Motor swap,from 50 horse to 70 horse.

cat toon

Seaman
Joined
Sep 20, 2010
Messages
61
I swaped the motor out on my toon,the 50 horse had a water pressure gauge on but the 70 horde did not I have a good gauge on the toon is there any way I can plum the 70 to worke on the gague?
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,758
Re: Motor swap,from 50 horse to 70 horse.

Use the same gauge and plumbing as the 50.
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,758
Re: Motor swap,from 50 horse to 70 horse.

How was the Merc plumbed? Give us some help here. They either pick up water pressure from a port in the water cover or via a "T" fitting in the tell tale hose. Either place works on some motors and on others not. Try the tell tale first since it is as simple as stopping at Lowes for a plastic "T" fitting. If that doesn't work you need to add a port at the top of the head. There is a post somewhere in this forum showing how to do that. Use the search feature to find it.
 
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