yes, just pour the mixture inside the canister. The 3 bolts used to secure the cap are captured - loosen till they're free but don't completely remove.

Since it's a Bravo, you'll either have blue drain plugs on the raw water pump or you should remove the output hose. Then flip your kill switch and turn the engine over a few times to evacuate water.
 
Any tips for next year….. I poured the stabilizer 2 stroke mix into the fuel canister and it overflowed when I put the cartridge back in. So next year should I get the remaining fuel out so there is more room for the mix or should I add that mix into the cup the fuel cartridge goes in?
 
Lazy Daze said:
OK, so you have a fuel injected engine, no catalytic converters. When you take off your flame arrestor cover, you're looking at a throttle body - not a carb.

Mercruiser has a specific "cocktail" mixture of gas/2-cycle/stabilizer - which is easiest to measure when mixing up a large quantity in a 6-gallon tank and then plugging that into the filter head. However, that's not very convenient for the at home guy. I believe you have a spin-on fuel filter, right? Pull that off... add 2oz of 2-stroke and an ounce of stabilizer. That's way more stabilizer than needed, but it can only help your injectors. Run that mix at 1,200RPMs for exactly 5 minutes and then shut if off. Then drain the block/manifold, probe the holes, and re-fill with non-tox antifreeze through the t-stat hoses. Done.

This is assuming you have an Alpha drive - it's slightly different if you have a Bravo (it's be helpful to add your engine/drive specs to your signature).
Click to expand...
Hello everyone,
Reviving my old thread from last year because I took lousy notes. Now I have more time and want to document what I do so I remember year after year. Yes I still have a 2009 Sea Ray Sundeck 5.0 MPI engine with Bravo outdrive. I’m still a little unsure on the correct method that Lazy Daze said last year which was

“add 2oz of 2-stroke and an ounce of stabilizer. That's way more stabilizer than needed, but it can only help your injectors. Run that mix at 1,200RPMs for exactly 5 minutes and then shut if off. Then drain the block/manifold, probe the holes, and re-fill with non-tox antifreeze through the t-stat hoses. Done.”

I remember when I did this last year the special cocktail mix over flowed everywhere. I have the cartridge canister with the 3 bolts, not the spin on filter type. Not sure what I was doing wrong?
Thank you for your time and help again!!!!
 
FuzzDaddy said:
I remember when I did this last year the special cocktail mix over flowed everywhere. I have the cartridge canister with the 3 bolts, not the spin on filter type. Not sure what I was doing wrong?
Thank you for your time and help again!!!!
Click to expand...
Just take some of the gas out, first.

Did you also drain the fuel filter housing? It's done either via blue plugs or loosening the retaining clip on the back side for the water cooling hoses and pulling it out slightly. Depending on the temps over the Winter, this area could crack if you don't.
 
FuzzDaddy said:
Hello everyone,
Reviving my old thread from last year because I took lousy notes. Now I have more time and want to document what I do so I remember year after year. Yes I still have a 2009 Sea Ray Sundeck 5.0 MPI engine with Bravo outdrive. I’m still a little unsure on the correct method that Lazy Daze said last year which was

“add 2oz of 2-stroke and an ounce of stabilizer. That's way more stabilizer than needed, but it can only help your injectors. Run that mix at 1,200RPMs for exactly 5 minutes and then shut if off. Then drain the block/manifold, probe the holes, and re-fill with non-tox antifreeze through the t-stat hoses. Done.”

I remember when I did this last year the special cocktail mix over flowed everywhere. I have the cartridge canister with the 3 bolts, not the spin on filter type. Not sure what I was doing wrong?
Thank you for your time and help again!!!!
Click to expand...
I would turn off the fuel line from the tank and run for a min or two to use up the fuel in the filter. Then fill with the mixture and go from there
 
Lazy Daze said:
Just take some of the gas out, first.

Did you also drain the fuel filter housing? It's done either via blue plugs or loosening the retaining clip on the back side for the water cooling hoses and pulling it out slightly. Depending on the temps over the Winter, this area could crack if you don't.
Click to expand...
I did not and never knew I needed too. I will make a note of this when I winterize next weekend if the weather is nice.
 
Golfman25 said:
I would turn off the fuel line from the tank and run for a min or two to use up the fuel in the filter. Then fill with the mixture and go from there
Click to expand...
Great idea! I never knew there was a knob to turn off the fuel. I will look for this tomorrow!
 
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