mercury quickleen vs. decarbing

[pugerz]

I have read alot about how to do a decarb by spraying directly into carborators and cleaning out carbon buildup that way. I was at outboard mechanic shop and he recommended mercury quickleen for this purpose. He said i could buy one product and spray it in carborators or this other product to add to my fuel. I bought the fuel additive. Motor seemed to run a little rougher during the day today. Was wondering if this is all you need to do or should i do a decarb by spraying directly in carborator. Have a 86 85 force motor, I bought on boat last august not sure about its maintenance history. thanks for input on this.

 

[JustJason]

Re: mercury quickleen vs. decarbing

quickkleen is more for keeping the very very small jets clean in 4 stroke engines. Its more of a fuel system treatment than a decarbonizer.

Why are you trying to decarb the motor. Low compression, run on issues?

 

[pugerz]

Re: mercury quickleen vs. decarbing

The bottle says in back to use in 2 cycle or 4 cycle gasoline engines each time the boat is fueled. Synthetic cleaners remove deposits in the combustion chamber while preventing corrosion and future deposits from forming. Combustion chamber is the cylinder, pistons, right? Mechanic said it would do same thing as the spray mix in the carborators for cleaning out carbon buildup in combustion chamber. True or False. Compression results are in 120s for the motor and it runs fine just wanting to do some maintenance on engine is all.

 

[JustJason]

Re: mercury quickleen vs. decarbing

Eagh... people are going to give you different responses when it comes to snake oils and other additives. So i'm not going to say wether your mechanic was right or wrong, as it certainly doesn't hurt to run the quickleen through it.

If you don't have one already, installing a fuel water seperating filter is the best PM you can do for the buck. And if you live in a humid area, or don't use the boat all that much, add stabilizer in your fuel every time you fuel it up.

 

[pugerz]

Re: mercury quickleen vs. decarbing

I bought an inline fuel filter for the gas line going into the motor. Is this the same thing as a fuel/water separator? The mechanic has been an outboard mechanic i guess for 40 years specializing in mercury and force motors. He said carbon buildup behind the rings on the force motors causes the motor to eventually need to be rebuilt. He said i should remove this carbon buildup and use one of the two products. Both were Mercury products and he said both did the same thing, just the procedure was different. I bought the easier procedure method. He also said i should not run any oil in motor but Mercury or Johnson oils because they are the only ones that have lubrizol as an additive in the oil. Who knows what oil has been run in this motor to date. I have been running pennzoil, he scoffed at pennzoil. guess im rambling now.

 

[RRitt]

Re: mercury quickleen vs. decarbing

my completely uninformed and ignorant opinion is that through carb spray cleaners will clean your carb venturi circuit, topside of valves, (to a smaller extent) inside of cylinder head, and (to an even smaller yet extent) top of pistons. After all, it is getting burned off almost as fast as it enters the combustion chamber.

However, a truly deep cleaning would also get the gunk in and around your piston rings. To get this you need a product that can settle in and drip down the cylinder walls. I.E. a small amount of seafoam pured directly into spark plug holes followed my manual rotation of flywheel and a generous waiting period.

IMUI you should do both.

 

[pugerz]

Re: mercury quickleen vs. decarbing

thanks for you input. It just seems to me from what i have read on here about carbon removal in the cylinder always has to do with spraying in carborator while motor running, smoke, soot behind propeller, and then do it again. Not sure why if all you have to do is add this product to your fuel is not another way mentioned to get the same results over time. It seems to me that one procedure does the removal now and the other does the same thing over a period of time. Of coarse im a novice going by what i have read on here and now this old outboard mechanic who didnt really give me any details on one method vs. the other. I am just putting 2 and 2 together.

 

[jerryjerry05]

Re: mercury quickleen vs. decarbing

Both ways are good.The sea-foam or power tune soak will get the bad spots.
If your compression is good then keep up with the occasional de carb.
The better the oil the less carbon you have to remove.J