Merc Cool Fuel Module update!

[JAYROCK]

I had issues with the cooling side of my module back in November of last year. It was leaking (water) after we replaced the fuel pumps. We got everything sealed up and all was well until..... I broke off the fitting on the module. I did not wont to remove the module again so I looped the cooling lines back into each other to prevent water from leaking in the bilge. This worked fine for stopping the leak. Everything seemed normal and it ran fine for the short time I ran the boat. Only on plane for 5min at a time. However with no cool water it, (heat) took out the low psi fuel pump.AGAIN! After a 15 mile run on plane. So I removed moved the module and replaced BOTH pumps again and made sure the cooling side was hooked up and not leaking, all is well.... Lesson learned, This cooling side of the module is necessary evil, will it work with out it YES! Will it work for long? NO!

 

[Billylll]

I believe depending on your Merc model there was a recall on the water cooled fuel modules.
Bill

 

[mawyatt]

Had both cool fuel modules done at dealer when getting bottom paint done and shaft & seals replaced. Mercury had a service alert out for this.

 

[mkivbren]

I lost a low spd pump when pulling out of slip end of season haul last year rb2@gr5t 50 hrs! Would have been nice to get a notice from Merc or dealer. Thanks for putting this up!