fogging fuel injected 5.0 engine

[mrbill812]

I'm winterizing my 1st volvo penta engine and outdrive and it is fuel injected 5.0 gi. I do have years of experience with my old mercruiser and carbed 3 liter, but I noticed in the shop manual it tells you to run a mix of stabilizer, fogging oil and gas through the engine. I was planning to pull the plugs, spray fogging oil and turning over the engine on this part of the lay up process. Do all you DIYers that have fuel injected engines do this step?

thanks,
Mrbill

 

[Don S]

Re: fogging fuel injected 5.0 engine

Here is the Volvo service bulletin explaining how and why to use the mixture. It will also coat the valves, which doesn't happen when squirting oil in the cylinders.

http://forums.iboats.com/attachment.php?attachmentid=114563&d=1316460120

 

[Yacht Dr.]

Re: fogging fuel injected 5.0 engine

Im no engine tech.. but The guys here have taught me to put fuel stable in the tank .. Then do your engine oil/filter .. then the fuel filter ( which is pre-filled with treated fuel ) run and winterize.

They do this with Mercs and Pentas respectively.

I have never seen/used a remote treated fuel tank unless it was during an injected O/B winterize.

I hope you get more responses to see what the pros do.

YD.

 

[Silverbullet555]

Re: fogging fuel injected 5.0 engine

I used to do the elixir method but stopped a couple years ago. Primarily because it was a PITA to do and getting rid of the remaining fuel was an issue because I don't use much in the lawnmower. I go through less than a gallon of gas per year in our mower. Small lawn.

I have the seperate tank in storage. Probably would not be a bad idea to do this year since we could have a longer storage than normal.

 

[Don S]

Re: fogging fuel injected 5.0 engine

Primarily because it was a PITA to do and getting rid of the remaining fuel was an issue because I don't use much in the lawnmower. I go through less than a gallon of gas per year in our mower.

It's not near as big a PITA as pulling the spark plugs.

As for the remaining fuel, those service bulletins were made up for Volvo shops, not DIYer, and we used it on Volvo, Mercruiser and any others that came in.
For a DIYer, just mix up a gallon instead of 6, even in a small can if you have one. Stick a hose in the tank and hook to the filter. Run the engine as needed. Then pour the remaining gas in the boats tank, it won't hurt anything, and will be so diluted it won't be noticed.

Or you guys can just leave out any steps in the winterizing process you want. It's your engine. There isn't a "winterizing police" out there to make you do things right.
There are all kinds of posts here in the spring with broken blocks, engines that won't run, all because they didn't do things right cause they found a short cut.

 

[mrbill812]

Re: fogging fuel injected 5.0 engine

Thanks Don, I'll try the one gallon method, should I change the fuel filter before or after the treatment or does it matter? I'm not one for short cuts but thanks for explaining the 6 gallon/shop method as it did seem excessive to me, but I plan to run this low hour engine for many more years so I want to make it as easy as I can. This 2000 Glastron gx 205 had 97 hours on the engine, I've put 40 on this season.

mrbill

 

[mrbill812]

Re: fogging fuel injected 5.0 engine

Don, I'm assuming a 2 1/2 gallon plastic gas can will work for this procedure? I have plenty of 2 stroke motorcycle oil that needs used up, and I've already treated and filled my gas tank (running for about an hour on the lake) so my plan this week is to buy a length of fuel hose that will fit in the tank and attach to the fuel filter and run for 5 minutes as the bulletin says. And you are absolutely right, pulling those eight plugs to shoot fogger down was going to be a pita!

mrbill

 

[coastalcruiser]

Re: fogging fuel injected 5.0 engine

Thanks for the PDF Don,
Just the info I was looking for!

 

[BRICH1260]

Re: fogging fuel injected 5.0 engine

Has anyone ever heard of removing the fuel filter, adding some 2 cycle oil into the fuel filter, reinstalling on the engine, and running for a few minutes?

 

[Don S]

Re: fogging fuel injected 5.0 engine

You need to start a thread of your own Birch, have a look at the top of the forum at the announcement.

 

[BRICH1260]

Re: fogging fuel injected 5.0 engine

You need to start a thread of your own Birch, have a look at the top of the forum at the announcement.

Don, I only made my statement as it related to the origional post about fogging a fuel injected engine. I had read that adding 2 cycle oil to the fuel filter would coat the engine much the same way as using a separate fuel tank and mixture. I was not attempting to hijack the origional thread, only to add an additional perspective.

 

[Yacht Dr.]

Re: fogging fuel injected 5.0 engine

Has anyone ever heard of removing the fuel filter, adding some 2 cycle oil into the fuel filter, reinstalling on the engine, and running for a few minutes?

Yup.. post #3

Im no engine tech.. but The guys here have taught me to put fuel stable in the tank .. Then do your engine oil/filter .. then the fuel filter ( which is pre-filled with treated fuel ) run and winterize.

I just dont know if they used 2 cycle oil in the mix .. it was in a can that I filled up the FF.

