Heater install on a 2002 5.0 merc EFI

[Richard11153]

I have a 2002 Four Winns (5.0 merc EFI) I have a heater to install, but I do not know where to connect the
supply & return water hoses to. Can any one help with a diagram??

Thanks

 

[agallant80]

Re: Heater install on a 2002 5.0 merc EFI

I have a 2002 Four Winns (5.0 merc EFI) I have a heater to install, but I do not know where to connect the
supply & return water hoses to. Can any one help with a diagram??

Thanks

Supply is from the manifold return is on the side of the water pump on the block.

http://forums.iboats.com/boat-topic...ics/hot-water-heater-supply-block-595506.html

 

[agallant80]

Re: Heater install on a 2002 5.0 merc EFI

Here you go. I did a photo for you. Let me know if you get stuck.

 

[Bondo]

Re: Heater install on a 2002 5.0 merc EFI

I have a 2002 Four Winns (5.0 merc EFI) I have a heater to install, but I do not know where to connect the
supply & return water hoses to. Can any one help with a diagram??

Thanks

Ayuh,.... Welcome Aboard,..... agallant80 has got ya headed the Right way, complete with pictures,....

Hot water Outa the intake, behind the t-stat, 'n returned to a port on the circulatin' water pump housin',..

You'll need a 1/2" pipe to hose barb in the diameter of the heater ports, so 2 fittin's total,...
Common sizes are 1/2" pipe to 1/2" barb, 1/2" pipe to 5/8" barb, 'n 1/2" pipe to 3/4" barb,...

 

[Richard11153]

Re: Heater install on a 2002 5.0 merc EFI

Thanks !