2005 MX 6.2 MPI Fuel Module Question

[badrano]

I have a new to me 2005 Chap with the 6.2 MPI engine. In the efforts of trying to learn some of the new components, I see that this engine has the fuel module with the cartridge filter, not the Cool Fuel that is shown in the engine manual #31.

Where can I find more info on the module?

Does this module have a water separator?
When the filter is changed, is it just the cartridge filter or is it like a filter assembly?
I also see connections to the sea water discharge line off the pump. There are 2 connections, one is more downstream than other. I'm assuming this is the Cool Fuel equivelent?

 

[alldodge]

IMO.........................

That piece of crud ... sorry going over the top

The module is a piece... sorry there I go again . ... does work but is not as good as the old cool fuel.

It does nothing different then the older cool fuel but parts cost much more. No way to just remove the canister filter and take any water with it, it has to be emptied and then dried out

The manual that covers it is number 40

 

[badrano]

Thanks for the pointer to the manual.

IMO.........................

That piece of crud ... sorry going over the top

You mean someone's new earth shattering idea to make something better didn't make it better? :lol::lol:

No way to just remove the canister filter and take any water with it, it has to be emptied and then dried out.

Reading the manual, it looks like the filter sits in the filter cup and the filter cup contains the water? From page 1A-3, are you saying you have to pull the filter (#21) from the filter cup (#23) and dump out the cup and let it dry? What's the filter disc (#24)?

 

[Greg_E]

It is the Cool Fuel III Module. You can find that manual and much more here. http://boatinfo.no/lib/library.html#

I agree with alldodge. Just a poor design.

Early versions where painted black inside where the two fuel filters are and it would flake off. When you pull out the pleated fuel filter cartridge there is a disc filter in the bottom of the CF III casting. If the paint chips get by the filter they clog the injectors. BIG PROBLEM!!!!!! . I was a new boat owner at the time and mine was a corroded mess Salt water cooled fuel cooler + bare aluminum = bad idea. I did not feel confident in trying to swap to the Cool Fuel II at the time and had bigger problems to deal with ( engine swap), so I had to buy new, at an exorbitant price. Google Cool fuel III Service Bulletin. Many threads on this subject if you search here.
If a fuel pump fails you will most likely break a screw off trying to get the lid off. They use thread forming screws with no loctite or sealer. If one fetches up, your all done. I could go on and on , but you get the idea by now.

 

[alldodge]

The cup isn't an actual cup, the disk is the bottom of the cup and is a screen filter, and it to gets replaced

In most cases folks just replace the filter if all looks good

 

[badrano]

Reading the service bulletin, is there a way to determine if the new module design is installed? It looks like the new module has the blue drain plug and the old doesn't?

If I don't have the new module, is it worth the preemptive strike to install the new one before problems show themselves?

 

[alldodge]

The old one had a single bolt that held both hoses to the module. The new has 2 individual limes using barbed fittings. The drain was also an addition

 

[Greg_E]

If I don't have the new module, is it worth the preemptive strike to install the new one before problems show themselves?

I would look for signs of the black paint starting to flake off in the fuel chamber. Mine was.
Also there were obvious signs of corrosion around the exterior of the housing where the cooling lines enter.
On closer inspection, there was more corrosion around the fuel line that brings the fuel up to the injector rail. If any of that gets in the fuel it is past the filters and goes right to the injectors. Your call on whether or not to replace it. For me it was obvious that it needed to go. I couldn't risk losing a new motor to save the price of the fuel module.
I relocated the raw water system flushing attachments to a more accessible location so I can easily flush the raw water side of the cooling system with fresh water after use. Hopefully that will increase the lifespan of the module and other components.