4.3L temperature switch

J

joedee983

Recruit
Joined
Jul 3, 2010
Messages
4
I have a 1989 4.3L Mercruiser in a Dixie. It only has a temp sender for a guage. I would like to add an overtemp switch with a alarm horn.I have a 3/8 NPT stainless steel switch,but I can't find a place ti install it. There is only 1 tapped hole in the thermostat housing. Anyone know where the newer engines have the switch

Thanks
Joe
 
Don S

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: 4.3L temperature switch

Look on the intake manifold on either side of the thermostat opening, you should see 2 pipe plugs.
 
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