You need to start a thread of your own Birch, have a look at the top of the forum at the announcement.

Don, I only made my statement as it related to the origional post about fogging a fuel injected engine. I had read that adding 2 cycle oil to the fuel filter would coat the engine much the same way as using a separate fuel tank and mixture. I was not attempting to hijack the origional thread, only to add an additional perspective.

I think your post was misinterpreted as a New question and not as a suggestion. .. Lemme fix it for ya Edited By YD with Bold and Itcs.

What has worked for me is removing the fuel filter, adding some 2 cycle oil into the fuel filter, reinstalling on the engine, and running for a few minutes. Worked great for me for the last X years.

There .. now all fixed up for ya

YD.

 

[mrbill812]

Re: fogging fuel injected 5.0 engine

Thanks for the ideas guys, it seems to me in my feeable mind that filling the fuel filter with 2stroke would coat the engine, but I think for the small investment of time and and doing the mixture as stated in the bulletin is going to be my way for this time. Too much $ invested in the boat and I want to treat it right.

Yup.. post #3



I just dont know if they used 2 cycle oil in the mix .. it was in a can that I filled up the FF.





I think your post was misinterpreted as a New question and not as a suggestion. .. Lemme fix it for ya Edited By YD with Bold and Itcs.



There .. now all fixed up for ya

YD.

 

[Don S]

Re: fogging fuel injected 5.0 engine

Thanks for the ideas guys, it seems to me in my feeable mind that filling the fuel filter with 2stroke would coat the engine, but I think for the small investment of time and and doing the mixture as stated in the bulletin is going to be my way for this time. Too much $ invested in the boat and I want to treat it right.

Very smart idea.

 

[Yacht Dr.]

Re: fogging fuel injected 5.0 engine

Thanks for the ideas guys, it seems to me in my feeable mind that filling the fuel filter with 2stroke would coat the engine, but I think for the small investment of time and and doing the mixture as stated in the bulletin is going to be my way for this time. Too much $ invested in the boat and I want to treat it right.

Actually nobody is suggesting you Fiil the FF with 2 stroke oil .. he just added it ( come to find out from the techs that they do the same mix ratio of 50:1 2 cycle and Sta-bil to the can that we poured into a fresh filter ).

So Its basically the same thing as the bulletin the way our techs do it ( aside from removing the fuel line and hooking up a 6 gal tank to it..then rehook the lines back up ). They just pour the mix right into the FF install and run it.

Just document how you do it .. things get a little dicey with Volvo and Merc. When the spring problems comes and you were not certified in dealing with there drives/motors .. they dont like a lot of DOY calls stating you followed procedure ..

Its not like your storing it for 2 years ..

Like Don said though.. always better to the letter.

YD.

 

[Don S]

Re: fogging fuel injected 5.0 engine

So Its basically the same thing as the bulletin the way our techs do it ( aside from removing the fuel line and hooking up a 6 gal tank to it..then rehook the lines back up ). They just pour the mix right into the FF install and run it.

No it's not.

There is nothing wrong with filling a NEW fuel filter with a clean fuel mixture before installing it. But you still need to have the mixture tank hooked up for it to work. If you don't then all you get is raw gas.
When you run the engine at low rpm, the fuel drizzles into the filters outer section, since all the oil is in the lower portion, it doesn't mix you just get new gas on top of the mixture that goes through the fuel filter material and gets picked up at the top of the inside portion by the fuel pump.
All that mixture is still on the bottom of the filter.
If you used the old filter and just some oil in the old fuel filter, it would sink to the bottom and not mix. That is why you shake small outboard tanks. To mix them up.

Fuel filter elements can not take some oil in the filter and mix it over time at 50-1 ratio for fogging, think about it.

Now, after running the engine for 5 or 10 minutes at idle to 1500 rpm on the trailer, with the fuel mixture tank hooked up, it's getting the proper ratio through the fuel system and engine.

 

[mrbill812]

Re: fogging fuel injected 5.0 engine

View attachment 115998
The procedure went well although I was nervous I would lose pressure or run out of fuel, so I didn't go as long as I will next time. Just a little over 5 minutes before shutting down.

Very simple and easy to pull off. As this is a new engine and boat for me, I found the ticking sound I wasn't sure about as I ran the motor with the flame arrestor off and saw how the 2 injectors spray the fuel into the throttle body and the ticking noise was from them. thanks for the help!

 

[Don S]

Re: fogging fuel injected 5.0 engine

That procedure was designed for MPI fuel injection. With your TBI fuel injection, you could have squirted fogging oil down the throttle body like a carbed engine.

 

[mrbill812]

Re: fogging fuel injected 5.0 engine

That procedure was designed for MPI fuel injection. With your TBI fuel injection, you could have squirted fogging oil down the throttle body like a carbed engine.

I was going to ask that question before I started, but since the shop manual shows layup on 5.0 gi engines sharing the same steps as many of the others, I thought there might be other reasons to do it this way. Next year will be easier and I learned a new method to do something, so nothing wasted.